Diagnostic Trouble Codes (DTCs)

When the sensing and diagnostic module (SDM) detects any problem, it turns on the airbag warning light and stores diagnostic trouble codes in memory (DTC).

Any troubleshooting of the airbag system (SIR) you must start by checking the SIR diagnostic system. Checking the diagnostic system with a scan tool allows you to read diagnostic trouble codes (DTC). The scan tool also checks for correct operation of the airbag warning light.

The system records two types of DTCs:

1. Active Diagnostic Trouble Codes (DTC) characterize the malfunctions registered during the current ignition cycle. Active DTCs are stored in random access memory (RAM).

2. History DTCs represent problems recorded since the last time the history memory was cleared. Archived diagnostic codes are stored in EEPROM (EEPROM).

Table of diagnostic trouble codes

DTC and Description	DTC symptom	warning lamp
B0012 Front Airbag Deployment Circuit - Left Front/Driver	Too high resistance	Yes
	chain break
	Too low resistance
	Short circuit to ground
	Short to battery voltage
B0014 Side Airbag Deployment Circuit Left Front/Driver	Too high resistance	Yes
	chain break
	Too low resistance
	Short circuit to ground
	Short to battery voltage
B0015 Pretensioner Deployment Circuit - Left Front/Driver	Too high resistance	Yes
	chain break
	Too low resistance
	Short circuit to ground
	Short to battery voltage
B0016 Airbag Deployment Circuit - Left Front/Driver, Roof Rail/Head Curtain	Too high resistance	Yes
	chain break
	Too low resistance
	Short circuit to ground
	Short to battery voltage
B0019 Front Airbag Deployment Circuit - Right Front/Passenger	Too high resistance	Yes
	chain break
	Too low resistance
	Short circuit to ground
	Short to battery voltage
B0021 Side Airbag Deployment Circuit Right Front/Passenger	Too high resistance	Yes
	chain break
	Too low resistance
	Short circuit to ground
	Short to battery voltage
B0022 Pretensioner Deployment Circuit Right Front/Passenger	Too high resistance	Yes
	chain break
	Too low resistance
	Short circuit to ground
	Short to battery voltage
B0023 Airbag Deployment Circuit - Right Front/Passenger, Roof Rail/Head Curtain	Too high resistance	Yes
	chain break
	Too low resistance
	Short circuit to ground
	Short to battery voltage
B0052 Operation Commanded	-	Yes
B0053 Trip commanded with DTCs present	-	Yes
B0055 Side Airbag Deployment Commanded	-	Yes
B0085 Side collision sensor (SIS): left front / driver	Internal fault/defective electronics	Yes
	Wrong components installed
	Short circuit to ground
	Short to ground or open circuit
	Short to battery voltage
	Invalid serial data received
	Intermittent fault
B0086 Side collision sensor (SIS): right front / passenger	Internal fault/defective electronics	Yes
	Wrong components installed
	Short circuit to ground
	Short to ground or open circuit
	Short to battery voltage
	Invalid serial data received
	Intermittent fault
B1000 Electronic control controller function (ECU)	-	Yes
B1001 Wrong vehicle (The SDM module has not passed the validation of the vehicle)	-	Yes
B1019 SDM module system configuration error	-	Yes
B1370 Circuit "Work/Start" (ignition 1 device)	Short to ground or open circuit	No
U0073 Controller communication bus disabled	-	No
U0140 Lost communication with BCM	-	No
U0155 Lost communication with IPC	-	No

• Too high or too low resistance - The driver airbag deployment circuit resistance is greater than 4.24 ohms or less than 2.01 ohms.
• chain break - Rupture of a forward chain of deployment of pillows of safety of the driver
• Short to battery voltage or short to ground - Short to battery voltage or ground on the front driver's airbag deployment circuit.

Attention! Sensor and diagnostic module (SDM) can maintain sufficient voltage to deploy the airbags and pretensioners for 1 minute after the ignition is turned off and the fuse has been removed. If the airbags and pretensioners are not disconnected, do not start service until one minute has passed after disconnecting power from the SDM. Failure to do so may result in injury.

Attention! During maintenance, handle the sensing and diagnostics module (SDM) very careful. Do not hit or shake the SDM. Never connect power to the airbag system (SIR), if the SDM is not hardwired to the vehicle. To make the airbag system (SIR) is working correctly, all SDM sensor and diagnostic module mounting bolts must be properly tightened, and the arrow on the SDM must point towards the front of the vehicle. If the SDM is not securely attached to the vehicle, the enabled module may deploy, causing the airbags to deploy unexpectedly and may result in injury.

Step	Operation	Values	Yes	No
1	Make sure the ignition key is in the OFF position. Wait a minute to discharge the SDM's power supply.	-	Go to Step 2	-
2	Inspect the driver's front airbag connector and wiring. Connector disabled?	-	Connect the connector and go to Step 1	Go to Step 3
3	Make sure the ignition key is in the OFF position. Remove the driver's front airbag module. Disconnect the sensor and diagnostic module wiring connector (SDM). Check the resistance between terminals 9, 8 of the SDM and the high and low terminals of the driver's front airbag module. Resistance close to 0 (zero)?	? 0 ohm	Go to Step 4	Go to Step 5
4	Replace SDM. Perform the BCM reprogramming procedure to have the BCM relearn the new SDM ID. Make sure the ignition key is in the ON position. Clear the DTC using a scan tool. Perform the Airbag System Diagnostic System Check (SIR). Has the diagnostic trouble code been removed?	-	The system is normal.	Replace the driver's front airbag module.
5	Disconnect the connector from the clock spring wiring. Check the resistance between pins 9, 8 of the SDM and pins 4, 3 of the clock spring. Resistance close to 0 (zero)?	? 0 ohm	Replace clock spring.	Replace airbag wiring.

Attention! Sensor and diagnostic module (SDM) can maintain sufficient voltage to deploy the airbags and pretensioners for 1 minute after the ignition is turned off and the fuse has been removed. If the airbags and pretensioners are not disconnected, do not start service until one minute has passed after disconnecting power from the SDM. Failure to do so may result in injury.

Attention! During maintenance, handle the sensing and diagnostics module (SDM) very careful. Do not hit or shake the SDM. Never connect power to the airbag system (SIR), if the SDM is not hardwired to the vehicle. To make the airbag system (SIR) is working correctly, all SDM sensor and diagnostic module mounting bolts must be properly tightened, and the arrow on the SDM must point towards the front of the vehicle. If the SDM is not securely attached to the vehicle, the enabled module may deploy, causing the airbags to deploy unexpectedly and may result in injury.

Step	Operation	Values	Yes	No
1	Make sure the ignition key is in the OFF position. Wait a minute to discharge the SDM's power supply.	-	Go to Step 2	-
2	Inspect the driver's front airbag connector and wiring. Is the airbag wiring damaged?	-	Replace airbag wiring.	Go to Step 5
3	Make sure the ignition key is in the OFF position. Remove the driver's front airbag module. Disconnect the sensor and diagnostic module wiring connector (SDM). Check the resistance between the high and low terminals of the driver's front airbag module. Is the resistance equal to	?	Go to Step 4	Go to Step 5
4	Replace SDM. Perform the BCM reprogramming procedure to have the BCM relearn the new SDM ID. Make sure the ignition key is in the ON position. Clear the DTC using a scan tool. Perform the Airbag System Diagnostic System Check (SIR). Has the diagnostic trouble code been removed?	-	The system is normal.	Replace the driver's front airbag module.
5	Disconnect the connector from the clock spring wiring. Check the resistance between pins 3 and 4 of the clock spring. Is the resistance equal to	?	Replace airbag wiring.	Replace clock spring.

Attention! Sensor and diagnostic module (SDM) can maintain sufficient voltage to deploy the airbags and pretensioners for 1 minute after the ignition is turned off and the fuse has been removed. If the airbags and pretensioners are not disconnected, do not start service until one minute has passed after disconnecting power from the SDM. Failure to do so may result in injury.

Attention! During maintenance, handle the sensing and diagnostics module (SDM) very careful. Do not hit or shake the SDM. Never connect power to the airbag system (SIR), if the SDM is not hardwired to the vehicle. To make the airbag system (SIR) is working correctly, all SDM sensor and diagnostic module mounting bolts must be properly tightened, and the arrow on the SDM must point towards the front of the vehicle. If the SDM is not securely attached to the vehicle, the enabled module may deploy, causing the airbags to deploy unexpectedly and may result in injury.

Step	Operation	Values	Yes	No
1	Make sure the ignition key is in the OFF position. Wait a minute to discharge the SDM's power supply.	-	Go to Step 2	-
2	Inspect the driver's front airbag connector and wiring. Is the airbag wiring damaged?	-	Replace airbag wiring.	Go to Step 3
3	Make sure the ignition key is in the OFF position. Remove the driver's airbag module. Disconnect the sensor and diagnostic module wiring connector (SDM). Check the resistance between the driver's front airbag module high and low wires and ground. Resistance above 50 kOhm?	50ohm	Go to Step 4	Go to Step 5
4	Replace SDM. Perform the BCM reprogramming procedure to have the BCM relearn the new SDM ID. Make sure the ignition key is in the ON position. Clear the DTC using a scan tool. Perform the Airbag System Diagnostic System Check (SIR). Has the diagnostic trouble code been removed?	-	The system is normal.	Replace the driver's front airbag module.
5	Disconnect the connector from the clock spring wiring. Check the resistance between the clock spring high and low wires and ground. Resistance above 50 kOhm?	50ohm	Replace clock spring.	Replace airbag wiring.

Attention! Sensor and diagnostic module (SDM) can maintain sufficient voltage to deploy the airbags and pretensioners for 1 minute after the ignition is turned off and the fuse has been removed. If the airbags and pretensioners are not disconnected, do not start service until one minute has passed after disconnecting power from the SDM. Failure to do so may result in injury.

Attention! During maintenance, handle the sensing and diagnostics module (SDM) very careful. Do not hit or shake the SDM. Never connect power to the airbag system (SIR), if the SDM is not hardwired to the vehicle. To make the airbag system (SIR) is working correctly, all SDM sensor and diagnostic module mounting bolts must be properly tightened, and the arrow on the SDM must point towards the front of the vehicle. If the SDM is not securely attached to the vehicle, the enabled module may deploy, causing the airbags to deploy unexpectedly and may result in injury.

Step	Operation	Values	Yes	No
1	Make sure the ignition key is in the OFF position. Wait a minute to discharge the SDM's power supply.	-	Go to Step 2	-
2	Inspect the driver's front airbag connector and wiring. Is the airbag wiring damaged?	-	Replace airbag wiring.	Go to Step 3
3	Make sure the ignition key is in the OFF position. Remove the driver's airbag module. Disconnect the sensor and diagnostic module wiring connector (SDM). Check the resistance between the driver's front airbag module high and low wires and battery voltage. Resistance above 50 kOhm?	50ohm	Go to Step 4	Go to Step 5
4	Replace SDM. Perform the BCM reprogramming procedure to have the BCM relearn the new SDM ID. Make sure the ignition key is in the ON position. Clear the DTC using a scan tool. Perform the Airbag System Diagnostic System Check (SIR). Has the diagnostic trouble code been removed?	-	The system is normal.	Replace the driver's front airbag module.
5	Disconnect the connector from the clock spring wiring. Check the resistance between the high and low wires of the clock spring and the battery. Resistance above 50 kOhm?	50ohm	Replace clock spring.	Replace airbag wiring.

• Too high or too low resistance - Driver's side airbag deployment resistance is greater than 3.45 ohms or less than 1.77 ohms.
• chain break - An open circuit in the driver's side airbag deployment circuit.
• Short to battery voltage or short to ground - Short to battery voltage or ground on the driver side airbag deployment circuit.

Attention! Sensor and diagnostic module (SDM) can maintain sufficient voltage to deploy the airbags and pretensioners for 1 minute after the ignition is turned off and the fuse has been removed. If the airbags and pretensioners are not disconnected, do not start service until one minute has passed after disconnecting power from the SDM. Failure to do so may result in injury.

Attention! During maintenance, handle the sensing and diagnostics module (SDM) very careful. Do not hit or shake the SDM. Never connect power to the airbag system (SIR), if the SDM is not hardwired to the vehicle. To make the airbag system (SIR) is working correctly, all SDM sensor and diagnostic module mounting bolts must be properly tightened, and the arrow on the SDM must point towards the front of the vehicle. If the SDM is not securely attached to the vehicle, the enabled module may deploy, causing the airbags to deploy unexpectedly and may result in injury.

