Faulty Signal

Faulty signal

Checking the component
The infotainment control module (ICM) has registered that the phone module (PHM) is invalid according to the list stored in the central electronic module (CEM).
The cause of the fault is probably that software has not been downloaded or that the download failed after replacing the phone module (PHM).

Hint: When downloading software after replacing a control module, the serial number of the control module is stored in the central electronic module (CEM). This is so that the Security function on MOST can approve the control module in the MOST network in the car.

Try replacing the phone module (PHM) if the fault remains after the software is downloaded.
Remedy as necessary.

Other information





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.
Read off the control module ID from the phone module (PHM) by clicking on the VCT2000 symbol.





Can the control module ID be read off?

Yes - VERIFIED

No - VERIFICATION FAILED

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VERIFIED - FAULT FOUND

VERIFICATION FAILED - Fault-tracing information

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Fault-tracing information

FAULT-TRACING FAILED - FAULT-TRACING FAILED

Attempt New Test - Checking the component

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