Operation CHARM: Car repair manuals for everyone.

Signal Too Low






Signal too low

Checking the wiring
If the fault is intermittent, it has been registered previously but is no longer present. Intermittent faults can occur for a number of different reasons. The fault is evaluated depending on how it occurs.
Check the signal cable from the control module in the rear door terminal #A1 (#1) to the lock motor. Check for a short-circuit to ground.
If no fault was found, replace the control module in the rear door.
Remedy as necessary.

Other information
- Signal specification Signal Description, Driver's Door Module / Passenger Door Module (DDM/PDM)
- Connecting the breakout box, driver door module / passenger door module (DDM/PDM) Connecting The Breakout Box, Driver Door Module / Passenger Door Module (DDM/PDM)

Continue - Verification

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Verification

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








- Ignition off.
- Restore components and connectors.
- Ignition on.
Check that the child-locks function.

Is the function OK?

Yes - FAULT FOUND

No - Information

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Information

FAULT-TRACING FAILED - FAULT-TRACING FAILED

Attempt New Test - Checking the wiring

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