Step	Operation	Values	Yes	No
1	Make sure the ignition key is in the OFF position. Wait a minute to discharge the sensing and diagnostic module power supply.	-	Go to Step 2	-
2	Inspect the driver's side airbag connector and wiring. Connector disabled?	-	Connect the connector and go to Step 1	Go to Step 3
3	Make sure the ignition key is in the OFF position. Disconnect the driver side airbag module connector. Disconnect the sensor and diagnostic module wiring connector (SDM). Check the resistance between terminals 13, 12 of the SDM and terminals 2, 1 of the driver's side airbag module. Resistance close to 0 (zero)?	? 0 ohm	Go to Step 4	Replace airbag wiring.
4	Replace SDM. Perform the BCM reprogramming procedure to have the BCM relearn the new SDM ID. Make sure the ignition key is in the ON position. Clear the DTC using a scan tool. Perform the Airbag System Diagnostic System Check (SIR). Has the diagnostic trouble code been removed?	-	The system is normal.	Replace the driver's side airbag module.

Attention! Sensor and diagnostic module (SDM) can maintain sufficient voltage to deploy the airbags and pretensioners for 1 minute after the ignition is turned off and the fuse has been removed. If the airbags and pretensioners are not disconnected, do not start service until one minute has passed after disconnecting power from the SDM. Failure to do so may result in injury.

Attention! During maintenance, handle the sensing and diagnostics module (SDM) very careful. Do not hit or shake the SDM. Never connect power to the airbag system (SIR), if the SDM is not hardwired to the vehicle. To make the airbag system (SIR) is working correctly, all SDM sensor and diagnostic module mounting bolts must be properly tightened, and the arrow on the SDM must point towards the front of the vehicle. If the SDM is not securely attached to the vehicle, the enabled module may deploy, causing the airbags to deploy unexpectedly and may result in injury.

Step	Operation	Values	Yes	No
1	Make sure the ignition key is in the OFF position. Wait a minute to discharge the SDM's power supply.	-	Go to Step 2	-
2	Inspect the driver's side airbag connector and wiring. Is the airbag wiring damaged?	-	Replace airbag wiring.	Go to Step 3
3	Make sure the ignition key is in the OFF position. Disconnect the driver side airbag module connector. Disconnect the sensor and diagnostic module wiring connector (SDM). Check the resistance between terminals 2 and 1 of the driver's side airbag module. Is the resistance equal to	?	Go to Step 4	Replace airbag wiring.
4	Replace SDM. Perform the BCM reprogramming procedure to have the BCM relearn the new SDM ID. Make sure the ignition key is in the ON position. Clear the DTC using a scan tool. Perform the Airbag System Diagnostic System Check (SIR). Has the diagnostic trouble code been removed?	-	The system is normal.	Replace the driver's side airbag module.

Attention! Sensor and diagnostic module (SDM) can maintain sufficient voltage to deploy the airbags and pretensioners for 1 minute after the ignition is turned off and the fuse has been removed. If the airbags and pretensioners are not disconnected, do not start service until one minute has passed after disconnecting power from the SDM. Failure to do so may result in injury.

Attention! During maintenance, handle the sensing and diagnostics module (SDM) very careful. Do not hit or shake the SDM. Never connect power to the airbag system (SIR), if the SDM is not hardwired to the vehicle. To make the airbag system (SIR) is working correctly, all SDM sensor and diagnostic module mounting bolts must be properly tightened, and the arrow on the SDM must point towards the front of the vehicle. If the SDM is not securely attached to the vehicle, the enabled module may deploy, causing the airbags to deploy unexpectedly and may result in injury.

Step	Operation	Values	Yes	No
1	Make sure the ignition key is in the OFF position. Wait a minute to discharge the SDM's power supply.	-	Go to Step 2	-
2	Inspect the driver's side airbag connector and wiring. Is the airbag wiring damaged?	-	Replace airbag wiring.	Go to Step 3
3	Make sure the ignition key is in the OFF position. Disconnect the driver side airbag module connector. Disconnect the sensor and diagnostic module wiring connector (SDM). Check the resistance between the high and low wires of the driver's side airbag module and ground. Resistance above 50 kOhm?	50ohm	Go to Step 4	Replace airbag wiring.
4	Replace SDM. Perform the BCM reprogramming procedure to have the BCM relearn the new SDM ID. Make sure the ignition key is in the ON position. Clear the DTC using a scan tool. Perform the Airbag System Diagnostic System Check (SIR). Has the diagnostic trouble code been removed?	-	The system is normal.	Replace the driver's side airbag module.

Attention! Sensor and diagnostic module (SDM) can maintain sufficient voltage to deploy the airbags and pretensioners for 1 minute after the ignition is turned off and the fuse has been removed. If the airbags and pretensioners are not disconnected, do not start service until one minute has passed after disconnecting power from the SDM. Failure to do so may result in injury.

Attention! During maintenance, handle the sensing and diagnostics module (SDM) very careful. Do not hit or shake the SDM. Never connect power to the airbag system (SIR), if the SDM is not hardwired to the vehicle. To make the airbag system (SIR) is working properly, all SDM sensing and diagnostic module mounting bolts must be properly tightened, and the arrow on the SDM must point towards the front of the vehicle. If the SDM is not securely attached to the vehicle, the enabled module may deploy, causing the airbags to deploy unexpectedly and may result in injury.

Step	Operation	Values	Yes	No
1	Make sure the ignition key is in the OFF position. Wait a minute to discharge the SDM's power supply.	-	Go to Step 2	-
2	Inspect the driver's side airbag connector and wiring. Is the airbag wiring damaged?	-	Replace airbag wiring.	Go to Step 3
3	Make sure the ignition key is in the OFF position. Disconnect the driver side airbag module connector. Disconnect the sensor and diagnostic module wiring connector (SDM). Check the resistance between the driver's side airbag module high and low wires and battery voltage. Resistance above 50 kOhm?	50ohm	Go to Step 4	Replace airbag wiring.
4	Replace SDM. Perform the BCM reprogramming procedure to have the BCM relearn the new SDM ID. Make sure the ignition key is in the ON position. Clear the DTC using a scan tool. Perform the Airbag System Diagnostic System Check (SIR). Has the diagnostic trouble code been removed?	-	The system is normal.	Replace the driver's side airbag module.

• Too high or too low resistance - The resistance of the driver's seat belt pretensioner deployment circuit is greater than 3.54 ohms or less than 1.77 ohms.
• chain break - Break in the driver's seat belt pretensioner deployment circuit.
• Short to battery voltage or short to ground - Short to battery voltage or ground on the driver's seat belt pretensioner deployment circuit.

Attention! Sensor and diagnostic module (SDM) can maintain sufficient voltage to deploy the airbags and pretensioners for 1 minute after the ignition is turned off and the fuse has been removed. If the airbags and pretensioners are not disconnected, do not start service until one minute has passed after disconnecting power from the SDM. Failure to do so may result in injury.

Attention! During maintenance, handle the sensing and diagnostics module (SDM) very careful. Do not hit or shake the SDM. Never connect power to the airbag system (SIR), if the SDM is not hardwired to the vehicle. To make the airbag system (SIR) is working properly, all SDM sensing and diagnostic module mounting bolts must be properly tightened, and the arrow on the SDM must point towards the front of the vehicle. If the SDM is not securely attached to the vehicle, the enabled module may deploy, causing the airbags to deploy unexpectedly and may result in injury.

Step	Operation	Values	Yes	No
1	Make sure the ignition key is in the OFF position. Wait a minute to discharge the SDM's power supply.	-	Go to Step 2	-
2	Inspect the connector and wiring for the driver's seat belt pretensioner. Connector disabled?	-	Connect the connector and go to Step 1	Go to Step 3
3	Make sure the ignition key is in the OFF position. Disconnect the driver's seat belt pretensioner connector. Disconnect the sensor and diagnostic module wiring connector (SDM). Check the resistance between terminals 5, 4 of the SDM and terminals 2, 1 of the driver's seat belt pretensioner. Resistance close to 0 (zero)?	? 0 ohm	Go to Step 4	Replace airbag wiring.
4	Replace SDM. Perform the BCM reprogramming procedure to have the BCM relearn the new SDM ID. Make sure the ignition key is in the ON position. Clear the DTC using a scan tool. Perform the Airbag System Diagnostic System Check (SIR). Has the diagnostic trouble code been removed?	-	The system is normal.	Replace the driver's seat belt pretensioner.

Attention! Sensor and diagnostic module (SDM) can maintain sufficient voltage to deploy the airbags and pretensioners for 1 minute after the ignition is turned off and the fuse has been removed. If the airbags and pretensioners are not disconnected, do not start service until one minute has passed after disconnecting power from the SDM. Failure to do so may result in injury.

Attention! During maintenance, handle the sensing and diagnostics module (SDM) very careful. Do not hit or shake the SDM. Never connect power to the airbag system (SIR), if the SDM is not hardwired to the vehicle. To make the airbag system (SIR) is working correctly, all SDM sensor and diagnostic module mounting bolts must be properly tightened, and the arrow on the SDM must point towards the front of the vehicle. If the SDM is not securely attached to the vehicle, the enabled module may deploy, causing the airbags to deploy unexpectedly and may result in injury.

Step	Operation	Values	Yes	No
1	Make sure the ignition key is in the OFF position. Wait a minute to discharge the SDM's power supply.	-	Go to Step 2	-
2	Inspect the connector and wiring for the driver's seat belt pretensioner. Is the wiring damaged?	-	Replace airbag wiring.	Go to Step 3
3	Make sure the ignition key is in the OFF position. Disconnect the driver's seat belt pretensioner connector. Disconnect the sensor and diagnostic module wiring connector (SDM). Check the resistance between terminals 1 and 2 of the driver's seat belt pretensioner. Is the resistance equal to	?	Go to Step 4	Replace airbag wiring.
4	Replace SDM. Perform the BCM reprogramming procedure to have the BCM relearn the new SDM ID. Make sure the ignition key is in the ON position. Clear the DTC using a scan tool. Perform the Airbag System Diagnostic System Check (SIR). Has the diagnostic trouble code been removed?	-	The system is normal.	Replace the driver's seat belt pretensioner.

Attention! Sensor and diagnostic module (SDM) can maintain sufficient voltage to deploy the airbags and pretensioners for 1 minute after the ignition is turned off and the fuse has been removed. If the airbags and pretensioners are not disconnected, do not start service until one minute has passed after disconnecting power from the SDM. Failure to do so may result in injury.

Attention! During maintenance, handle the sensing and diagnostics module (SDM) very careful. Do not hit or shake the SDM. Never connect power to the airbag system (SIR), if the SDM is not hardwired to the vehicle. To make the airbag system (SIR) is working correctly, all SDM sensor and diagnostic module mounting bolts must be properly tightened, and the arrow on the SDM must point towards the front of the vehicle. If the SDM is not securely attached to the vehicle, the enabled module may deploy, causing the airbags to deploy unexpectedly and may result in injury.

Step	Operation	Values	Yes	No
1	Make sure the ignition key is in the OFF position. Wait a minute to discharge the SDM's power supply.	-	Go to Step 2	-
2	Inspect the connector and wiring for the driver's seat belt pretensioner. Is the wiring damaged?	-	Replace airbag wiring.	Go to Step 3
3	Make sure the ignition key is in the OFF position. Disconnect the driver's seat belt pretensioner connector. Disconnect the sensor and diagnostic module wiring connector (SDM). Check the resistance between the driver's pretensioner high and low wires and ground. Resistance above 50 kOhm?	50ohm	Go to Step 4	Replace airbag wiring.
4	Replace SDM. Perform the BCM reprogramming procedure to have the BCM relearn the new SDM ID. Make sure the ignition key is in the ON position. Clear the DTC using a scan tool. Perform the Airbag System Diagnostic System Check (SIR). Has the diagnostic trouble code been removed?	-	The system is normal.	Replace the driver's seat belt pretensioner.

Attention! Sensor and diagnostic module (SDM) can maintain sufficient voltage to deploy the airbags and pretensioners for 1 minute after the ignition is turned off and the fuse has been removed. If the airbags and pretensioners are not disconnected, do not start service until one minute has passed after disconnecting power from the SDM. Failure to do so may result in injury.

Attention! During maintenance, handle the sensing and diagnostics module (SDM) very careful. Do not hit or shake the SDM. Never connect power to the airbag system (SIR), if the SDM is not hardwired to the vehicle. To make the airbag system (SIR) is working correctly, all SDM sensor and diagnostic module mounting bolts must be properly tightened, and the arrow on the SDM must point towards the front of the vehicle. If the SDM is not securely attached to the vehicle, the enabled module may deploy, causing the airbags to deploy unexpectedly and may result in injury.

