Important: The following steps must be completed before using the symptom tables.
1. Before using the symptom tables, perform a system diagnostic check to ensure the following items are true.
- There are no fault codes.
- The controllers can communicate over a serial line.
2. View system operation to familiarize yourself with the functions of the system.
Visual inspection / physical control
Some symptom diagnosis procedures require a thorough visual inspection/physical inspection. This step is extremely important - it can lead to a solution to the problem without further checks and save valuable time. These checks include the following:
- Inspect aftermarket equipment that may affect the operation of the lighting system.
- Inspect easily accessible or visible wiring harness components and connectors for obvious signs of damage or conditions that could cause this symptom.
- If only one lamp fails, inspect and repair a broken connection or an open in the power or ground circuit before replacing the lamp.
Intermittent fault
Faulty electrical connections or wiring can also cause intermittent faults. See Section 9A, "Checking body wiring systems for intermittent faults and contact problems".
Reversing lights stay on all the time
Step | Operation | Values | Yes | No |
1 |
Has the vehicle system diagnostic check been completed?
|
-
|
Go to Step 2
|
Check the vehicle with a diagnostic tool.
|
2 |
Are the reverse lights on?
|
-
|
Go to Step 3
|
|
3 |
Disconnect position switch "parking-neutral".
Did the reverse lights come on?
|
-
|
Go to Step 4
|
Go to Step 5
|
4 |
Repair the short to battery positive in the reversing light supply circuit.
Has the repair been completed?
|
-
|
Go to Step 6
|
-
|
5 |
Replace switch.
Has the replacement been completed?
|
-
|
Go to Step 6
|
-
|
6 |
Operate the system to check if the problem has been fixed. Has the cause been removed?
Has the replacement been completed?
|
-
|
System OK
|
Go to Step 3
|
Reversing lights not working
Step | Operation | Values | Yes | No |
1 |
Has the vehicle system diagnostic check been completed?
|
-
|
Go to Step 2
|
Check the vehicle with a diagnostic tool.
|
2 |
Are both reverse lights on?
|
-
|
Go to Step 3
|
|
3 |
Only one lamp not working?
|
-
|
Go to Step 4
|
Go to Step 5
|
4 |
Does the control lamp light up?
|
-
|
Go to Step 8
|
Go to Step 9
|
5 |
Does the control lamp light up?
|
-
|
Go to Step 6
|
Go to Step 10
|
6 |
Are the reverse lights on?
|
-
|
Go to Step 7
|
Go to Step 11
|
7 |
Inspect the wiring harness connector at the switch for loose connections.
Has the cause been found and fixed?
|
-
|
Go to Step 13
|
Go to Step 12
|
8 |
Repair the open or high resistance in the ground circuit of the inoperative reversing light. See related circuit.
Has the repair been completed?
|
-
|
Go to Step 13
|
-
|
9 |
Repair the open or high resistance in the power supply circuit of the inoperative rear year light.
Has the repair been completed?
|
-
|
Go to Step 13
|
-
|
10 |
Repair the open, high resistance, or short to ground in the battery positive voltage circuit at the switch.
Has the repair been completed?
|
-
|
Go to Step 13
|
-
|
11 |
Repair the open or high resistance in the reverse light supply circuit between the switch and the reverse lamp bulbs.
Has the repair been completed?
|
-
|
Go to Step 13
|
-
|
12 |
Replace switch.
Has the replacement been completed?
|
-
|
Go to Step 13
|
-
|
13 |
Operate the system to check if the problem has been fixed.
