Checking Switch To Open The Tailgate

Checking switch to open the tailgate

Checking signal from switch for opening tailgate




- Ignition on.
Activate switch for opening tailgate.
Read off switch status.
The value should be LOW when the switch has been activated.





Is the value LOW?

Yes - No Fault Found

No - Checking the connectors

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Checking the connectors




- Remove driver's door panel.
- Check VGLA-control module connector and connector for tailgate switch for contact resistance and oxidation according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault.
- Ignition on.
Activate switch for opening tailgate.
Read off switch status.
The value should be LOW when the switch has been activated.
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 the cable between VGLA control module #A23 and tailgate switch #5 and the cable between tailgate switch #3 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 switch according to Replacing the electric switch in the tailgate handle (2/4-door) Replacing the Electric Switch In the Tailgate Handle (2/4-Door).
These repair instruction apply to S/V/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.
Activate switch for opening tailgate.
Read off switch status.
The value should be LOW when the switch has been activated.





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 signal from switch for opening tailgate

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