Signal Missing

Signal missing

Checking the power supply and ground for the driver door module (DDM)




- Ignition off.
Check that the fuse for the control module is intact.
Check the power supply and ground terminal as instructed.

Other information:
- Checking the power supply and ground terminals Checking the Voltage/Ground Terminal, Driver Door Module (DDM)/Passenger Door Module (PDM)
- For information about fuse and terminal numbers, see the relevant Wiring Diagram.
- Checking wiring and terminals Checking Wiring and Terminals

Was a fault detected?

Yes - Checking the function of the driver door module (DDM)

No - Checking the communication with the driver door module (DDM)

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Checking the communication with the driver door module (DDM)

Hint: The CAN communication with the control module is probably OK if the control module ID can be read off. The fault is probably intermittent and may therefore be difficult to locate.




- Ignition on
- Try to communicate with the driver door module (DDM) by reading off the control module ID
- Click on the symbol for VCT2000 to begin reading off

Continue - Signal Missing - General Information

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Checking the function of the driver door module (DDM)

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








- Ignition off
- Reconnect the connectors. Reinstall the components
- Ignition on.
For further information about the fuse and terminal pin numbers, see the relevant Wiring Diagram.
Check the function of the control module by pressing the up and down buttons for the power window mechanism. The window must open or close.
Also activate the central locking buttons. The doors must lock and unlock.

Is the function OK?

Yes - Troubleshooting procedure complete

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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Attempt New Test - Checking the power supply and ground for the driver door module (DDM)

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