Step	Operation	Values	Yes	No
1	Make sure the ignition key is in the OFF position. Wait a minute to discharge the SDM's power supply.	-	Go to Step 2	-
2	Inspect the connector and wiring for the driver's seat belt pretensioner. Is the wiring damaged?	-	Replace airbag wiring.	Go to Step 3
3	Make sure the ignition key is in the OFF position. Disconnect the driver's seat belt pretensioner connector. Disconnect the sensor and diagnostic module wiring connector (SDM). Check the resistance between the high and low wires of the driver's pretensioner and the battery. Resistance above 50 kOhm?	50ohm	Go to Step 4	Replace airbag wiring.
4	Replace SDM. Perform the BCM reprogramming procedure to have the BCM relearn the new SDM ID. Make sure the ignition key is in the ON position. Clear the DTC using a scan tool. Perform the Airbag System Diagnostic System Check (SIR). Has the diagnostic trouble code been removed?	-	The system is normal.	Replace the driver's seat belt pretensioner.

• Too high or too low resistance - The driver head curtain airbag deployment circuit resistance is greater than 3.54 ohms or less than 1.77 ohms.
• chain break - Break in the driver's head curtain actuation circuit.
• Short to battery voltage or short to ground - Short to battery voltage or ground on the driver's head curtain deployment circuit.

Attention! Sensor and diagnostic module (SDM) can maintain sufficient voltage to deploy the airbags and pretensioners for 1 minute after the ignition is turned off and the fuse has been removed. If the airbags and pretensioners are not disconnected, do not start service until one minute has passed after disconnecting power from the SDM. Failure to do so may result in injury.

Attention! During maintenance, handle the sensing and diagnostics module (SDM) very careful. Do not hit or shake the SDM. Never connect power to the airbag system (SIR), if the SDM is not hardwired to the vehicle. To make the airbag system (SIR) is working correctly, all SDM sensor and diagnostic module mounting bolts must be properly tightened, and the arrow on the SDM must point towards the front of the vehicle. If the SDM is not securely attached to the vehicle, the enabled module may deploy, causing the airbags to deploy unexpectedly and may result in injury.

Step	Operation	Values	Yes	No
1	Make sure the ignition key is in the OFF position. Wait a minute to discharge the SDM's power supply.	-	Go to Step 2	-
2	Inspect the driver's head curtain airbag connector and wiring. Connector disabled?	-	Connect the connector and go to Step 1	Go to Step 3
3	Make sure the ignition key is in the OFF position. Disconnect the driver's head curtain airbag module connector. Disconnect the sensor and diagnostic module wiring connector (SDM). Check the resistance between terminals 17, 16 of the SDM and terminals 1, 2 of the driver's head curtain airbag module. Resistance close to 0 (zero)?	? 0 ohm	Go to Step 4	Replace airbag wiring.
4	Replace SDM. Perform the BCM reprogramming procedure to have the BCM relearn the new SDM ID. Make sure the ignition key is in the ON position. Clear the DTC using a scan tool. Perform the Airbag System Diagnostic System Check (SIR). Has the diagnostic trouble code been removed?	-	The system is normal.	Replace driver's head curtain airbag module.

Attention! Sensor and diagnostic module (SDM) can maintain sufficient voltage to deploy the airbags and pretensioners for 1 minute after the ignition is turned off and the fuse has been removed. If the airbags and pretensioners are not disconnected, do not start service until one minute has passed after disconnecting power from the SDM. Failure to do so may result in injury.

Attention! During maintenance, handle the sensing and diagnostics module (SDM) very careful. Do not hit or shake the SDM. Never connect power to the airbag system (SIR), if the SDM is not hardwired to the vehicle. To make the airbag system (SIR) is working correctly, all SDM sensor and diagnostic module mounting bolts must be properly tightened, and the arrow on the SDM must point towards the front of the vehicle. If the SDM is not securely attached to the vehicle, the enabled module may deploy, causing the airbags to deploy unexpectedly and may result in injury.

Step	Operation	Values	Yes	No
1	Make sure the ignition key is in the OFF position. Wait a minute to discharge the SDM's power supply.	-	Go to Step 1	-
2	Inspect the driver's head curtain airbag connector and wiring. Is the wiring damaged?	-	Replace airbag wiring.	Go to Step 3
3	Make sure the ignition key is in the OFF position. Disconnect the driver's head curtain airbag module connector. Disconnect the sensor and diagnostic module wiring connector (SDM). Check the resistance between terminals 1 and 2 of the driver's head curtain airbag module. Is the resistance equal to	?	Go to Step 4	Replace airbag wiring.
4	Replace SDM. Perform the BCM reprogramming procedure to have the BCM relearn the new SDM ID. Make sure the ignition key is in the ON position. Clear the DTC using a scan tool. Perform the Airbag System Diagnostic System Check (SIR). Has the diagnostic trouble code been removed?	-	The system is normal.	Replace driver's head curtain airbag module.

Attention! Sensor and diagnostic module (SDM) can maintain sufficient voltage to deploy the airbags and pretensioners for 1 minute after the ignition is turned off and the fuse has been removed. If the airbags and pretensioners are not disconnected, do not start service until one minute has passed after disconnecting power from the SDM. Failure to do so may result in injury.

Attention! During maintenance, handle the sensing and diagnostics module (SDM) very careful. Do not hit or shake the SDM. Never connect power to the airbag system (SIR), if the SDM is not hardwired to the vehicle. To make the airbag system (SIR) is working correctly, all SDM sensor and diagnostic module mounting bolts must be properly tightened, and the arrow on the SDM must point towards the front of the vehicle. If the SDM is not securely attached to the vehicle, the enabled module may deploy, causing the airbags to deploy unexpectedly and may result in injury.

Step	Operation	Values	Yes	No
1	Make sure the ignition key is in the OFF position. Wait a minute to discharge the SDM's power supply.	-	Go to Step 2	-
2	Inspect the driver head curtain airbag module connector and wiring. Is the wiring damaged?	-	Replace airbag wiring.	Go to Step 3
3	Make sure the ignition key is in the OFF position. Disconnect the driver's head curtain airbag module connector. Disconnect the sensor and diagnostic module wiring connector (SDM). Check the resistance between the driver head curtain airbag module high and low wires and ground. Resistance above 50 kOhm?	50ohm	Go to Step 4	Replace airbag wiring.
4	Replace SDM. Perform the BCM reprogramming procedure to have the BCM relearn the new SDM ID. Make sure the ignition key is in the ON position. Clear the DTC using a scan tool. Perform the Airbag System Diagnostic System Check (SIR). Has the diagnostic trouble code been removed?	-	The system is normal.	Replace driver's head curtain airbag module.

Attention! Sensor and diagnostic module (SDM) can maintain sufficient voltage to deploy the airbags and pretensioners for 1 minute after the ignition is turned off and the fuse has been removed. If the airbags and pretensioners are not disconnected, do not start service until one minute has passed after disconnecting power from the SDM. Failure to do so may result in injury.

Attention! During maintenance, handle the sensing and diagnostics module (SDM) very careful. Do not hit or shake the SDM. Never connect power to the airbag system (SIR), if the SDM is not hardwired to the vehicle. To make the airbag system (SIR) is working correctly, all SDM sensor and diagnostic module mounting bolts must be properly tightened, and the arrow on the SDM must point towards the front of the vehicle. If the SDM is not securely attached to the vehicle, the enabled module may deploy, causing the airbags to deploy unexpectedly and may result in injury.

Step	Operation	Values	Yes	No
1	Make sure the ignition key is in the OFF position. Wait a minute to discharge the SDM's power supply.	-	Go to Step 2	-
2	Inspect the driver head curtain airbag module connector and wiring. Is the wiring damaged?	-	Replace airbag wiring.	Go to Step 3
3	Make sure the ignition key is in the OFF position. Disconnect the driver's head curtain airbag module connector. Disconnect the sensor and diagnostic module wiring connector (SDM). Check the resistance between the driver head curtain airbag module high and low wires and battery voltage. Resistance above 50 kOhm?	50ohm	Go to Step 4	Replace airbag wiring.
4	Replace SDM. Perform the BCM reprogramming procedure to have the BCM relearn the new SDM ID. Make sure the ignition key is in the ON position. Clear the DTC using a scan tool. Perform the Airbag System Diagnostic System Check (SIR). Has the diagnostic trouble code been removed?	-	The system is normal.	Replace driver's head curtain airbag module.

• Too high or too low resistance - Front passenger airbag deployment circuit resistance above 3.54 ohms or low 1.77 ohms.
• chain break - Passenger's front airbag deployment high and low wires.
• Short to battery voltage or short to ground - Short to battery voltage or ground on the front passenger airbag deployment circuit.

Attention! Sensor and diagnostic module (SDM) can maintain sufficient voltage to deploy the airbags and pretensioners for 1 minute after the ignition is turned off and the fuse has been removed. If the airbags and pretensioners are not disconnected, do not start service until one minute has passed after disconnecting power from the SDM. Failure to do so may result in injury.

Attention! During maintenance, handle the sensing and diagnostics module (SDM) very careful. Do not hit or shake the SDM. Never connect power to the airbag system (SIR), if the SDM is not hardwired to the vehicle. To make the airbag system (SIR) is working correctly, all SDM sensor and diagnostic module mounting bolts must be properly tightened, and the arrow on the SDM must point towards the front of the vehicle. If the SDM is not securely attached to the vehicle, the enabled module may deploy, causing the airbags to deploy unexpectedly and may result in injury.

Step	Operation	Values	Yes	No
1	Make sure the ignition key is in the OFF position. Wait a minute to discharge the sensing and diagnostic module power supply.	-	Go to Step 2	-
2	Inspect the passenger front airbag connector and wiring. Connector disabled?	-	Connect the connector and go to Step 1	Go to Step 3
3	Make sure the ignition key is in the OFF position. Disconnect the passenger's front airbag module connector. Disconnect the sensor and diagnostic module wiring connector (SDM). Check the resistance between terminals 10, 11 of the SDM and terminals 2, 1 of the passenger's front airbag module. Resistance close to 0 (zero)?	? 0 ohm	Go to Step 4	Replace airbag wiring.
4	Replace SDM. Perform the BCM reprogramming procedure to have the BCM relearn the new SDM ID. Make sure the ignition key is in the ON position. Clear the DTC using a scan tool. Perform the Airbag System Diagnostic System Check (SIR). Has the diagnostic trouble code been removed?	-	The system is normal.	Replace the passenger's front airbag module.

Attention! Sensor and diagnostic module (SDM) can maintain sufficient voltage to deploy the airbags and pretensioners for 1 minute after the ignition is turned off and the fuse has been removed. If the airbags and pretensioners are not disconnected, do not start service until one minute has passed after disconnecting power from the SDM. Failure to do so may result in injury.

Attention! During maintenance, handle the sensing and diagnostics module (SDM) very careful. Do not hit or shake the SDM. Never connect power to the airbag system (SIR), if the SDM is not hardwired to the vehicle. To make the airbag system (SIR) is working correctly, all SDM sensor and diagnostic module mounting bolts must be properly tightened, and the arrow on the SDM must point towards the front of the vehicle. If the SDM is not securely attached to the vehicle, the enabled module may deploy, causing the airbags to deploy unexpectedly and may result in injury.

Step	Operation	Values	Yes	No
1	Make sure the ignition key is in the OFF position. Wait a minute to discharge the SDM's power supply.	-	Go to Step 2	-
2	Inspect the passenger front airbag connector and wiring. Is the airbag wiring damaged?	-	Replace airbag wiring.	Go to Step 3
3	Make sure the ignition key is in the OFF position. Disconnect the passenger's front airbag module connector. Disconnect the sensor and diagnostic module wiring connector (SDM). Check the resistance between terminals 2 and 1 of the passenger's front airbag module. Is the resistance equal to	?	Go to Step 4	Replace airbag wiring.
4	Replace SDM. Perform the BCM reprogramming procedure to have the BCM relearn the new SDM ID. Make sure the ignition key is in the ON position. Clear the DTC using a scan tool. Perform the Airbag System Diagnostic System Check (SIR). Has the diagnostic trouble code been removed?	-	The system is normal.	Replace the passenger's front airbag module.

Attention! Sensor and diagnostic module (SDM) can maintain sufficient voltage to deploy the airbags and pretensioners for 1 minute after the ignition is turned off and the fuse has been removed. If the airbags and pretensioners are not disconnected, do not start service until one minute has passed after disconnecting power from the SDM. Failure to do so may result in injury.

Attention! During maintenance, handle the sensing and diagnostics module (SDM) very careful. Do not hit or shake the SDM. Never connect power to the airbag system (SIR), if the SDM is not hardwired to the vehicle. To make the airbag system (SIR) is working correctly, all SDM sensor and diagnostic module mounting bolts must be properly tightened, and the arrow on the SDM must point towards the front of the vehicle. If the SDM is not securely attached to the vehicle, the enabled module may deploy, causing the airbags to deploy unexpectedly and may result in injury.

