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Captiva 1 (2006-2018)
  • Home
  • Captiva
  • 2006-2018
  • Body
  • Doors and windows

Diagnosis of locks and power windows

            0

Symptoms - Doors



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 easily accessible or visible wiring harness components and connectors for obvious signs of damage or conditions that could cause this symptom.

Intermittent faults



Important: Check the correct installation of electrical components when an intermittent fault occurs. Inspect anti-theft devices, flashlights and mobile phones installed in the after-sales service. Verify that no aftermarket equipment is connected to class 2 circuits. If the cause of an intermittent fault cannot be determined, it may be due to a mobile phone signal. Faulty electrical connections or wiring can also cause intermittent faults.


Important: When a problem occurs, a DTC may or may not be set. Troubleshooting tables should not be used to diagnose intermittent faults. Successful troubleshooting requires that the fault be acknowledged.


The cause of most intermittent faults is a violation of the contacts and the integrity of the wiring. Perform a thorough inspection and physical check for the following conditions.
  • Unreliable connection of the mating parts of the connectors or loose insertion of the output into the connector housing.
  • Deformed or damaged pins.
  • Straighten or replace the connector pins in the suspected fault circuit to ensure good contact.
  • To check the reliability of the connection of the wire with the terminal, it is necessary to remove the terminal from the connector housing.

Power windows not working - all



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
Check operation of all power windows from all power window switches. Are all power windows operating normally from all power window switches?
-
Jump to section 9A, "Checking body wiring systems for intermittent faults and contact problems".
Go to Step 3
3
Does any electric lift operate from any power window switch?
-
Jump to section "Symptoms - Doors"
Go to Step 4
4
  1. Disconnect the main power window switch connector.
  2. Switch on the ignition with the engine off.
  3. Connect a test lamp between the auxiliary voltage circuit at the power window main switch connector and a good ground.
Does the control lamp light up?
-
Go to Step 5
Go to Step 6
5
Connect a test lamp between the auxiliary voltage circuit and the ground circuit at the power window main switch connector.
Does the control lamp light up?
-
Go to Step 10
Go to Step 13
6
  1. Switch off the ignition.
  2. Remove the power window relay.
  3. Connect a test lamp between the power window relay battery positive voltage circuit at the power window relay connector and a good ground.
Does the control lamp light up?
-
Go to Step 8
Go to Step 7
7
Test the following power window master switch circuits for a short to ground:
  • Left front power window button up
  • Left front power window button down
  • Power window main switch signal for left rear power window up
  • Power Window Master Switch Signal for LH Rear Window Down
  • Left Rear Power Window Switch Lockout Signal from Main Power Window Switch
  • Right Rear Power Window Switch Lockout Signal from Main Power Window Switch
  • Power window main switch signal for right rear power window up
  • Power Window Master Switch Signal for Right Rear Window Down
  • Right front power window button up
  • Right front power window button down
  • Left rear power window button up
  • Left rear power window button down
  • Right rear power window button up
  • Right rear power window button down
Has the cause been found and fixed?
-
Go to Step 17
Go to Step 12
8
Connect a test lamp between the battery positive voltage circuit and the ground circuit at the power window main switch relay connector.
Does the control lamp light up?
-
Go to Step 9
Go to Step 14
9
Test the auxiliary voltage circuit at the power window main switch for an open or high resistance.
Has the cause been found and fixed?
-
Go to Step 17
Go to Step 11
10
Inspect the power window main switch connector for loose connections.
Has the cause been found and fixed?
-
Go to Step 17
Go to Step 16
11
Inspect the power window main switch relay connector for loose connections.
Has the cause been found and fixed?
-
Go to Step 17
Go to Step 15
12
Repair the short to ground in the auxiliary voltage circuit at the power window main switch.
Is the repair finished?
-
Go to Step 17
-
13
Repair the open or high resistance in the ground circuit of the power window master switch.
Is the repair finished?
-
Go to Step 17
-
14
Repair the open or high resistance in the power window relay ground circuit.
Is the repair finished?
-
Go to Step 17
-
15
Replace the power window relay.
Has the replacement been completed?
-
Go to Step 17
-
16
Replace the power window master switch.
Has the replacement been completed?
-
Go to Step 17
-
17
Operate the system to check if the problem has been fixed.
Has the cause been removed?
-
System OK
Go to Step 2


Power window does not work - one (front windows)



Description of the test



The numbers below represent the steps in the diagnostic table.


If the rear power windows operate normally from the main switch, the auxiliary voltage and ground circuits are good.