Has the cause been removed?
|
-
|
Go to Step 13
|
Go to Step 2
|
Entrance lights are constantly on
Step | Operation | Values | Yes | No |
1 |
Has the vehicle system diagnostic check been completed?
|
-
|
Go to Step 2
|
Check the vehicle with a diagnostic tool.
|
2 |
Is the entrance lighting working properly?
|
-
|
Go to Step 3
|
|
3 |
The entrance light stays on when the switch on the front overhead console is in the "OFF" ("OFF")?
|
-
|
Go to Step 7
|
Go to Step 4
|
4 |
Does the entrance light go out on an off command?
|
-
|
Go to Step 5
|
Go to Step 8
|
5 |
Does the scan tool display show all parameters high?
|
-
|
Go to Step 14
|
Go to Step 6
|
6 |
Does the scan tool display indicate that the passenger door switch parameter is low?
|
-
|
Go to Step 10
|
Go to Step 9
|
7 |
Disconnect the light switch on the front overhead console. Is the rear entry light on?
|
-
|
Go to Step 15
|
Go to Step 13
|
8 |
Test the input light switch signal circuit for a short to ground.
Has the cause been found and fixed?
|
-
|
Go to Step 19
|
Go to Step 14
|
9 |
Observing the parameters, disconnect the connector on the switch, the parameter of which shows a low level.
Does the scan tool display show a change to a high level when the switch is disconnected?
|
-
|
Go to Step 17
|
Go to Step 11
|
10 |
Observing the parameter, in turn, one by one, disconnect the switches on the frame of each passenger door.
Does the scan tool display show a change to a high level when one of the switches on the passenger door frame is disconnected?
|
-
|
Go to Step 17
|
Go to Step 12
|
11 |
Test the open switch signal circuit for a short to ground.
Has the cause been found and fixed?
|
-
|
Go to Step 19
|
Go to Step 14
|
12 |
Test the passenger door open switch signal circuit for a short to ground.
Has the cause been found and fixed?
|
-
|
Go to Step 19
|
Go to Step 14
|
13 |
Check the harness connector at the personal light switch for poor connections.
Has the cause been found and fixed?
|
-
|
Go to Step 19
|
Go to Step 16
|
14 |
Check for a poor connection in the body controller wiring harness connector (BCM).
Has the cause been found and fixed?
|
-
|
Go to Step 19
|
Go to Step 18
|
15 |
Repair the short to ground in the rear overhead console lamp ground circuit.
Has the repair been completed?
|
-
|
Go to Step 19
|
-
|
16 |
Replace the personal light switch.
Has the replacement been completed?
|
-
|
Go to Step 19
|
-
|
17 |
Replace defective opening switch.
Has the replacement been completed?
|
-
|
Go to Step 19
|
-
|
18 |
Replace BCM. See Section 9V, "body controller".
Has the replacement been completed?
|
-
|
Go to Step 19
|
-
|
19 |
Operate the system to check if the problem has been fixed.
Has the cause been removed?
|
-
|
System OK
|
Go to Step 2
|
Entrance lights not working
Step | Operation | Values | Yes | No |
1 |
Has the vehicle system diagnostic check been completed?
|
-
|
Go to Step 2
|
Check the vehicle with a diagnostic tool.
|
2 |
Do the entrance lights come on in the correct order?
|
-
|
Go to Step 3
|
|
3 |
Is only one entry light not working?
|
-
|
Go to Step 4
|
Go to Step 5
|
4 |
Test the power and ground circuits of the inoperative entry light for an open or high resistance.
Has the cause been found and fixed?
|
-
|
Go to Step 23
|
Go to Step 19
|
5 |
Are all entrance lights off permanently?
|
-
|
Go to Step 6
|
Go to Step 7
|
6 |
Check the input light and battery positive voltage circuits at the body controller (BCM) for an open, high resistance, or short to ground.
Has the cause been found and fixed?
|
-
|
Go to Step 23
|
Go to Step 17
|
7 |
Do the entry lights not come on only from the light switch on the front overhead console?
|
-
|
Go to Step 8
|
Go to Step 9
|
8 |
Test the ground circuit at the front overhead console light switch for an open or high resistance.
Has the cause been found and fixed?
|
-
|
Go to Step 23
|
Go to Step 16
|
9 |
Do the entry lights not come on from all side doors and tailgate?
|
-
|
Go to Step 10
|
Go to Step 12
|
10 |
Does the control lamp light up?
|
-
|
Go to Step 16
|
Go to Step 11
|
11 |
Test the low control circuit at the BCM for an open or high resistance.