Step	Operation	Values	Yes	No
1	Make sure the ignition key is in the OFF position. Wait a minute to discharge the SDM's power supply.	-	Go to Step 2	-
2	Inspect the passenger front airbag connector and wiring. Is the wiring damaged?	-	Replace airbag wiring.	Go to Step 3
3	Make sure the ignition key is in the OFF position. Disconnect the passenger's front airbag module connector. Disconnect the sensor and diagnostic module wiring connector (SDM). Check the resistance between the passenger's front airbag module high and low terminals and ground. Resistance above 50 kOhm?	50ohm	Go to Step 4	Replace airbag wiring.
4	Replace SDM. Perform the BCM reprogramming procedure to have the BCM relearn the new SDM ID. Make sure the ignition key is in the ON position. Clear the DTC using a scan tool. Perform the Airbag System Diagnostic System Check (SIR). Has the diagnostic trouble code been removed?	-	The system is normal.	Replace the passenger's front airbag module.

Attention! Sensor and diagnostic module (SDM) can maintain sufficient voltage to deploy the airbags and pretensioners for 1 minute after the ignition is turned off and the fuse has been removed. If the airbags and pretensioners are not disconnected, do not start service until one minute has passed after disconnecting power from the SDM. Failure to do so may result in injury.

Attention! During maintenance, handle the sensing and diagnostics module (SDM) very careful. Do not hit or shake the SDM. Never connect power to the airbag system (SIR), if the SDM is not hardwired to the vehicle. To make the airbag system (SIR) is working correctly, all SDM sensor and diagnostic module mounting bolts must be properly tightened, and the arrow on the SDM must point towards the front of the vehicle. If the SDM is not securely attached to the vehicle, the enabled module may deploy, causing the airbags to deploy unexpectedly and may result in injury.

Step	Operation	Values	Yes	No
1	Make sure the ignition key is in the OFF position. Wait a minute to discharge the SDM's power supply.	-	Go to Step 2	-
2	Inspect the passenger front airbag connector and wiring. Is the wiring damaged?	-	Replace airbag wiring.	Go to Step 3
3	Make sure the ignition key is in the OFF position. Disconnect the passenger's front airbag module connector. Disconnect the sensor and diagnostic module wiring connector (SDM). Check the resistance between the SDM and the passenger's front air bag module high and low terminals and battery voltage. Resistance above 50 kOhm?	50ohm	Go to Step 4	Replace airbag wiring.
4	Replace SDM. Perform the BCM reprogramming procedure to have the BCM relearn the new SDM ID. Make sure the ignition key is in the ON position. Clear the DTC using a scan tool. Perform the Airbag System Diagnostic System Check (SIR). Has the diagnostic trouble code been removed?	-	The system is normal.	Replace the passenger's front airbag module.

• Too high or too low resistance - Passenger side airbag deployment resistance is greater than 3.54 ohms or less than 1.77 ohms.
• chain break - Passenger side airbag deployment high and low wires.
• Short to battery voltage or short to ground - Short to battery voltage or ground to passenger's side airbag deployment circuit.

Attention! Sensor and diagnostic module (SDM) can maintain sufficient voltage to deploy the airbags and pretensioners for 1 minute after the ignition is turned off and the fuse has been removed. If the airbags and pretensioners are not disconnected, do not start service until one minute has passed after disconnecting power from the SDM. Failure to do so may result in injury.

Attention! During maintenance, handle the sensing and diagnostics module (SDM) very careful. Do not hit or shake the SDM. Never connect power to the airbag system (SIR), if the SDM is not hardwired to the vehicle. To make the airbag system (SIR) is working correctly, all SDM sensor and diagnostic module mounting bolts must be properly tightened, and the arrow on the SDM must point towards the front of the vehicle. If the SDM is not securely attached to the vehicle, the enabled module may deploy, causing the airbags to deploy unexpectedly and may result in injury.

Step	Operation	Values	Yes	No
1	Make sure the ignition key is in the OFF position. Wait a minute to discharge the SDM's power supply.	-	Go to Step 2	-
2	Inspect the passenger side airbag connector and wiring. Connector disabled?	-	Connect the connector and go to Step 1	Go to Step 3
3	Make sure the ignition key is in the OFF position. Disconnect the passenger side airbag module connector. Disconnect the sensor and diagnostic module wiring connector (SDM). Check the resistance between terminals 2, 1 of the passenger side airbag module and terminals 14, 15 of the SDM. Resistance close to 0 (zero)?	? 0 ohm	Go to Step 4	Replace airbag wiring.
4	Replace SDM. Perform the BCM reprogramming procedure to have the BCM relearn the new SDM ID. Make sure the ignition key is in the ON position. Clear the diagnostic trouble code using a scan tool Perform a Diagnostic System Check on the Airbag System (SIR). Has the diagnostic trouble code been removed?	-	The system is normal.	Replace the passenger side airbag module.

Attention! Sensor and diagnostic module (SDM) can maintain sufficient voltage to deploy the airbags and pretensioners for 1 minute after the ignition is turned off and the fuse has been removed. If the airbags and pretensioners are not disconnected, do not start service until one minute has passed after disconnecting power from the SDM. Failure to do so may result in injury.

Attention! During maintenance, handle the sensing and diagnostics module (SDM) very careful. Do not hit or shake the SDM. Never connect power to the airbag system (SIR), if the SDM is not hardwired to the vehicle. To make the airbag system (SIR) is working correctly, all SDM sensor and diagnostic module mounting bolts must be properly tightened, and the arrow on the SDM must point towards the front of the vehicle. If the SDM is not securely attached to the vehicle, the enabled module may deploy, causing the airbags to deploy unexpectedly and may result in injury.

Step	Operation	Values	Yes	No
1	Make sure the ignition key is in the OFF position. Wait a minute to discharge the SDM's power supply.	-	Go to Step 2	-
2	Inspect the passenger side airbag connector and wiring. Is the wiring damaged?	-	Replace airbag wiring.	Go to Step 3
3	Make sure the ignition key is in the OFF position. Disconnect the passenger side airbag module connector. Disconnect the sensor and diagnostic module connector (SDM). Check the resistance between terminals 1 and 2 of the passenger side airbag module. Is the resistance equal to	?	Go to Step 4	Replace airbag wiring.
4	Replace SDM. Perform the BCM reprogramming procedure to have the BCM relearn the new SDM ID. Make sure the ignition key is in the ON position. Clear the DTC using a scan tool. Perform the Airbag System Diagnostic System Check (SIR). Has the diagnostic trouble code been removed?	-	Go to Step 4	Replace the passenger side airbag module.

Attention! Sensor and diagnostic module (SDM) can maintain sufficient voltage to deploy the airbags and pretensioners for 1 minute after the ignition is turned off and the fuse has been removed. If the airbags and pretensioners are not disconnected, do not start service until one minute has passed after disconnecting power from the SDM. Failure to do so may result in injury.

Attention! During maintenance, handle the sensing and diagnostics module (SDM) very careful. Do not hit or shake the SDM. Never connect power to the airbag system (SIR), if the SDM is not hardwired to the vehicle. To make the airbag system (SIR) is working correctly, all SDM sensor and diagnostic module mounting bolts must be properly tightened, and the arrow on the SDM must point towards the front of the vehicle. If the SDM is not securely attached to the vehicle, the enabled module may deploy, causing the airbags to deploy unexpectedly and may result in injury.

Step	Operation	Values	Yes	No
1	Make sure the ignition key is in the OFF position. Wait a minute to discharge the SDM's power supply.	-	Go to Step 2	-
2	Inspect the passenger side airbag connector and wiring. Is the wiring damaged?	-	Replace airbag wiring.	Go to Step 3
3	Make sure the ignition key is in the OFF position. Disconnect the passenger side airbag module connector. Disconnect the sensor and diagnostic module connector (SDM). Check the resistance between the passenger side airbag module high and low terminals and ground. Resistance above 50 kOhm?	50ohm	Go to Step 4	Replace airbag wiring.
4	Replace SDM. Perform the BCM reprogramming procedure to have the BCM relearn the new SDM ID. Make sure the ignition key is in the ON position. Clear the DTC using a scan tool. Perform the Airbag System Diagnostic System Check (SIR). Has the diagnostic trouble code been removed?	-	The system is normal.	Replace the passenger side airbag module.

Attention! Sensor and diagnostic module (SDM) can maintain sufficient voltage to deploy the airbags and pretensioners for 1 minute after the ignition is turned off and the fuse has been removed. If the airbags and pretensioners are not disconnected, do not start service until one minute has passed after disconnecting power from the SDM. Failure to do so may result in injury.

Attention! During maintenance, handle the sensing and diagnostics module (SDM) very careful. Do not hit or shake the SDM. Never connect power to the airbag system (SIR), if the SDM is not hardwired to the vehicle. To make the airbag system (SIR) is working correctly, all SDM sensor and diagnostic module mounting bolts must be properly tightened, and the arrow on the SDM must point towards the front of the vehicle. If the SDM is not securely attached to the vehicle, the enabled module may deploy, causing the airbags to deploy unexpectedly and may result in injury.

Step	Operation	Values	Yes	No
1	Make sure the ignition key is in the OFF position. Wait a minute to discharge the SDM's power supply.	-	Go to Step 2	-
2	Inspect the passenger side airbag connector and wiring. Is the wiring damaged?	-	Replace airbag wiring.	Go to Step 3
3	Make sure the ignition key is in the OFF position. Disconnect the passenger side airbag module connector. Disconnect the sensor and diagnostic module connector (SDM). Check the resistance between the high and low terminals of the passenger side airbag module and the battery. Resistance above 50 kOhm?	50ohm	Go to Step 4	Replace airbag wiring.
4	Replace SDM. Perform the BCM reprogramming procedure to have the BCM relearn the new SDM ID. Make sure the ignition key is in the ON position. Clear the DTC using a scan tool. Perform the Airbag System Diagnostic System Check (SIR). Has the diagnostic trouble code been removed?	-	The system is normal.	Replace the passenger side airbag module.

• Too high or too low resistance - The resistance of the passenger seat belt pretensioner deployment circuit is greater than 3.54 ohms or less than 1.77 ohms.
• chain break - Passenger belt pretensioner deployment circuit high and low wires.
• Short to battery voltage or short to ground - Short to battery voltage or ground on the passenger seat belt pretensioner deployment circuit.

Attention! Sensor and diagnostic module (SDM) can maintain sufficient voltage to deploy the airbags and pretensioners for 1 minute after the ignition is turned off and the fuse has been removed. If the airbags and pretensioners are not disconnected, do not start service until one minute has passed after disconnecting power from the SDM. Failure to do so may result in injury.

Attention! During maintenance, handle the sensing and diagnostics module (SDM) very careful. Do not hit or shake the SDM. Never connect power to the airbag system (SIR), if the SDM is not hardwired to the vehicle. To make the airbag system (SIR) is working correctly, all SDM sensor and diagnostic module mounting bolts must be properly tightened, and the arrow on the SDM must point towards the front of the vehicle. If the SDM is not securely attached to the vehicle, the enabled module may deploy, causing the airbags to deploy unexpectedly and may result in injury.

Step	Operation	Values	Yes	No
1	Make sure the ignition key is in the OFF position. Wait a minute to discharge the SDM's power supply.	-	Go to Step 2	-
2	Inspect the connector and wiring for the passenger's seat belt pretensioner. Connector disabled?	-	Connect the connector and go to Step 1	Go to Step 3
3	Make sure the ignition key is in the OFF position. Disconnect the passenger seat belt pretensioner connector. Disconnect the sensor and diagnostic module wiring connector (SDM). Check the resistance between terminals 6, 7 of the SDM and terminals 2, 1 of the passenger's seat belt pretensioner. Resistance close to 0 (zero)?	? 0 ohm	Go to Step 4	Replace airbag wiring.
4	Replace SDM. Perform the BCM reprogramming procedure to have the BCM relearn the new SDM ID. Make sure the ignition key is in the ON position. Clear the DTC using a scan tool. Perform the Airbag System Diagnostic System Check (SIR). Has the diagnostic trouble code been removed?	-	The system is normal.	Replace the passenger's seat belt pretensioner.

Attention! Sensor and diagnostic module (SDM) can maintain sufficient voltage to deploy the airbags and pretensioners for 1 minute after the ignition is turned off and the fuse has been removed. If the airbags and pretensioners are not disconnected, do not start service until one minute has passed after disconnecting power from the SDM. Failure to do so may result in injury.

Attention! During maintenance, handle the sensing and diagnostics module (SDM) very careful. Do not hit or shake the SDM. Never connect power to the airbag system (SIR), if the SDM is not hardwired to the vehicle. To make the airbag system (SIR) is working correctly, all SDM sensor and diagnostic module mounting bolts must be properly tightened, and the arrow on the SDM must point towards the front of the vehicle. If the SDM is not securely attached to the vehicle, the enabled module may deploy, causing the airbags to deploy unexpectedly and may result in injury.