3. The rear power window controls on the master switch share the auxiliary voltage and ground circuits with the front power windows.

Step Operation Values Yes No
1
Have you read the description of the device and operation of power windows?
-
Go to Step 2
Go to section "Symptoms - Doors"
2
  1. Switch on the ignition with the engine off.
  2. Check the operation of the front power windows from the main power window switch.
Check operation of all power windows from all power window switches. Are all power windows operating normally from all power window switches?
-
Jump to section 9A, "Checking body wiring systems for intermittent faults and contact problems".
Go to Step 3
3
Check the operation of the rear power windows from the main power window switch.
Are the rear windows working properly?
-
Go to Step 4
Go to section "Power windows not working - all"
4
  1. Disconnect the electric motor of the inoperative front power window.
  2. Connect a test lamp to a reliable ground.
  3. Check the window lift circuit at the power window motor harness connector.
  4. Press the power window switch button up.
Does the control lamp light up?
-
Go to Step 5
Go to Step 7
5
  1. With a test light still connected to a good ground, test the window down circuit at the power window motor harness connector.
  2. Press the power window switch button down.
Does the control lamp light up?
-
Go to Step 6
Go to Step 8
6
  1. Connect a test lamp between the window up and down circuits at the power window motor harness connector.
  2. Press the power window switch button up and down.
Does the control lamp light up in both directions?
-
Go to Step 10
Go to Step 9
7
Check circuits for an open or short to ground.
Has the cause been found and fixed?
-
Go to Step 13
Go to Step 9
8
Test the down circuit at the power window motor for high resistance, an open, or short to ground.
Has the cause been found and fixed?
-
Go to Step 13
Go to Step 10
9
Inspect the main power window switch for poor contact.
Has the cause been found and fixed?
-
Go to Step 13
Go to Step 11
10
Inspect the wiper motor for poor contact.
Has the cause been found and fixed?
-
Go to Step 13
Go to Step 12
11
Replace the power window master switch.
Has the replacement been completed?
-
Go to Step 13
-
12
Replace the power window motor.
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?
-
System OK
Go to Step 2


Power window does not work - one (rear windows)



Step Operation Values Yes No
1
Have you read the description of the device and operation of power windows?
-
Go to Step 2
Go to section "Symptoms - Doors"
2
  1. Switch on the ignition with the engine off.
  2. Set the power window lock switch to the OFF position.
  3. Check the movement of the rear passenger windows up and down from both rear passenger switches and the main power window control switch.
Do the rear passenger windows operate normally with both switches?
-
Jump to section 9A, "Checking body wiring systems for intermittent faults and contact problems".
Go to Step 3
3
Does the rear passenger window operate when operated from the main power window switch and does not operate from the rear passenger switch?
-
Go to Step 5
Go to Step 4
4
Does the rear passenger window operate when operated from the rear switch and does not operate from the main power window switch?
-
Go to Step 6
Go to Step 7
5
  1. Disconnect the passenger's power window switch.
  2. Connect a test lamp between the power window lock control circuit at the passenger power window switch harness connector and a good ground.
Does the control lamp light up?
-
Go to Step 17
Go to Step 12
6
Does the driver's window operate when operated from the main power window switch?
-
Go to Step 20
Go to section "Power windows not working - all"
7
  1. Disconnect the passenger power window motor.
  2. Connect a test lamp between the power window motor up-window circuit at the passenger power window motor harness connector and a good ground.
  3. Check the passenger window lift when operated from the main power window switch.
Did the control lamp come on?
-
Go to Step 8
Go to Step 10
8
  1. Connect a test lamp between the power window motor down circuit at the passenger power window motor harness connector and a good ground.
  2. Connect a test lamp between the power window motor up-window circuit at the passenger power window motor harness connector and a good ground.
Does the control lamp light up?
-
Go to Step 9
Go to Step 11
9
  1. Connect a test lamp between the window up and down circuits at the passenger window motor harness connector.
  2. Check operation of passenger's power window up and down.
Does the control lamp light up in both directions?
-
Go to Step 18
Go to Step 19
10
  1. Disconnect the passenger's power window switch.
  2. Connect a test lamp between the main switch up signal circuit at the passenger power window switch harness connector and a good ground.
Check the passenger window lift when operated from the main power window switch. Did the control lamp come on?
-
Go to Step 15
Go to Step 13
11
  1. Disconnect the passenger's power window switch.
  2. Connect a test lamp between the main switch down signal circuit at the passenger power window switch harness connector and a good ground.
  3. Check passenger window down when operated from main power window switch.
Did the control lamp come on?
-
Go to Step 16
Go to Step 14
12
Test the power window lock control circuit for high resistance or an open.
Has the cause been found and fixed?
-
Go to Step 23
Go to Step 20
13
Test the window up signal circuit at the power window master switch for a high resistance or an open.
Has the cause been found and fixed?
-
Go to Step 23
Go to Step 19
14
Test the window down signal circuit at the power window master switch for a high resistance or an open.
Has the cause been found and fixed?
-
Go to Step 23
Go to Step 19
15
Test the window up control circuit at the power window motor for high resistance or an open.
Has the cause been found and fixed?
-
Go to Step 23
Go to Step 17
16
Test the window down control circuit at the power window motor for high resistance or an open.
Has the cause been found and fixed?
-
Go to Step 23
Go to Step 17
17
Inspect the passenger's power window switch for poor contact.
Has the cause been found and fixed?
-
Go to Step 23
Go to Step 22
18
Inspect the passenger window motor for poor contact.
Is the cause found and fixed?
-
Go to Step 23
Go to Step 21
19
Inspect the main power window switch for poor contact.
Has the cause been found and fixed?
-
Go to Step 23
Go to Step 20
20
Replace the power window master switch.
Has the replacement been completed?
-
Go to Step 23
-
21
Replace the rear passenger window motor.
Has the replacement been completed?
-
Go to Step 23
-
22
Replace the passenger's power window 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 2


