Faulty Signal

Faulty signal

Checking the component
The infotainment module (ICM) has registered that the integrated audio module (IAM) is invalid according to the list stored in the central electronic module (CEM).
The cause of the fault is probably that no software has been downloaded or that software downloading has failed after integrated audio module (IAM) replacement.

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

If the fault persists after software download, try replacing the integrated audio module (IAM).
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.
Obtain the ID of the integrated audio module (IAM) by clicking on the VCT2000 symbol. Also check that the current diagnostic trouble code (DTC) is not detected again after the Infotainment control module (ICM) has been active for at least 75 seconds.





Could 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





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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