Step	Operation	Values	Yes	No
1	Make sure the ignition key is in the OFF position. Wait a minute to discharge the SDM's power supply.	-	Go to Step 1	-
2	Inspect the connector and wiring for the passenger's seat belt pretensioner. Is the wiring damaged?	-	Replace airbag wiring.	Go to Step 3
3	Make sure the ignition key is in the OFF position. Disconnect the passenger seat belt pretensioner connector. Disconnect the sensor and diagnostic module wiring connector (SDM). Check the resistance between terminals 1 and 2 of the passenger's seat belt pretensioner. Is the resistance equal to	?	Go to Step 4	Replace airbag wiring.
4	Replace SDM. Perform the BCM reprogramming procedure to have the BCM relearn the new SDM ID. Make sure the ignition key is in the ON position. Clear the DTC using a scan tool. Perform the Airbag System Diagnostic System Check (SIR). Has the diagnostic trouble code been removed?	-	The system is normal.	Replace the passenger's seat belt pretensioner.

Attention! Sensor and diagnostic module (SDM) can maintain sufficient voltage to deploy the airbags and pretensioners for 1 minute after the ignition is turned off and the fuse has been removed. If the airbags and pretensioners are not disconnected, do not start service until one minute has passed after disconnecting power from the SDM. Failure to do so may result in injury.

Attention! During maintenance, handle the sensing and diagnostics module (SDM) very careful. Do not hit or shake the SDM. Never connect power to the airbag system (SIR), if the SDM is not hardwired to the vehicle. To make the airbag system (SIR) is working correctly, all SDM sensor and diagnostic module mounting bolts must be properly tightened, and the arrow on the SDM must point towards the front of the vehicle. If the SDM is not securely attached to the vehicle, the enabled module may deploy, causing the airbags to deploy unexpectedly and may result in injury.

Step	Operation	Values	Yes	No
1	Make sure the ignition key is in the OFF position. Wait a minute to discharge the SDM's power supply.	-	Go to Step 2	-
2	Inspect the connector and wiring for the passenger's seat belt pretensioner. Is the wiring damaged?	-	Replace airbag wiring.	Go to Step 3
3	Make sure the ignition key is in the OFF position. Disconnect the passenger seat belt pretensioner connector. Disconnect the sensor and diagnostic module wiring connector (SDM). Check the resistance between the passenger's pretensioner high and low wires and ground. Resistance above 50 kOhm?	50ohm	Go to Step 4	Replace airbag wiring.
4	Replace SDM. Perform the BCM reprogramming procedure to have the BCM relearn the new SDM ID. Make sure the ignition key is in the ON position. Clear the DTC using a scan tool. Perform the Airbag System Diagnostic System Check (SIR). Has the diagnostic trouble code been removed?	-	The system is normal.	Replace the passenger's seat belt pretensioner.

Attention! Sensor and diagnostic module (SDM) can maintain sufficient voltage to deploy the airbags and pretensioners for 1 minute after the ignition is turned off and the fuse has been removed. If the airbags and pretensioners are not disconnected, do not start service until one minute has passed after disconnecting power from the SDM. Failure to do so may result in injury.

Attention! During maintenance, handle the sensing and diagnostics module (SDM) very careful. Do not hit or shake the SDM. Never connect power to the airbag system (SIR), if the SDM is not hardwired to the vehicle. To make the airbag system (SIR) is working correctly, all SDM sensor and diagnostic module mounting bolts must be properly tightened, and the arrow on the SDM must point towards the front of the vehicle. If the SDM is not securely attached to the vehicle, the enabled module may deploy, causing the airbags to deploy unexpectedly and may result in injury.

Step	Operation	Values	Yes	No
1	Make sure the ignition key is in the OFF position. Wait a minute to discharge the SDM's power supply.	-	Go to Step 2	-
2	Inspect the connector and wiring for the passenger's seat belt pretensioner. Is the wiring damaged?	-	Replace airbag wiring.	Go to Step 3
3	Make sure the ignition key is in the OFF position. Disconnect the passenger seat belt pretensioner connector. Disconnect the sensor and diagnostic module wiring connector (SDM). Check the resistance between the high and low wires of the passenger's pretensioner and the battery. Resistance above 50 kOhm?	50ohm	Go to Step 4	Replace airbag wiring.
4	Replace SDM. Perform the BCM reprogramming procedure to have the BCM relearn the new SDM ID. Make sure the ignition key is in the ON position. Clear the DTC using a scan tool. Perform the Airbag System Diagnostic System Check (SIR). Has the diagnostic trouble code been removed?	-	The system is normal.	Replace the passenger's seat belt pretensioner.

• Too high or too low resistance - Passenger's head curtain airbag deployment circuit resistance is greater than 3.54 ohms or less than 1.77 ohms.
• chain break - High and low wires for the passenger's head curtain actuation circuit.
• Short to battery voltage or short to ground - A short to battery voltage or ground on the passenger's head curtain deployment circuit.

Attention! Sensor and diagnostic module (SDM) can maintain sufficient voltage to deploy the airbags and pretensioners for 1 minute after the ignition is turned off and the fuse has been removed. If the airbags and pretensioners are not disconnected, do not start service until one minute has passed after disconnecting power from the SDM. Failure to do so may result in injury.

Attention! During maintenance, handle the sensing and diagnostics module (SDM) very careful. Do not hit or shake the SDM. Never connect power to the airbag system (SIR), if the SDM is not hardwired to the vehicle. To make the airbag system (SIR) is working correctly, all SDM sensor and diagnostic module mounting bolts must be properly tightened, and the arrow on the SDM must point towards the front of the vehicle. If the SDM is not securely attached to the vehicle, the enabled module may deploy, causing the airbags to deploy unexpectedly and may result in injury.

Step	Operation	Values	Yes	No
1	Make sure the ignition key is in the OFF position. Wait a minute to discharge the sensing and diagnostic module power supply.	-	Go to Step 2	-
2	Inspect the passenger head curtain airbag connector and wiring. Connector disabled?	-	Connect the connector and go to Step 1	Go to Step 3
3	Make sure the ignition key is in the OFF position. Disconnect the passenger head curtain airbag module connector. Disconnect the sensor and diagnostic module wiring connector (SDM). Check the resistance between SDM terminals 18, 19 and passenger head curtain airbag terminals 1, 2. Resistance close to 0 (zero)?	? 0 ohm	Go to Step 4	Replace airbag wiring.
4	Replace SDM. Perform the BCM reprogramming procedure to have the BCM relearn the new SDM ID. Make sure the ignition key is in the ON position. Clear the DTC using a scan tool. Perform the Airbag System Diagnostic System Check (SIR). Has the diagnostic trouble code been removed?	-	The system is normal.	Replace the passenger head curtain airbag module.

Attention! Sensor and diagnostic module (SDM) can maintain sufficient voltage to deploy the airbags and pretensioners for 1 minute after the ignition is turned off and the fuse has been removed. If the airbags and pretensioners are not disconnected, do not start service until one minute has passed after disconnecting power from the SDM. Failure to do so may result in injury.

Attention! During maintenance, handle the sensing and diagnostics module (SDM) very careful. Do not hit or shake the SDM. Never connect power to the airbag system (SIR), if the SDM is not hardwired to the vehicle. To make the airbag system (SIR) is working correctly, all SDM sensor and diagnostic module mounting bolts must be properly tightened, and the arrow on the SDM must point towards the front of the vehicle. If the SDM is not securely attached to the vehicle, the enabled module may deploy, causing the airbags to deploy unexpectedly and may result in injury.

Step	Operation	Values	Yes	No
1	Make sure the ignition key is in the OFF position. Wait a minute to discharge the SDM's power supply.	-	Go to Step 2	-
2	Inspect the passenger head curtain airbag connector and wiring. Is the airbag wiring damaged?	-	Replace airbag wiring.	Go to Step 3
3	Make sure the ignition key is in the OFF position. Disconnect the passenger head curtain airbag module connector. Disconnect the sensor and diagnostic module wiring connector (SDM). Check the resistance between terminals 1 and 2 of the passenger head curtain airbag module. Is the resistance equal to	?	Go to Step 4	Replace airbag wiring.
4	Replace SDM. Perform the BCM reprogramming procedure to have the BCM relearn the new SDM ID. Make sure the ignition key is in the ON position. Clear the DTC using a scan tool. Perform the Airbag System Diagnostic System Check (SIR). Has the diagnostic trouble code been removed?	-	The system is normal.	Replace the passenger head curtain airbag module.

Attention! Sensor and diagnostic module (SDM) can maintain sufficient voltage to deploy the airbags and pretensioners for 1 minute after the ignition is turned off and the fuse has been removed. If the airbags and pretensioners are not disconnected, do not start service until one minute has passed after disconnecting power from the SDM. Failure to do so may result in injury.

Attention! During maintenance, handle the sensing and diagnostics module (SDM) very careful. Do not hit or shake the SDM. Never connect power to the airbag system (SIR), if the SDM is not hardwired to the vehicle. To make the airbag system (SIR) is working correctly, all SDM sensor and diagnostic module mounting bolts must be properly tightened, and the arrow on the SDM must point towards the front of the vehicle. If the SDM is not securely attached to the vehicle, the enabled module may deploy, causing the airbags to deploy unexpectedly and may result in injury.

Step	Operation	Values	Yes	No
1	Make sure the ignition key is in the OFF position. Wait a minute to discharge the SDM's power supply.	-	Go to Step 2	-
2	Inspect the passenger head curtain airbag connector and wiring. Is the wiring damaged?	-	Replace airbag wiring.	Go to Step 3
3	Make sure the ignition key is in the OFF position. Disconnect the passenger head curtain airbag module connector. Disconnect the sensor and diagnostic module wiring connector (SDM). Check the resistance between the passenger head curtain airbag module high and low terminals and ground Resistance above 50 kOhm?	50ohm	Go to Step 4	Replace airbag wiring.
4	Replace SDM. Perform the BCM reprogramming procedure to have the BCM relearn the new SDM ID. Make sure the ignition key is in the ON position. Clear the DTC using a scan tool. Perform the Airbag System Diagnostic System Check (SIR). Has the diagnostic trouble code been removed?	-	The system is normal.	Replace the passenger head curtain airbag module.

Attention! Sensor and diagnostic module (SDM) can maintain sufficient voltage to deploy the airbags and pretensioners for 1 minute after the ignition is turned off and the fuse has been removed. If the airbags and pretensioners are not disconnected, do not start service until one minute has passed after disconnecting power from the SDM. Failure to do so may result in injury.

Attention! During maintenance, handle the sensing and diagnostics module (SDM) very careful. Do not hit or shake the SDM. Never connect power to the airbag system (SIR), if the SDM is not hardwired to the vehicle. To make the airbag system (SIR) is working correctly, all SDM sensor and diagnostic module mounting bolts must be properly tightened, and the arrow on the SDM must point towards the front of the vehicle. If the SDM is not securely attached to the vehicle, the enabled module may deploy, causing the airbags to deploy unexpectedly and may result in injury.

Step	Operation	Values	Yes	No
1	Make sure the ignition key is in the OFF position. Wait a minute to discharge the SDM's power supply.	-	Go to Step 2	-
2	Inspect the passenger head curtain airbag connector and wiring. Is the wiring damaged?	-	Replace airbag wiring.	Go to Step 3
3	Make sure the ignition key is in the OFF position. Disconnect the passenger head curtain airbag module connector. Disconnect the sensor and diagnostic module wiring connector (SDM). Check the resistance between the SDM module and the high and low terminals of the passenger head curtain airbag module and battery voltage. Resistance above 50 kOhm?	50ohm	Go to Step 4	Replace airbag wiring.
4	Replace SDM. Perform the BCM reprogramming procedure to have the BCM relearn the new SDM ID. Make sure the ignition key is in the ON position. Clear the DTC using a scan tool. Perform the Airbag System Diagnostic System Check (SIR). Has the diagnostic trouble code been removed?	-	The system is normal.	Replace the passenger head curtain airbag module.

Important: Seat belt pretensioners may deploy in collisions that do not require deployment of the front or side airbags. The SDM is capable of withstanding a 1-time deployment of the pretensioner, or 1-time deployment of the front or side airbags. After the front airbags are deployed, DTC B0052 becomes a lock code that cannot be cleared.

• The SDM detects a frontal collision of sufficient severity to require deployment of the front airbags and/or seat belt pretensioners.

• DTC B0052 is a lock code. This code cannot be cleared with a scan tool. Replace the SDM after following the instructions in the following diagnostic table.