Has the cause been found and fixed?
|
-
|
Go to Step 23
|
Go to Step 17
|
12 |
Does the state of the parameter change from high to low in the prescribed manner?
|
-
|
Go to Step 17
|
Go to Step 13
|
13 |
Do the entrance lights come on?
|
-
|
Go to Step 15
|
Go to Step 14
|
14 |
Test the signal circuit at the switch for an open or high resistance.
Has the cause been found and fixed?
|
-
|
Go to Step 23
|
Go to Step 17
|
15 |
Test the ground circuit at the switch for an open or high resistance.
Has the cause been found and fixed?
|
-
|
Go to Step 23
|
Go to Step 18
|
16 |
Inspect the wiring harness connector at the front entry light assembly for loose connections.
Has the cause been found and fixed?
|
-
|
Go to Step 23
|
Go to Step 20
|
17 |
Check for a poor connection at the body controller harness connector.
Has the cause been found and fixed?
|
-
|
Go to Step 23
|
Go to Step 21
|
18 |
Inspect the harness connector at the inoperative switch for loose connections.
Has the cause been found and fixed?
|
-
|
Go to Step 23
|
Go to Step 22
|
19 |
Replace lamp.
Has the replacement been completed?
|
-
|
Go to Step 23
|
-
|
20 |
Replace the lamp or lamp assembly.
Has the replacement been completed?
|
-
|
Go to Step 23
|
-
|
21 |
Replace BCM. See Section 9V, "body controller".
Has the replacement been completed?
|
-
|
Go to Step 23
|
-
|
22 |
Replace defective switch.
Has the replacement been completed?
|
-
|
Go to Step 23
|
-
|
23 |
Operate the system to check if the problem has been fixed.
Has the cause been removed?
|
-
|
System OK
|
Go to Step 3
|
Daytime running lights not working (DRL)
Step | Operation | Values | Yes | No |
1 |
Has the vehicle system diagnostic check been completed?
|
-
|
Go to Step 2
|
Check the vehicle with a diagnostic tool.
|
2 |
Are the daytime running lights on? (DRL)?
|
-
|
Go to Step 3
|
|
3 |
Are the low beam headlights on at a reduced intensity?
|
-
|
Go to Step 4
|
Go to Step 6
|
4 |
Check DRL ambient light sensor signal circuit and low reference circuit at body controller (BCM) for a short to voltage, a short to ground, an open, or high resistance.
Has the cause been found and fixed?
|
-
|
Go to Step 9
|
Go to Step 5
|
5 |
Inspect the harness connector at the ambient light sensor for loose connections.
Has the cause been found and fixed?
|
-
|
Go to Step 9
|
Go to Step 7
|
6 |
Check for a poor connection at the body controller harness connector.
Has the cause been found and fixed?
|
-
|
Go to Step 9
|
Go to Step 8
|
7 |
Replace ambient light sensor.
Has the replacement been completed?
|
-
|
Go to Step 9
|
-
|
8 |
Replace BCM. See Section 9V, "body controller".
Has the cause been found and fixed?
|
-
|
Go to Step 9
|
-
|
9 |
Operate the system to check if the problem has been fixed.
Has the cause been removed?
|
-
|
System OK
|
Go to Step 2
|
Interior lights do not light up
Step | Operation | Values | Yes | No |
1 |
Has the vehicle system diagnostic check been completed?
|
-
|
Go to Step 2
|
Check the vehicle with a diagnostic tool.
|
2 |
Set interior light switch to ON position (ON).
Is the interior light on?
|
-
|
Go to Step 3
|
|
3 |
Does the control lamp light up?
|
-
|
Go to Step 4
|
Go to Step 6
|
4 |
Connect a test lamp between the entry light supply circuit and the entry light low control circuit.
