Signal Missing

Signal missing

Checking the component
The infotainment control module (ICM) has registered that there is no communication with the phone module (PHM).
If the fault is intermittent, it has been registered previously but is no longer present. Intermittent faults can be caused by interference at start up of the phone module (PHM) or may be a different type of fault which occurs on different occasions. The fault is evaluated depending on how it occurs. If the fault recurs, replace the phone module (PHM).
In the event of a permanent fault, replace the phone module (PHM).
Remedy as necessary.

Other information:
- Phone module (PHM), replacing Phone Module (PHM), Replacing





Continue - Verification

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Verification




Verification

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








- Ignition off
- Reinstall the connectors, components etc.
- Ignition on for at least 12 seconds.
Make a call so that both the handset and the hands-free system are used.

Is the carphone working?

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 component

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