Checking The Child Lock Motors

Checking the child lock motors

Activating lock motor, unlocking




- Ignition on.
- Close the rear side doors.
Activate childlock motors, locking.
The rear doors should now lock to the child proof position. It should not be possible to open them from inside the passenger compartment.





Is the function OK?

Yes - Activating childlock motor, unlocking

No - Checking the connectors and cables

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Activating childlock motor, unlocking




- Ignition on.
Activate childlock motors unlocking.
The rear doors should now unlock from the child proof position. It should be possible to open them from inside the passenger compartment.





Is the function OK?

Yes - No Fault Found

No - Checking the connectors and cables

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Checking the connectors and cables
Check the VGLA control module connector and the relevant childlock motor connector for contact resistance and oxidation according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault.

Rear door on the driver's side:
Check the cable between VGLA control module terminal A2 (#2) and childlock motor connector terminal 1 and the cable between VGLA control module terminal B22 (#48) and the central locking motor connector terminal 2 for an open-circuit according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault.

Other information:
- To access / replace the childlock motor, see Replacing central locking motor, rear door Central Locking Motor For The Rear Side Door.
- To connect the breakout box, see Connecting the breakout box, lock and alarm (VGLA) Connecting The Breakout Box, Lock And Alarm (VGLA).





Was a fault detected?

Yes - Verification

No - Replacing the component

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Replacing the component
Try a new childlock motor.

Other information:
- To access / replace the child lock motor see Replacing central locking motor, rear door Central Locking Motor For The Rear Side Door.

Continue - Verification

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Verification

Hint: After carrying out the repair check that the fault has been remedied as follows:








- Ignition off.
- Reconnect the connectors, reinstall components etc.
- Ignition on.
- Close the rear side doors.
Activate the childlock motors.
The rear doors should now lock to the child proof position. It should not be possible to open them from inside the passenger compartment.





Is the function OK?

Yes - FAULT FOUND

No - Fault-tracing information

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Fault-tracing information




Information

Fault-tracing information
The fault should have been detected and remedied. As this is not the case fault-tracing has failed.
Exit fault-tracing for this diagnostic trouble code (DTC) or make another attempt.

Do you want to exit fault-tracing?

Yes - Exit fault-tracing

No - Attempt New Test

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Attempt New Test - Activating lock motor, unlocking

FAULT-TRACING FAILED - No Fault Found

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