Does the control lamp light up?
|
-
|
Go to Step 5
|
Go to Step 7
|
5 |
Inspect the wiring harness connector at the dome light for poor contact.
Has the cause been found and fixed?
|
-
|
Go to Step 9
|
Go to Step 8
|
6 |
Repair the open or high resistance in the power circuit for the entrance lights.
Has the repair been completed?
|
-
|
Go to Step 9
|
-
|
7 |
Repair the open or high resistance in the low level control circuit of the entry lights.
Has the repair been completed?
|
-
|
Go to Step 9
|
-
|
8 |
Replace interior lamp.
Has the replacement been completed?
|
-
|
Go to Step 9
|
-
|
9 |
Operate the system to check if the problem has been fixed.
Has the cause been removed?
|
-
|
System OK
|
Go to Step 3
|
Fog lights stay on all the time
Step | Operation | Values | Yes | No |
1 |
Has the vehicle system diagnostic check been completed?
|
-
|
Go to Step 2
|
Check the vehicle with a diagnostic tool.
|
2 |
Do the fog lights stay on?
|
-
|
Go to Step 3
|
|
3 |
Disconnect the fog lamp relay.
Did the fog lights go out?
|
-
|
Go to Step 4
|
Go to Step 6
|
4 |
Test the fog lamp relay control circuit for a short to ground.
Has the cause been found and fixed?
|
-
|
Go to Step 8
|
Go to Step 5
|
5 |
Inspect the fog lamp relay for a loose connection.
Has the cause been found and fixed?
|
-
|
Go to Step 8
|
Go to Step 7
|
6 |
Repair the short to voltage in the front fog lamp supply circuit.
Has the repair been completed?
|
-
|
Go to Step 8
|
-
|
7 |
Install the fog lamp relay.
Has the replacement been completed?
|
-
|
Go to Step 8
|
-
|
8 |
Operate the system to check if the problem has been fixed.
Has the cause been removed?
|
-
|
System OK
|
Go to Step 3
|
Fog lights don't work
Step | Operation | Values | Yes | No |
1 |
Has the vehicle system diagnostic check been completed?
|
-
|
Go to Step 2
|
Check the vehicle with a diagnostic tool.
|
2 |
Are both fog lights on?
|
-
|
Go to Step 3
|
|
3 |
Only one lamp not working?
|
-
|
Go to Step 4
|
Go to Step 6
|
4 |
Test the power circuits of the inoperative front fog lamp for an open or high resistance.
Has the cause been found and fixed?
|
-
|
Go to Step 22
|
Go to Step 5
|
5 |
Test the ground circuit of the failed lamp for an open or high resistance.
Has the cause been found and fixed?
|
-
|
Go to Step 22
|
Go to Step 15
|
6 |
Using a scan tool, command the fog lamps to turn on.
Did the fog lights come on?
|
-
|
Go to Step 9
|
Go to Step 7
|
7 |
Does the control lamp light up?
|
-
|
Go to Step 8
|
Go to Step 17
|
8 |
Test the fog lamp relay control circuit with a test lamp connected to battery positive voltage.
Does the control lamp light up?
|
-
|
Go to Step 16
|
Go to Step 12
|
9 |
Are the fog lights on?
|
-
|
Go to Step 10
|
Go to Step 11
|
10 |
Check voltage circuit "ignition 1" at the fog light switch for an open, high resistance, or short to ground.
Has the cause been found and fixed?
|
-
|
Go to Step 22
|
Go to Step 13
|
11 |
Test the front fog lamp switch signal circuit for an open, high resistance, or short to ground.
Has the cause been found and fixed?
|
-
|
Go to Step 22
|
Go to Step 14
|
12 |
Test the fog lamp relay control circuit for an open or high resistance.
Has the cause been found and fixed?
|
-
|
Go to Step 22
|
Go to Step 14
|
13 |
Inspect the harness connector at the fog light switch for loose connections.