Attention! Sensor and diagnostic module (SDM) can maintain sufficient voltage to deploy the airbags and pretensioners for 1 minute after the ignition is turned off and the fuse has been removed. If the airbags and pretensioners are not disconnected, do not start service until one minute has passed after disconnecting power from the SDM. Failure to do so may result in injury.

Attention! During maintenance, handle the sensor and diagnostic module (SDM) very careful. Do not hit or shake the SDM. Never connect power to the airbag system (SIR), if the SDM is not hardwired to the vehicle. To make the airbag system (SIR) is working correctly, all SDM sensor and diagnostic module mounting bolts must be properly tightened, and the arrow on the SDM must point towards the front of the vehicle. If the SDM is not securely attached to the vehicle, the enabled module may deploy, causing the airbags to deploy unexpectedly and may result in injury.

Attention! Never measure the airbag module resistance with an ohmmeter. An ohmmeter battery can cause the airbag to deploy, resulting in injury.

Step	Operation	Values	Yes	No
1	Has a diagnostic system check been performed?	-	Go to Step 2	Go to item «Checking the SIR Diagnostic System»
2	Set the ignition to the OFF position. Check the vehicle for signs of deployment of the front airbags or pretensioner. Does the vehicle show any signs of deployment of the front airbags or pretensioner?	-	Go to Step 4	Go to Step 3
3	Check the front of the vehicle and chassis for signs of collision/impact. Does the vehicle show any signs of a collision/impact?	-	Go to Step 4	Go to Step 5
4	Install the diagnostic tool. Using a scan tool, observe the SIR DTC display. If there is a history DTC, refer to each diagnostic table for that particular code and diagnose the problem. Replace components and carry out the checks required after an accident. See «Repairs and inspections required after an accident»in this section. Is the action completed? Does the vehicle show any signs of deployment of the front airbags or pretensioner?	-	Go to Step 5	-
5	Using a scan tool, attempt to clear DTC B0052. DTC B0052 cleared successfully?	-	Go to Step 7	Go to Step 6
6	Replace SDM. Perform the BCM reprogramming procedure to have the BCM relearn the new SDM ID. Is the replacement completed?	-	Go to Step 7	-
7	Reconnect all components of the SIR system. Use a scan tool to clear any existing trouble codes. Run the vehicle under conditions where the ignition voltage is within the normal range (9~16V). Does the fault code re-enter?	-	Go to Step 2	System OK

Important: Seat belt pretensioners may deploy in collisions that do not require deployment of the front or side airbags. The SDM is capable of withstanding 1 pretensioner deployment, or 1 front or side airbag deployment. After the front airbags are deployed, DTCs B0052 and B0053 become lock codes that cannot be cleared.

• The SDM detects a frontal collision of sufficient severity to require deployment of the front airbags and/or seat belt pretensioners.

• DTC B0053 is a lock code. This code cannot be cleared with a scan tool. Replace the SDM after following the instructions in the following diagnostic table.

Attention! Sensor and diagnostic module (SDM) can maintain sufficient voltage to deploy the airbags and pretensioners for 1 minute after the ignition is turned off and the fuse has been removed. If the airbags and pretensioners are not disconnected, do not start service until one minute has passed after disconnecting power from the SDM. Failure to do so may result in injury.

Attention! During maintenance, handle the sensor and diagnostic module (SDM) very careful. Do not hit or shake the SDM. Never connect power to the airbag system (SIR), if the SDM is not hardwired to the vehicle. To make the airbag system (SIR) is working correctly, all SDM sensor and diagnostic module mounting bolts must be properly tightened, and the arrow on the SDM must point towards the front of the vehicle. If the SDM is not securely attached to the vehicle, the enabled module may deploy, causing the airbags to deploy unexpectedly and may result in injury.

Attention! Never measure the airbag module resistance with an ohmmeter. An ohmmeter battery can cause the airbag to deploy, resulting in injury.

Step	Operation	Values	Yes	No
1	Has a diagnostic system check been performed?	-	Go to Step 2	Go to item «Checking the SIR Diagnostic System»
2	Set the ignition to the OFF position. Check the vehicle for signs of deployment of the front airbags or pretensioner. Does the vehicle show any signs of deployment of the front airbags or pretensioner?	-	Go to Step 4	Go to Step 3
3	Check the front of the vehicle and chassis for signs of collision/impact. Does the vehicle show any signs of a collision/impact?	-	Go to Step 4	Go to Step 5
4	Install the diagnostic tool. Using a scan tool, observe the SIR DTC display. If there is a history DTC, refer to each diagnostic table for that particular code and diagnose the problem. Replace components and carry out the checks required after an accident. See «Repairs and inspections required after an accident»in this section. Is the action completed? Does the vehicle show any signs of deployment of the front airbags or pretensioner?	-	Go to Step 5	-
5	Using a scan tool, attempt to clear DTC B0053. DTC B0053 cleared successfully?	-	Go to Step 7	Go to Step 6
6	Replace SDM. Perform the BCM reprogramming procedure to have the BCM relearn the new SDM ID. Is the replacement completed?	-	Go to Step 7	-
7	Reconnect all components of the SIR system. Use a scan tool to clear any existing trouble codes. Run the vehicle under conditions where the ignition voltage is within the normal range (9~16V). Does the fault code re-enter?	-	Go to Step 2	System OK

Important: Seat belt pretensioners may deploy in collisions that do not require deployment of the front or side airbags. The SDM is capable of withstanding a 1-time deployment of the pretensioner, or 1-time deployment of the front or side airbags. After the side airbags are deployed, DTC B0055 becomes a lock code that cannot be cleared. Replace the SDM after following the instructions in the diagnostic table.

• The SDM module detects a side collision of sufficient severity to require deployment of the side airbags.

• DTC B0055 is a lock code. This code cannot be cleared with a scan tool. Replace the SDM after following the instructions in the following diagnostic table.

Attention! Sensor and diagnostic module (SDM) can maintain sufficient voltage to deploy the airbags and pretensioners for 1 minute after the ignition is turned off and the fuse has been removed. If the airbags and pretensioners are not disconnected, do not start service until one minute has passed after disconnecting power from the SDM. Failure to do so may result in injury.

Attention! During maintenance, handle the sensor and diagnostic module (SDM) very careful. Do not hit or shake the SDM. Never connect power to the airbag system (SIR), if the SDM is not hardwired to the vehicle. To make the airbag system (SIR) is working correctly, all SDM sensor and diagnostic module mounting bolts must be properly tightened, and the arrow on the SDM must point towards the front of the vehicle. If the SDM is not securely attached to the vehicle, the enabled module may deploy, causing the airbags to deploy unexpectedly and may result in injury.

Attention! Never measure the airbag module resistance with an ohmmeter. An ohmmeter battery can cause the airbag to deploy, resulting in injury.

Step	Operation	Values	Yes	No
1	Has a diagnostic system check been performed?	-	Go to Step 2	Go to item «Checking the SIR Diagnostic System»
2	Set the ignition to the OFF position. Check the vehicle for signs of deploying side airbags. Does the vehicle show any signs of deploying side airbags?	-	Go to Step 4	Go to Step 3
3	Check the sides of the vehicle and chassis for signs of collision/impact. Does the vehicle show any signs of a collision/impact?	-	Go to Step 4	Go to Step 5
4	Install the diagnostic tool. Using a scan tool, observe the SIR DTC display. If there is a history DTC, refer to each diagnostic table for that particular code and diagnose the problem. Replace components and carry out the checks required after an accident. See «Repairs and inspections required after an accident»in this section. Is the action completed? Does the vehicle show any signs of deployment of the front airbags or pretensioner?	-	Go to Step 5	-
5	Using a scan tool, attempt to clear DTC B0055. DTC B0055 cleared successfully?	-	Go to Step 7	Go to Step 6
6	Replace SDM. Perform the BCM reprogramming procedure to have the BCM relearn the new SDM ID. Is the replacement completed?	-	Go to Step 7	-
7	Reconnect all components of the SIR system. Use a scan tool to clear any existing trouble codes. Run the vehicle under conditions where the ignition voltage is within the normal range (9~16V). Does the fault code re-enter?	-	Go to Step 2	System OK

• Open or short to ground/voltage in the driver SIS wiring circuit for 500 ms.
• A short to voltage in the driver SIS wiring circuit for 500 ms.
• A message with a valid ID code is not received within 5 seconds after the driver SIS is powered up.
• Status message not received.
• The SDM reset the driver SIS setting twice without detecting a message with a valid ID code.
• The SDM has received a message from the driver SIS with an ID code that does not match the ID code stored in the SDM's memory.
• The SDM has reset the driver SIS twice without detecting a message with the correct ID code.
• The SDM has received a NOK message from the driver SIS.

• Short to ground or voltage in the driver SIS sensor circuit.
• High or low resistance in the driver SIS sensor circuit.
• Wrong SIS installed in vehicle.

Attention! Sensor and diagnostic module (SDM) can maintain sufficient voltage to deploy the airbags and pretensioners for 1 minute after the ignition is turned off and the fuse has been removed. If the airbags and pretensioners are not disconnected, do not start service until one minute has passed after disconnecting power from the SDM. Failure to do so may result in injury.

Attention! During maintenance, handle the sensing and diagnostics module (SDM) very careful. Do not hit or shake the SDM. Never connect power to the airbag system (SIR), if the SDM is not hardwired to the vehicle. To make the airbag system (SIR) is working correctly, all SDM sensor and diagnostic module mounting bolts must be properly tightened, and the arrow on the SDM must point towards the front of the vehicle. If the SDM is not securely attached to the vehicle, the enabled module may deploy, causing the airbags to deploy unexpectedly and may result in injury.

Step	Operation	Values	Yes	No
1	Has a diagnostic system check been performed?	-	Go to Step 2	Go to item «Checking the SIR Diagnostic System»
2	Install the diagnostic tool. Set ignition to ON Using a scan tool, query the display for SIR system trouble codes. Does the scan tool indicate that code B0085 is current and that code B0085 is symptomatic "Internal fault/defective electronics" or "Wrong components installed"?	-	Go to Step 3	See next page
3	If the DTC has a symptom "Internal fault/defective electronics", then the driver SIS needs to be replaced. If the DTC has a symptom "Wrong components installed", check the part number of the installed driver SIS sensor. Is the installed driver SIS correct for the vehicle? (Refer to the parts catalog for the correct part number for a specific vehicle)	-	Go to Step 4	-
4	Reconnect all components of the SIR system. Use a scan tool to clear any existing DTCs. Run the vehicle under conditions where the ignition voltage is within the normal range (9~16V). Does the fault code re-enter?	-	Go to Step 5	System OK
5	Set the ignition to the OFF position. Replace SDM. Perform the BCM reprogramming procedure to have the BCM relearn the new SDM ID. Is the replacement completed?	-	Go to Step 2	System OK
6	Set ignition to ON Use a scan tool to clear any existing DTCs. Run the vehicle under conditions where the ignition voltage is within the normal range (9~16V). Does the fault code re-enter?	-	Go to Step 2	System OK

Attention! Sensor and diagnostic module (SDM) can maintain sufficient voltage to deploy the airbags and pretensioners for 1 minute after the ignition is turned off and the fuse has been removed. If the airbags and pretensioners are not disconnected, do not start service until one minute has passed after disconnecting power from the SDM. Failure to do so may result in injury.

Attention! During maintenance, handle the sensing and diagnostics module (SDM) very careful. Do not hit or shake the SDM. Never connect power to the airbag system (SIR), if the SDM is not hardwired to the vehicle. To make the airbag system (SIR) is working correctly, all SDM sensor and diagnostic module mounting bolts must be properly tightened, and the arrow on the SDM must point towards the front of the vehicle. If the SDM is not securely attached to the vehicle, the enabled module may deploy, causing the airbags to deploy unexpectedly and may result in injury.

