Checking Tailgate Switch
Checking tailgate switch
Checking signal from tailgate switch.
- Ignition on.
- Truck lid/tailgate open
- Go into rolling values.
- Read switch status in the tailgate
The value should be LOW when the tailgate is open.
Is the value LOW?
Yes - Verification
No - Checking connectors
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Checking connectors
- Check VGLA-control module connector and connector for lock unit in tailgate for contact resistance and oxidation according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault.
- Ignition on.
- Truck lid/tailgate open
- Go into rolling values.
- Read status for the door switch in the tailgate
The value should be LOW when the tailgate/trunk lid is open.
If the value is OK the cause of the fault has been loose connections in the connectors.
Is the value LOW?
Yes - Verification
No - Checking for an open-circuit
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Checking for an open-circuit
Check cable between VGLA control module #A19 and lock unit in tailgate/trunk lid terminal 1 and cable between lock unit in the tailgate/trunk lid terminal 4 and ground for an open-circuit according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault.
Were any faults found in the cables?
Yes - Verification
No - Replacing component
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Replacing component
Replace trunk lock unit according to Replacing the lock unit on the tailgate, electric switch or motor (2/4-door) Removal and Replacement or tailgate lock unit according to Replacing tailgate lock unit (5-door) .
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.
- Truck lid/tailgate open
- Go into rolling values.
- Read status for the door switch in the tailgate/trunk lid.
The value should be LOW when the tailgate/trunk lid is open.
Is the value LOW?
Yes - Fault has been remedied
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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