Checking The Control Switch In The Tailgate Handle

Checking the control switch in the tailgate handle

Checking the control switch in the tailgate handle




- Ignition on.
- Pull in the tailgate handle.
Read the status for the tailgate handle.
The value should be LOW when the handle is pulled.





Is the value LOW?

Yes - No Fault Found

No - Checking connectors

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Checking connectors




- Remove interior trim from the tailgate.
- Check VGLA control module connector, the white license plate lighting connector and the handle door lock switch for contact resistance and oxidation according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault.
- Ignition on.
- Pull in the tailgate handle.
Read the status for the tailgate handle.
The value should be LOW when the handle is pulled.
If the value is OK the cause of the fault has been loose connections in the connectors.





Is the value LOW?

Yes - FAULT FOUND

No - Checking for an open-circuit

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Checking for an open-circuit
Check cable between VGLA control module #A23 and control switch for the tailgate handle and cable between control switch for tailgate handle and ground for an open-circuit according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault.









Was a fault found in the wiring?

Yes - Verification

No - Replacing component

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Replacing component
Replace control switch for tailgate handle according to Replacing the lock unit on the tailgate, electric switch or motor (2/4-door) Removal and Replacement.
These repair instruction also apply to C 70.

Continue - Verification

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Verification

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








- Ignition off.
- Reconnect connectors, reinstall components.
- Ignition on.
- Pull in the tailgate handle.
Read the status for the tailgate handle.
The value should be LOW when the handle is pulled.





Is the value LOW?

Yes - FAULT FOUND

No - Fault-tracing information
No Fault Found

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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 - Checking the control switch in the tailgate handle

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