Step	Operation	Values	Yes	No
1	Has a diagnostic system check been performed?	-	Go to Step 2	Go to item «Checking the SIR Diagnostic System»
2	Install the diagnostic tool. Set the ignition to on (ON), without starting the engine. Using a scan tool, query the display for SIR system trouble codes. Does the scan tool indicate that code B0085 is current?	-	Go to Step 10	Go to Step 3
3	Set the ignition to the OFF position. Disconnect the driver SIS sensor connector. Check the connector for damage or corrosion on both the component side and the harness side. Does the connector show any signs of damage or corrosion?	-	Go to Step 4	Go to Step 5
4	If the driver SIS connector on the component side is damaged, the driver SIS needs to be replaced. If the harness side SIS connector is damaged, the airbag wiring needs to be replaced. Is the repair completed?	-	Go to Step 11	-
5	Set the ignition to the OFF position. Disconnect the SDM module connector. Check the SDM connector for damage or corrosion on both the component side and the harness side. Does the connector show any signs of damage or corrosion?	-	Go to Step 6	Go to Step 7
6	If the component-side SDM connector is damaged, the SDM needs to be replaced. If the SDM module connector on the harness side is damaged, the airbag wiring needs to be replaced. Is the repair completed?	-	Go to Step 11	-
7	Check the resistance between SDM terminals 42, 40 and driver SIS terminals 2, 1. Resistance close to 0 (zero)?	? 0 ohm	Go to Step 8	Replace airbag wiring
8	Check the resistance between terminal 42 and 40 of the SDM. Is the resistance equal to	?	Go to Step 9	Replace airbag wiring
9	Check resistance between SDM terminal 42, 40 and ground. Check the resistance between SDM terminal 42, 40 and battery voltage. Is the resistance equal to	?	Go to Step 10	Replace airbag wiring
10	Replace driver SIS. Is the replacement completed?	-	Go to Step 11	-
11	Reconnect all components of the SIR system. Use a scan tool to clear any existing DTCs. Run the vehicle under conditions where the ignition voltage is within the normal range (9~16V). Does the fault code re-enter?	-	Go to Step 12	System OK
12	Set the ignition to the OFF position. Replace SDM. Perform the BCM reprogramming procedure to have the BCM relearn the new SDM ID. Is the replacement completed?	-	Go to Step 13	-
13	Set ignition to ON Use a scan tool to clear any existing DTCs. Run the vehicle under conditions where the ignition voltage is within the normal range (9~16V). Does the fault code re-enter?	-	Go to Step 2	System OK

• Open or short to battery ground/voltage in passenger SIS wiring circuit for 500 ms.
• A short to voltage in the passenger SIS wiring circuit for 500 ms.
• A message with a valid ID code was not received within 5 seconds of powering up the passenger SIS.
• Status message not received.
• The SDM has reset the passenger SIS setting twice without detecting a message with a valid ID code.
• The SDM has received a message from the passenger SIS with an ID code that does not match the ID code stored in the SDM's memory.
• The SDM has reset the passenger SIS setting twice without detecting a message with the correct ID code.
• The SDM has received a NOK message from the passenger SIS.

• Short to ground or voltage in the passenger SIS sensor circuit.
• High or low resistance in the passenger SIS circuit
• Wrong SIS installed in vehicle.

Attention! Sensor and diagnostic module (SDM) can maintain sufficient voltage to deploy the airbags and pretensioners for 1 minute after the ignition is turned off and the fuse has been removed. If the airbags and pretensioners are not disconnected, do not start service until one minute has passed after disconnecting power from the SDM. Failure to do so may result in injury.

Attention! During maintenance, handle the sensing and diagnostics module (SDM) very careful. Do not hit or shake the SDM. Never connect power to the airbag system (SIR), if the SDM is not hardwired to the vehicle. To make the airbag system (SIR) is working correctly, all SDM sensor and diagnostic module mounting bolts must be properly tightened, and the arrow on the SDM must point towards the front of the vehicle. If the SDM is not securely attached to the vehicle, the enabled module may deploy, causing the airbags to deploy unexpectedly and may result in injury.

Step	Operation	Values	Yes	No
1	Has a diagnostic system check been performed?	-	Go to Step 2	Go to item «Checking the SIR Diagnostic System»
2	Install the diagnostic tool. Set ignition to ON Using a scan tool, query the display for SIR system trouble codes. Does the scan tool indicate that code B0086 is current and that code B0086 is symptomatic "Internal fault/defective electronics" or "Wrong components installed"?	-	Go to Step 3	See next page
3	If the DTC has a symptom "Internal fault/defective electronics", then the passenger SIS needs to be replaced. If the DTC has a symptom "Wrong components installed", check the part number of the installed passenger SIS. Is the installed passenger SIS correct for the vehicle? (Refer to the parts catalog for the correct part number for a specific vehicle)	-	Go to Step 4	-
4	Reconnect all components of the SIR system. Use a scan tool to clear any existing DTCs. Run the vehicle under conditions where the ignition voltage is within the normal range (9~16V). Does the fault code re-enter?	-	Go to Step 5	System OK
5	Set the ignition to the OFF position. Replace SDM. Perform the BCM reprogramming procedure to have the BCM relearn the new SDM ID. Is the replacement completed?	-	Go to Step 2	System OK
6	Set ignition to ON Use a scan tool to clear any existing DTCs. Run the vehicle under conditions where the ignition voltage is within the normal range (9~16V). Does the fault code re-enter?	-	Go to Step 2	System OK

Attention! Sensor and diagnostic module (SDM) can maintain sufficient voltage to deploy the airbags and pretensioners for 1 minute after the ignition is turned off and the fuse has been removed. If the airbags and pretensioners are not disconnected, do not start service until one minute has passed after disconnecting power from the SDM. Failure to do so may result in injury.

Attention! During maintenance, handle the sensing and diagnostics module (SDM) very careful. Do not hit or shake the SDM. Never connect power to the airbag system (SIR), if the SDM is not hardwired to the vehicle. To make the airbag system (SIR) is working correctly, all SDM sensor and diagnostic module mounting bolts must be properly tightened, and the arrow on the SDM must point towards the front of the vehicle. If the SDM is not securely attached to the vehicle, the enabled module may deploy, causing the airbags to deploy unexpectedly and may result in injury.

Step	Operation	Values	Yes	No
1	Has a diagnostic system check been performed?	-	Go to Step 2	Go to item «Checking the SIR Diagnostic System»
2	Install the diagnostic tool. Set the ignition to on (ON), without starting the engine. Using a scan tool, query the display for SIR system trouble codes. Does the scan tool show code B0086 as current?	-	Go to Step 10	Go to Step 3
3	Set the ignition to the OFF position. Disconnect the passenger SIS connector. Check the connector for damage or corrosion on both the component side and the harness side. Does the connector show any signs of damage or corrosion?	-	Go to Step 4	Go to Step 5
4	If the component-side passenger SIS connector is damaged, the passenger SIS needs to be replaced. If the harness side SIS connector is damaged, the airbag wiring needs to be replaced. Is the repair completed?	-	Go to Step 11	-
5	Set the ignition to the OFF position. Disconnect the SDM module connector. Check the SDM connector for damage or corrosion on both the component side and the harness side. Does the connector show any signs of damage or corrosion?	-	Go to Step 6	Go to Step 7
6	If the component-side SDM connector is damaged, the SDM needs to be replaced. If the SDM module connector on the harness side is damaged, the airbag wiring needs to be replaced. Is the repair completed?	-	Go to Step 11	-
7	Check the resistance between SDM terminals 43, 41 and passenger SIS terminals 2, 1. Resistance close to 0 (zero)?	? 0 ohm	Go to Step 8	Replace airbag wiring
8	Check the resistance between terminal 43 and 41 of the SDM. Is the resistance equal to	?	Go to Step 9	Replace airbag wiring
9	Check the resistance between SDM terminal 43, 41 and ground. Check the resistance between SDM terminal 43, 41 and battery voltage. Is the resistance equal to	?	Go to Step 10	Replace airbag wiring
10	Replace passenger SIS. Is the replacement completed?	-	Go to Step 11	-
11	Reconnect all components of the SIR system. Use a scan tool to clear any existing DTCs. Run the vehicle under conditions where the ignition voltage is within the normal range (9~16V). Does the fault code re-enter?	-	Go to Step 12	System OK
12	Set the ignition to the OFF position. Replace SDM. Perform the BCM reprogramming procedure to have the BCM relearn the new SDM ID. Is the replacement completed?	-	Go to Step 13	-
13	Set ignition to ON Use a scan tool to clear any existing DTCs. Run the vehicle under conditions where the ignition voltage is within the normal range (9~16V). Does the fault code re-enter?	-	Go to Step 2	System OK

• The sensing and diagnostic module is not performing diagnostics. In this case, the module wiring harness must be replaced before replacing the SDM.

Attention! Sensor and diagnostic module (SDM) can maintain sufficient voltage to deploy the airbags and pretensioners for 1 minute after the ignition is turned off and the fuse has been removed. If the airbags and pretensioners are not disconnected, do not start service until one minute has passed after disconnecting power from the SDM. Failure to do so may result in injury.

Attention! During maintenance, handle the sensing and diagnostics module (SDM) very careful. Do not hit or shake the SDM. Never connect power to the airbag system (SIR), if the SDM is not hardwired to the vehicle. To make the airbag system (SIR) is working correctly, all SDM sensor and diagnostic module mounting bolts must be properly tightened, and the arrow on the SDM must point towards the front of the vehicle. If the SDM is not securely attached to the vehicle, the enabled module may deploy, causing the airbags to deploy unexpectedly and may result in injury.

• The last 4 digits of the SDM part number do not match the 4 digits stored in the BCM.
• The VIN stored in the BCM does not match the actual VIN of the vehicle.

Attention! Sensor and diagnostic module (SDM) can maintain sufficient voltage to deploy the airbags and pretensioners for 1 minute after the ignition is turned off and the fuse has been removed. If the airbags and pretensioners are not disconnected, do not start service until one minute has passed after disconnecting power from the SDM. Failure to do so may result in injury.

Attention! During maintenance, handle the sensing and diagnostics module (SDM) very careful. Do not hit or shake the SDM. Never connect power to the airbag system (SIR), if the SDM is not hardwired to the vehicle. To make the airbag system (SIR) is working correctly, all SDM sensor and diagnostic module mounting bolts must be properly tightened, and the arrow on the SDM must point towards the front of the vehicle. If the SDM is not securely attached to the vehicle, the enabled module may deploy, causing the airbags to deploy unexpectedly and may result in injury.

Step	Operation	Values	Yes	No
1	Has a diagnostic system check been performed?	-	Go to Step 2	Go to item «Checking the SIR Diagnostic System»
2	Install scan tool, request SIR DTC display. Set ignition to ON Does the scan tool indicate code B1001 is current?	-	Go to Step 3	Go to Step 10
3	Using a scan tool, verify that the body controller (BCM) the correct vehicle identification number has been programmed (VIN), corresponding to the one on the vehicle identification plate. Is the correct VIN number programmed into the BCM?	-	Go to Step 5	Go to Step 4
4	Using a scan tool, program the correct VIN into the BCM. Has the reprogramming procedure been completed?	-	Go to Step 5	-
5	Using a scan tool, install the SDM part number in the BCM. Has the reprogramming procedure been completed?	-	Go to Step 6	-
6	Using a scan tool, check if code B1001 is current. Clear diagnostic trouble codes. Set the ignition to OFF and then to ON. Does the scan tool indicate that this code is current?	-	Go to Step 7	Go to Step 10
7	Using a scan tool, perform a complete reprogramming of the BCM. Has the reprogramming procedure been completed?	-	Go to Step 8	-
8	Using a scan tool, check if code B1001 is current. Clear diagnostic trouble codes. Set the ignition to OFF and then to ON. Does the scan tool indicate that this code is current?	-	Go to Step 9	Go to Step 10
9	Replace SDM. Perform the BCM reprogramming procedure to have the BCM relearn the new SDM ID. Is the replacement completed?	-	Go to Step 10	-
10	Reconnect all components of the SIR system. Use a scan tool to clear any existing DTCs. Run the vehicle under conditions where the ignition voltage is within the normal range (9~16V). Does the fault code re-enter?	-	Go to Step 2	System OK

• Incorrect options programmed into the SDM do not match this vehicle.
• Incorrect SDM installed that does not match the contents of this vehicle.

Attention! Sensor and diagnostic module (SDM) can maintain sufficient voltage to deploy the airbags and pretensioners for 1 minute after the ignition is turned off and the fuse has been removed. If the airbags and pretensioners are not disconnected, do not start service until one minute has passed after disconnecting power from the SDM. Failure to do so may result in injury.

Attention! During maintenance, handle the sensing and diagnostics module (SDM) very careful. Do not hit or shake the SDM. Never connect power to the airbag system (SIR), if the SDM is not hardwired to the vehicle. To make the airbag system (SIR) is working correctly, all SDM sensor and diagnostic module mounting bolts must be properly tightened, and the arrow on the SDM must point towards the front of the vehicle. If the SDM is not securely attached to the vehicle, the enabled module may deploy, causing the airbags to deploy unexpectedly and may result in injury.

