Internal Fault

Internal fault

Checking the power supply
- Ignition off
- Unplug connector B to the driver door/passenger door module (DDM/PDM).
- Ignition on.
Check the power supply to the driver door/passenger door module (DDM/PDM) by:
- Measuring the voltage between #B12 (#26) and #B5 (#19) on control module connector B.
- Measuring battery voltage.
If the difference between the control module supply voltage and battery voltage is greater than 2 V, the fault is in the supply cable or is due to contact resistance.
Also check the fuse of the driver door/passenger door module (DDM/PDM). A half-blown fuse can cause intermittent faults.
If the difference is less than 2 V, there could be an internal fault in the door control module.
Remedy as necessary.

Other information:
- Connecting the breakout box Connecting the Breakout Box, Driver Door Module (DDM) / Passenger Door Module (PDM)
- Signal specification Pinout Values and Diagnostic Parameters
- Driver's door module / passenger door module (DDM/PDM), replacing Driver's Door Module/Passenger Door Module (DDM/PDM), Replacing
- Checking wiring and terminals Checking Wiring And Terminals


Continue - Verification

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Verification




Verification mixed

Verification

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








- Ignition off
- Reinstall the connectors, components etc.
- Ignition on.
Check that the power window mechanism, door mirrors and central locking operate.

Do all the functions operate normally?

Yes - VERIFIED

No - VERIFICATION FAILED

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VERIFIED - Fault Found

VERIFICATION FAILED - 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 - FAULT-TRACING FAILED

No - Attempt New Test

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FAULT-TRACING FAILED - FAULT-TRACING FAILED

Attempt New Test - Checking the power supply

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