Power windows do not work - quick lowering function



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
Check the operation of the driver's power window.
Does the power window operate normally except for the quick-down function?
-
Go to Step 3
Jump to section "Symptoms - Doors"
3
Replace the driver's power window switch.
Is the repair finished?
-
Go to Step 4
-
4
Check system operation to see if the problem has been fixed.
Has the cause been removed?
-
System OK
Go to Step 2



Power windows not working - lock function



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
Verify that the rear power window lock function is not working properly.
Is the lock function working properly?
-
Jump to section 9A, "Checking body wiring systems for intermittent faults and contact problems".
Go to Step 3
3
Important: Make sure the power window switch lock is not activated.
  1. Switch off the ignition.
  2. Disconnect the front power window switch.
  3. Test the interlock signal circuit at the front power window switch for a short to voltage.
Has the cause been found and fixed?
-
Go to Step 5
Go to Step 4
4
Replace front power window switch.
Is the repair finished?
-
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 2


Door open indicator malfunction



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
Alternately open and close the driver's and passenger's doors while observing the instrument cluster (IPC).
Are the door open indicators working properly?
-
Jump to section 9A, "Checking body wiring systems for intermittent faults and contact problems".
Go to Step 3
3
Are the interior lights working properly when opening and closing each door?
-
Go to Step 4
Go to item "Symptoms - Lighting Systems" in section 9B, "Lighting systems".
4
Replace IPC instrument cluster.
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 2



Power door locks not working



Power door locks not working - all doors and switches



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
Make sure all door locks and switches are not working.
Are the power door locks working properly?
-
Jump to section 9A, "Checking body wiring systems for intermittent faults and contact problems".
Go to Step 3
3
  1. Install the diagnostic tool.
  2. Switch on the ignition with the engine off.
  3. Command the scan tool to lock and unlock the doors.
Do the door lock actuators lock and unlock the doors according to the command given?
-
Go to Step 4
Go to Step 5
4
Blown LOCK/MIRROR fuse (LOCK/MIRROR)?
-
Go to Step 8
Go to Step 5
5
DR LCK fuse blown (DOOR LOCK)?
-
Go to Step 9
Go to Step 6
6
Test the battery positive voltage circuit at the key switches for an open or high resistance.
Has the cause been found and fixed?
-
Go to Step 11
Go to Step 7
7
Inspect Body Controller (BCM) for contact violations.
Has the cause been found and fixed?
-
Go to Step 11
Go to Step 10
8
Repair the short to ground on one of the following driver or passenger door lock switch circuits:
  • Positive battery voltage
  • Lock circuit on passenger door lock switch
  • Unlock circuit on passenger door lock switch
Is the repair finished?
-
Go to Step 11
-
9
Repair the short to ground on one of the following circuits:
  • Unlock circuit on driver's door lock actuator
  • Locking chain on the door lock drive
  • The unlocking circuit on the door lock drive
Is the repair finished?
-
Go to Step 11
-
10
Replace BCM.
Has the replacement been completed?
-
Go to Step 11
-
11
Operate the system to check if the problem has been fixed.
Has the cause been found and fixed?
-
System OK
Go to Step 2


