Signal Missing

Signal missing

Checking the wiring








- Ignition off
- Disconnect the connector to the Integrated Audio Module (IAM).
Check the connections with regard to contact resistance, play and oxidation.
Check the antenna cable between the Integrated Audio Module (IAM) and the antenna amplifier with regard to open circuits.
Measure between:
- Integrated Audio Module (IAM) #B1 and antenna amplifier #1.
- Integrated Audio Module (IAM) #B2 and antenna amplifier #2.
If the vehicle is equipped with navigation system (does not apply to US) the antenna lead runs from Integrated Audio Module (IAM) #B1, via Multimedia module (MMM) , to antenna amplifier #1.
Remedy as necessary.

Other information
- Signal specification Signal Description, Integrated Audio Module (IAM)
- Control module general sound player Control Module General Sound Player
- Checking wiring and terminals Checking Wiring and Terminals





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
Check that the radio is working and that reception is acceptable.

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 wiring

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