Has the cause been found and fixed?
|
-
|
Go to Step 22
|
Go to Step 19
|
14 |
Check wiring harness connector at body controller (BCM) for contact violations. See Section 9V, "body controller".
Has the cause been found and fixed?
|
-
|
Go to Step 22
|
Go to Step 20
|
15 |
Inspect the wiring harness connector of the failed fog lamp for loose connections.
Has the cause been found and fixed?
|
-
|
Go to Step 22
|
Go to Step 18
|
16 |
Inspect the fog lamp relay for a loose connection.
Has the cause been found and fixed?
|
-
|
Go to Step 22
|
Go to Step 21
|
17 |
Repair the open, high resistance, or short to ground in the power supply circuit of the fog lamp relay coil.
Has the repair been completed?
|
-
|
Go to Step 22
|
-
|
18 |
Replace the lamp or lamp assembly.
Has the replacement been completed?
|
-
|
Go to Step 22
|
-
|
19 |
Replace the fog light switch.
Has the replacement been completed?
|
-
|
Go to Step 22
|
-
|
20 |
Replace BCM. See Section 9V, "body controller".
Has the replacement been completed?
|
-
|
Go to Step 22
|
-
|
21 |
Install the fog lamp relay.
Has the replacement been completed?
|
-
|
Go to Step 22
|
-
|
22 |
Operate the system to check if the problem has been fixed.
Has the cause been removed?
|
-
|
System OK
|
Go to Step 3
|
Hazard warning lights do not light up
Step | Operation | Values | Yes | No |
1 |
Has the vehicle system diagnostic check been completed?
|
-
|
Go to Step 2
|
Check the vehicle with a diagnostic tool.
|
2 |
Are the hazard warning light switches working properly?
|
-
|
Go to Step 3
|
|
3 |
Does at least one left and one right turn signal work normally, including turn signal indicators?
|
-
|
Go to Step 4
|
Check DTC List
|
4 |
Does the control lamp light up and go out?
|
-
|
Go to Step 8
|
Go to Step 5
|
5 |
Does the control lamp light up?
|
-
|
Go to Step 6
|
Go to Step 7
|
6 |
Test the turn signal/hazard warning light module signal circuit at the hazard warning light switch for an open or high resistance between S200 and the hazard warning light switch.
Has the cause been found and fixed?
|
-
|
Go to Step 12
|
Go to Step 9
|
7 |
Test the battery positive voltage circuit at the hazard warning light switch for an open, high resistance, or short to ground.
Has the cause been found and fixed?
|
-
|
Go to Step 12
|
-
|
8 |
Inspect the harness connector at the hazard warning light switch for loose connections.
Has the cause been found and fixed?
|
-
|
Go to Step 12
|
Go to Step 10
|
9 |
Inspect the harness connector at the turn signal relay for poor contact.
Has the cause been found and fixed?
|
-
|
Go to Step 12
|
Go to Step 11
|
10 |
Replace the hazard switch.
Has the replacement been completed?
|
-
|
Go to Step 12
|
-
|
11 |
Replace turn signal relay.
Has the replacement been completed?
|
-
|
Go to Step 12
|
-
|
12 |
Operate the system to check if the problem has been fixed.
Has the cause been removed?
|
-
|
System OK
|
Go to Step 3
|
High beam headlights not on
Step | Operation | Values | Yes | No |
1 |
Has the vehicle system diagnostic check been completed?
|
-
|
Go to Step 2
|
Check the vehicle with a diagnostic tool.
|
2 |
Are the high beam headlights on?
|
-
|
Go to Step 3
|
|
3 |
Inspect the harness connector at the headlight switch for loose connections.
Has the cause been found and fixed?
|
-
|
Go to Step 5
|
Go to Step 4
|
4 |
Replace headlight switch.
Has the replacement been completed?
|
-
|
Go to Step 5
|
-
|
5 |
Operate the system to check if the problem has been fixed.