Step	Operation	Values	Yes	No
1	Has a diagnostic system check been performed?	-	Go to Step 2	Go to item «Checking the SIR Diagnostic System»
2	Install scan tool, request SIR DTC display. Set ignition to ON Does the scan tool indicate code B1019 is current?	-	Go to Step 3	Go to Step 10
3	Using a scan tool, verify that the body controller (BCM) the correct vehicle identification number has been programmed (VIN), corresponding to the one on the vehicle identification plate. Is the correct VIN number programmed into the BCM?	-	Go to Step 5	Go to Step 4
4	Using a scan tool, program the correct VIN into the BCM. Has the reprogramming procedure been completed?	-	Go to Step 5	-
5	Using a scan tool, install the SDM part number in the BCM. Has the reprogramming procedure been completed?	-	Go to Step 6	-
6	Using a scan tool, check if code B1001 is current. Clear diagnostic trouble codes. Set the ignition to OFF and then to ON. Does the scan tool indicate that this code is current?	-	Go to Step 7	Go to Step 8
7	Replace SDM. Perform the BCM reprogramming procedure to have the BCM relearn the new SDM ID. Is the replacement completed?	-	Go to Step 8	-
8	Reconnect all components of the SIR system. Use a scan tool to clear any existing DTCs. Run the vehicle under conditions where the ignition voltage is within the normal range (9~16V). Does the fault code re-enter?	-	Go to Step 2	System OK

• The SDM detects a short to ground or an open in the ignition 1 voltage circuit when the ignition switch is in the RUN position (Job) or CRANK (Start).
• This state is present for at least 10 seconds.

Attention! Sensor and diagnostic module (SDM) can maintain sufficient voltage to deploy the airbags and pretensioners for 1 minute after the ignition is turned off and the fuse has been removed. If the airbags and pretensioners are not disconnected, do not start service until one minute has passed after disconnecting power from the SDM. Failure to do so may result in injury.

Attention! During maintenance, handle the sensing and diagnostics module (SDM) very careful. Do not hit or shake the SDM. Never connect power to the airbag system (SIR), if the SDM is not hardwired to the vehicle. To make the airbag system (SIR) is working correctly, all SDM sensor and diagnostic module mounting bolts must be properly tightened, and the arrow on the SDM must point towards the front of the vehicle. If the SDM is not securely attached to the vehicle, the enabled module may deploy, causing the airbags to deploy unexpectedly and may result in injury.

Step	Operation	Values	Yes	No
1	Has a diagnostic system check been performed?	-	Go to Step 2	Go to item «Checking the SIR Diagnostic System»
2	Check fuse F6 in the instrument panel fuse box. Has the fuse blown?	-	Go to Step 3	Go to Step 4
3	Replace fuse F6.	-	-	-
4	Check voltage at fuse F6. Is the voltage within the specified range?	9~16V	Go to Step 6	Go to Step 5
5	Troubleshoot the power supply and wiring to fuse F6.	-	-	-
6	Check the SDM module connector for loose connections. Fault found and corrected?	-	Go to Step 10	Go to Step 7
7	Set the ignition to the OFF position. Disconnect the sensor and diagnostic module wiring connector (SDM). Wait 30 seconds. Set ignition to ON Check the voltage at pin 32 of the SDM wiring connector. Is the voltage within the specified range?	9~16V	Go to Step 9	Go to Step 8
8	Replace the wiring between fuse F6 and terminal 32 of the SDM connector. Is the replacement completed?	-	Go to Step 10	-
9	Replace SDM. Perform the BCM reprogramming procedure to have the BCM relearn the new SDM ID. Is the replacement completed?	-	Go to Step 10	-
10	Reconnect all components of the SIR system. Use a scan tool to clear any existing DTCs. Run the vehicle under conditions where the ignition voltage is within the normal range (9~16V). Does the fault code re-enter?	-	Go to Step 2	System OK

• One of the low speed GMLAN serial links is shorted to ground or voltage.
• An internal fault in one of the controllers causing a short to voltage or ground on the low speed GMLAN circuits.

Attention! Sensor and diagnostic module (SDM) can maintain sufficient voltage to deploy the airbags and pretensioners for 1 minute after the ignition is turned off and the fuse has been removed. If the airbags and pretensioners are not disconnected, do not start service until one minute has passed after disconnecting power from the SDM. Failure to do so may result in injury.

Attention! During maintenance, handle the sensing and diagnostics module (SDM) very careful. Do not hit or shake the SDM. Never connect power to the airbag system (SIR), if the SDM is not hardwired to the vehicle. To make the airbag system (SIR) is working correctly, all SDM sensor and diagnostic module mounting bolts must be properly tightened, and the arrow on the SDM must point towards the front of the vehicle. If the SDM is not securely attached to the vehicle, the enabled module may deploy, causing the airbags to deploy unexpectedly and may result in injury.

Step	Operation	Values	Yes	No
1	Has a diagnostic system check been performed?	-	Go to Step 2	Go to item «Checking the SIR Diagnostic System»
2	Set the ignition to the OFF position. Perform the vehicle trouble code reading function using a scan tool. Is the scan tool communicating with any controller connected to the low speed GMLAN link?	-	Go to Step 3	Go to Step 5
3	Are any DTCs stored in U0140 and U0155?	-	Go to the appropriate section for diagnosing DTCs	Go to Step 4
4	Check for an open or short to ground or voltage on the low speed GMLAN serial communications circuits at each connected controller. Fault found and corrected?	-	Go to Step 16	Go to Step 5
5	Check for an open or short to ground in the ignition or battery circuits at the BCM. Check for an open in the ground circuit at the BCM. Fault found and corrected?	-	Go to Step 13	Go to Step 6
6	Set the ignition to the OFF position. Disconnect the diagnostic tool from the diagnostic socket (DLC). Check pin 1 of the DLC for a loose connection. Fault found and corrected?	-	Go to item «Checking the SIR Diagnostic System»	Go to Step 7
7	Disconnect the controller farthest from the DLC that is connected to the low speed GMLAN serial link. Set ignition to ON Attempt to communicate with the BCM. Does the scan tool communicate with the BCM?	-	Go to Step 11	Go to Step 8
8	Set the ignition to the OFF position. Disconnect the controller farthest from the DLC that is still connected to the low speed GMLAN serial link. Set ignition to ON Attempt to communicate with the BCM. Does the scan tool communicate with the BCM?	-	Go to Step 9	Go to Step 10
9	Check for a short to ground or voltage on the low speed GMLAN serial communications circuits between the last two disconnected controllers. Fault found and corrected?	-	Go to Step 9	Go to Step 10
10	Is the BCM the last device still connected to the low speed GMLAN serial link?	-	Go to Step 11	Go to Step 8
11	Set the ignition to the OFF position. Disconnect the BCM. Check for an open or short to ground or voltage on the low speed GMLAN serial communications circuits between the BCM and the previously disconnected controller, and between the BCM and the DLC. Fault found and corrected?	-	Go to Step 14	Go to Step 12
12	Verify that there is no loose connection on the low speed GMLAN serial link circuit on the last disconnected controller. Fault found and corrected?	-	Go to Step 14	Go to Step 13
13	Replace the last disconnected controller. Perform BCM reprogramming due to module replacement. Is the replacement completed?	-	Go to Step 14	-
14	Reconnect all disconnected controllers. Install the diagnostic tool. Set the ignition to on (ON), without starting the engine. Wait 10 seconds. It may be necessary to reset the scan tool by powering up before communications can be established after a short in the GMLAN low speed serial communications circuits has been cleared. Turn off the power or disconnect the scan tool before performing this test. Select the function to read fault codes for each controller. Record any displayed DTCs and the status of the DTCs. Are there any DTCs that begin with "U" and with the current status?	-	Go to item «Checking the SIR Diagnostic System»	Go to Step 15
15	Are there any DTCs that do not start with "U"?	-	Go to item «Checking the SIR Diagnostic System»	Go to Step 16
16	Have all DTCs been diagnosed?	-	Go to Step 17	Go to Step 14
17	Use a scan tool to clear any existing DTCs. Is the action completed?	-	System OK	-

• The voltage supplied to the controllers is within the normal operating voltage range.
• The power supply mode of the car determines the need for a serial communication session.
• DTC U0073 is not current.

• Communication failure between the SDM and the BCM.

• This DTC may be set due to a broken contact in the failed controller.
• This DTC may be set due to a power failure in the controller.

Attention! Sensor and diagnostic module (SDM) can maintain sufficient voltage to deploy the airbags and pretensioners for 1 minute after the ignition is turned off and the fuse has been removed. If the airbags and pretensioners are not disconnected, do not start service until one minute has passed after disconnecting power from the SDM. Failure to do so may result in injury.

Attention! During maintenance, handle the sensing and diagnostics module (SDM) very careful. Do not hit or shake the SDM. Never connect power to the airbag system (SIR), if the SDM is not hardwired to the vehicle. To make the airbag system (SIR) is working correctly, all SDM sensor and diagnostic module mounting bolts must be properly tightened, and the arrow on the SDM must point towards the front of the vehicle. If the SDM is not securely attached to the vehicle, the enabled module may deploy, causing the airbags to deploy unexpectedly and may result in injury.

Step	Operation	Values	Yes	No
1	Has a diagnostic system check been performed?	-	Go to Step 2	Go to item «Checking the SIR Diagnostic System»
2	Check for an open or short to ground or voltage on the low speed GMLAN serial link circuit at the BCM. Fault found and corrected?	-	Go to Step 6	Go to Step 3
3	Check the BCM connector for loose connections. Fault found and corrected?	-	Go to Step 6	Go to Step 4
4	Set the ignition to the OFF position. Disconnect the harness connectors from the BCM. Check the following circuits at the BCM wiring connectors for the following conditions: break or short to ground in the ignition voltage circuit; break in the mass chain; an open or short to ground in the battery positive voltage circuit. Fault found and corrected?	-	Go to Step 6	Go to Step 5
5	Replace BCM. Perform the BCM reprogramming procedure. Is the replacement completed?	-	Go to Step 6	-
6	Install the diagnostic tool. Set ignition to ON Select the function to read DTCs for the BCM. Does the scan tool display any DTCs that do not begin with "U"?	-	Go to the appropriate section for diagnosing DTCs	Go to Step 7
7	Select the function to read fault codes for the SDM controller. Does the scan tool display any DTCs that do not begin with "U"?	-	Go to the appropriate section for diagnosing DTCs	Go to Step 8
8	Use a scan tool to clear any existing DTCs. Continue diagnosing or clearing DTCs until all controllers have been tested and all DTCs cleared. Is the action completed?	-	System OK	-

• The voltage supplied to the controllers is within the normal operating voltage range.
• The power supply mode of the car determines the need for a serial communication session.
• DTC U0073 is not current.

• Disruption of communication between the SDM module and the instrument cluster (IPC).

• This DTC may be set due to a broken contact in the failed controller.
• This DTC may be set due to a power failure in the controller.

Attention! Sensor and diagnostic module (SDM) can maintain sufficient voltage to deploy the airbags and pretensioners for 1 minute after the ignition is turned off and the fuse has been removed. If the airbags and pretensioners are not disconnected, do not start service until one minute has passed after disconnecting power from the SDM. Failure to do so may result in injury.

Attention! During maintenance, handle the sensing and diagnostics module (SDM) very careful. Do not hit or shake the SDM. Never connect power to the airbag system (SIR), if the SDM is not hardwired to the vehicle. To make the airbag system (SIR) is working correctly, all SDM sensor and diagnostic module mounting bolts must be properly tightened, and the arrow on the SDM must point towards the front of the vehicle. If the SDM is not securely attached to the vehicle, the enabled module may deploy, causing the airbags to deploy unexpectedly and may result in injury.

Step	Operation	Values	Yes	No
1	Has a diagnostic system check been performed?	-	Go to Step 2	Go to item «Checking the SIR Diagnostic System»
2	Check for an open or short to ground or voltage on the low speed GMLAN serial link circuit at the instrument cluster. Fault found and corrected?	-	Go to Step 6	Go to Step 3
3	Check the instrument cluster connector for loose connections. Fault found and corrected?	-	Go to Step 6	Go to Step 4
4	Set the ignition to the OFF position. Disconnect the wiring harness connectors from the instrument cluster. Check the following circuits at the instrument cluster wiring connectors for the conditions indicated. break or short to ground in the ignition voltage circuit; break in the mass chain; an open or short to ground in the battery positive voltage circuit. Fault found and corrected?	-	Go to Step 6	Go to Step 5
5	Replace instrument cluster. Perform the instrument cluster reprogramming procedure. Is the replacement completed?	-	Go to Step 6	-
6	Install the diagnostic tool. Set ignition to ON Select the DTC function for the instrument cluster. Does the scan tool display any DTCs that do not begin with "U"?	-	Go to the appropriate section for diagnosing DTCs	Go to Step 7
7	Select the function to read fault codes for the SDM controller. Does the scan tool display any DTCs that do not begin with "U"?	-	Go to the appropriate section for diagnosing DTCs	Go to Step 8
8	Use a scan tool to clear any existing DTCs. Continue diagnosing or clearing DTCs until all controllers have been tested and all DTCs cleared. Is the action completed?	-	System OK	-