Power door locks not working - one door or switch



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
Check for a fault - one switch or door lock actuator does not work.
Are the power door locks working properly?
-
Jump to section 9A, "Checking body wiring systems for intermittent faults and contact problems".
Go to Step 3
3
Is the door lock switch the faulty part?
-
Go to Step 4
Go to Step 6
4
Both LOCK and UNLOCK functions not working?
-
Go to Step 10
Go to Step 5
5
LOCK function not working?
-
Go to Step 11
Go to Step 12
6
Is the driver's door lock actuator the faulty part?
-
Go to Step 7
Go to Step 8
7
  1. Disconnect the driver's door lock actuator.
  2. Connect a test lamp between the driver's door lock actuator unlock and lock control circuits at the driver's door lock actuator electrical connector.
  3. Set the door lock switch to the LOCK and UNLOCK positions.
Does the control lamp light up?
-
Go to Step 16
Go to Step 13
8
  1. Disconnect the corresponding lock drive.
  2. Connect a test lamp between the unlocking and locking control circuits of the lock actuator at the electrical connector of the corresponding lock actuator.
  3. Set the door lock switch to the LOCK position.
Does the control lamp light up?
-
Go to Step 9
Go to Step 14
9
Set the door lock switch to the UNLOCK position.
Does the control lamp light up?
-
Go to Step 17
Go to Step 15
10
Check battery positive voltage circuit from LOCK/MIRROR fuse (LOCK/MIRROR) on the door lock switch for an open circuit.
Has the cause been found and fixed?
-
Go to Step 25
Go to Step 18
11
Test the lock signal circuit at the driver's door lock switch for an open or short to battery voltage.
Has the cause been found and fixed?
-
Go to Step 25
Go to Step 19
12
Test the unlock signal circuit at the driver's door lock switch for an open or short to battery voltage.
Has the cause been found and fixed?
-
Go to Step 25
Go to Step 19
13
Test the unlock control circuit at the driver's door lock actuator for an open or short to battery voltage.
Has the cause been found and fixed?
-
Go to Step 25
Go to Step 15
14
Test the lock control circuit at the appropriate door lock actuator for an open or short to battery voltage.
Has the cause been found and fixed?
-
Go to Step 25
Go to Step 20
15
Test the unlock control circuit at the appropriate lock actuator for an open or short to battery voltage.
Has the cause been found and fixed?
-
Go to Step 25
Go to Step 20
16
Inspect the driver's door lock actuator for contact problems.
Has the cause been found and fixed?
-
Go to Step 25
Go to Step 21
17
Inspect the associated door lock actuator for contact problems.
Has the cause been found and fixed?
-
Go to Step 21
Go to Step 21
18
Inspect the appropriate door lock switch for contact problems.
Is the cause found and fixed?
-
Go to Step 25
Go to Step 21
19
Inspect Body Controller (BCM) for contact violations.
Is the cause found and fixed?
-
Go to Step 25
Go to Step 23
20
Inspect the harness connectors at the instrument panel fuse box for loose connections.
Has the cause been found and fixed?
-
Go to Step 25
Go to Step 24
21
Replace the corresponding lock drive.
Is the repair finished?
-
Go to Step 25
-
22
Replace the corresponding door lock switch.
Is the repair finished?
-
Go to Step 25
-
23
Replace BCM.
Has the replacement been completed?
-
Go to Step 25
-
24
Replace the appropriate door lock relay.
Is the repair finished?
-
Go to Step 25
-
25
Operate the system to check if the problem has been fixed.
Has the cause been found and fixed?
-
System OK
Go to Step 2


Power door locks do not work - blocking function



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
Verify that the power door lock function is not working.
Is the power door lock function working properly?
-
Jump to section 9A, "Checking body wiring systems for intermittent faults and contact problems".
Go to Step 3
3
Are all power door locks not working?
-
Go to section "Symptoms - Doors"
Go to Step 4
4
  1. Close all doors.
  2. Open and close each door while watching the entrance lighting fixtures.
Do the entry lights come on when each door is checked?
-
Go to Step 5
Jump to Section 9B, "Lighting systems".
5
  1. Insert the key fully into the ignition lock cylinder.
  2. Open the driver's door.
Is there an audible signal?
-
Go to Step 6
Jump to section 9E, "Instruments/driver information system".
6
Replace body controller (BCM).
Has the replacement been completed?
-
Go to Step 7
-
7
Operate the system to check if the problem has been fixed.
Has the cause been found and fixed?
-
System OK
Go to Step 3

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Previous articles
Captiva 1: Doors and windows
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Captiva 1 (2006-2018) 
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