Has the cause been removed?
|
-
|
System OK
|
Go to Step 3
|
Low beam headlights not on
Step | Operation | Values | Yes | No |
1 |
Has the vehicle system diagnostic check been completed?
|
-
|
Go to Step 2
|
Check the vehicle with a diagnostic tool.
|
2 |
Are the low beam headlights on?
|
-
|
Go to Step 3
|
|
3 |
Inspect the harness connector at the headlight switch for loose connections.
Has the cause been found and fixed?
|
-
|
Go to Step 5
|
Go to Step 4
|
4 |
Replace headlight switch.
Has the replacement been completed?
|
-
|
Go to Step 5
|
-
|
5 |
Operate the system to check if the problem has been fixed.
Has the cause been removed?
|
-
|
System OK
|
Go to Step 3
|
Low and high beam headlights do not work
Step | Operation | Values | Yes | No |
1 |
Has the vehicle system diagnostic check been completed?
|
-
|
Go to Step 2
|
Check the vehicle with a diagnostic tool.
|
2 |
Are the headlights on both low beam and high beam?
|
-
|
Go to Step 3
|
|
3 |
Test the headlight ground circuit at the headlight switch for an open or high resistance.
Has the cause been found and fixed?
|
-
|
Go to Step 6
|
Go to Step 4
|
4 |
Inspect the harness connector at the headlight switch for loose connections.
Has the cause been found and fixed?
|
-
|
Go to Step 6
|
Go to Step 5
|
5 |
Replace headlight switch.
Has the replacement been completed?
|
-
|
Go to Step 6
|
-
|
6 |
Operate the system to check if the problem has been fixed.
Has the cause been removed?
|
-
|
System OK
|
Go to Step 3
|
Headlights do not work in light signal mode
Step | Operation | Values | Yes | No |
1 |
Has the vehicle system diagnostic check been completed?
|
-
|
Go to Step 2
|
Check the vehicle with a diagnostic tool.
|
2 |
Are the high beam headlights on?
|
-
|
Go to Step 3
|
|
3 |
Inspect the harness connector at the headlight switch for loose connections.
Has the cause been found and fixed?
|
-
|
Go to Step 5
|
Go to Step 4
|
4 |
Replace headlight switch.
Has the repair been completed?
|
-
|
Go to Step 5
|
-
|
5 |
Operate the system to check if the problem has been fixed.
Has the cause been removed?
|
-
|
System OK
|
Go to Step 3
|
Entrance lights not on
Step | Operation | Values | Yes | No |
1 |
Has the vehicle system diagnostic check been completed?
|
-
|
Go to Step 2
|
Check the vehicle with a diagnostic tool.
|
2 |
Do the entrance lights come on?
|
-
|
Go to Step 3
|
|
3 |
Does the driver's door unlock?
|
-
|
Go to Step 4
|
|
4 |
Replace body controller (BCM). See section 9V, "body controller".
Has the replacement been completed?
|
-
|
Go to Step 5
|
-
|
5 |
Operate the system to check if the problem has been fixed.
Has the cause been removed?
|
-
|
System OK
|
Go to Step 3
|
Stop lights don't work
Step | Operation | Values | Yes | No |
1 |
Has the vehicle system diagnostic check been completed?
|
-
|
Go to Step 2
|
Check the vehicle with a diagnostic tool.
|
2 |
Press the brake pedal.
Are all brake lights on?
|
-
|
Go to Step 3
|
|
3 |
None of the lights are on?
|
-
|
Go to Step 5
|
Go to Step 4
|
4 |
Test the power and ground circuits for the failed bulb or high-positioned auxiliary brake light for an open or high resistance.
Has the cause been found and fixed?
|
-
|
Go to Step 14
|
Go to Step 9
|
5 |
Does the control lamp light up?
|
-
|
Go to Step 6
|
Go to Step 10
|
6 |
Connect a jumper wire with a 10 amp fuse between the battery positive voltage circuit at the brake switch and the brake light power circuit.
Are stop lights on?
|
-
|
Go to Step 7
|
Go to Step 11
|
7 |
Inspect the harness connector at the brake switch for loose connections.
Has the cause been found and fixed?
|
-
|
Go to Step 14
|
Go to Step 8
|
8 |
Check brake switch setting.
Has the cause been found and fixed?
|
-
|
Go to Step 14
|
Go to Step 12
|
9 |
Inspect the harness connector of the failing bulb or high-mounted auxiliary brake light for loose connections.
Has the cause been found and fixed?
|
-
|
Go to Step 14
|
Go to Step 13
|
10 |
Repair the open, high resistance, or short to ground in the battery positive voltage circuit at the brake switch.
Has the repair been completed?
|
-
|
Go to Step 14
|
-
|
11 |
Repair the open or high resistance in the brake light supply circuit.
Has the repair been completed?
|
-
|
Go to Step 14
|
-
|
12 |
Replace brake switch.
Has the replacement been completed?
|
-
|
Go to Step 14
|
-
|
13 |
Replace the bulb or high mounted brake light assembly.
Has the replacement been completed?
|
-
|
Go to Step 14
|
-
|
14 |
Operate the system to check if the problem has been fixed.
Has the cause been removed?
|
-
|
System OK
|
Go to Step 3
|
Direction indicators and / or indicators do not light up
Step | Operation | Values | Yes | No |
1 |
Has the vehicle system diagnostic check been completed?
|
-
|
Go to Step 2
|
Check the vehicle with a diagnostic tool.
|
2 |
Are the appropriate turn signals and indicators illuminated with each action?
|
-
|
Go to Step 3
|
|
3 |
Only one turn signal not working?
|
-
|
Go to Step 6
|
Go to Step 4
|
4 |
Only one turn signal indicator not working?
|
-
|
Go to Step 5
|
Go to Step 7
|
5 |
Is the control lamp on and flashing?
|
-
|
Go to Step 10
|
Go to Step 13
|
6 |
Is the control lamp on and flashing?
|
-
|
Go to Step 14
|
Go to Step 15
|
7 |
Are the hazard warning lights working properly?
|
-
|
Go to Step 8
|
Go to Step 6
|
8 |
Is the control lamp on and flashing?
|
-
|
Go to Step 11
|
Go to Step 9
|
9 |
Test the turn signal switch signal circuit for an open, high resistance, or short to ground.
Has the cause been found and fixed?
|
-
|
Go to Step 19
|
Go to Step 12
|
10 |
Check for a poor connection at the instrument cluster wiring harness connector.
Has the cause been found and fixed?
|
-
|
Go to Step 19
|
Go to Step 16
|
11 |
Inspect the harness connector at the turn signal/hazard warning light switch for loose connections.
Has the cause been found and fixed?
|
-
|
Go to Step 19
|
Go to Step 17
|
12 |
Inspect the harness connector at the turn signal/hazard warning light switch for loose connections.
Has the cause been found and fixed?
|
-
|
Go to Step 19
|
Go to Step 18
|
13 |
Repair an open, high resistance, or short to ground in the power circuit of the failed turn signal.
Has the repair been completed?
|
-
|
Go to Step 19
|
-
|
14 |
Repair the open or high resistance in the ground circuit of the failing light.
Has the repair been completed?
|
-
|
Go to Step 19
|
-
|
15 |
Repair an open, high resistance, or short to ground in the power circuit of the failed turn signal.
Has the repair been completed?
|
-
|
Go to Step 19
|
-
|
16 |
Replace instrument cluster. See Section 9E, "Instrumentation / driver information system".
Has the replacement been completed?
|
-
|
Go to Step 19
|
-
|
17 |
Replace the turn signal/hazard warning light switch.
Has the replacement been completed?
|
-
|
Go to Step 19
|
-
|
18 |
Replace the turn signal/hazard warning switch.
Has the replacement been completed?
|
-
|
Go to Step 19
|
-
|
19 |
Operate the system to check if the problem has been fixed.
Has the cause been removed?
|
-
|
System OK
|
Go to Step 3
|