Faulty Signal

Faulty signal

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 short circuits to supply voltage.
Check the antenna cable between the Integrated Audio Module (IAM) and the antenna amplifier with regard to short circuits to ground.
Measure between:
- Integrated Audio Module (IAM) #C1 and antenna amplifier #1.
- Integrated Audio Module (IAM) #C2 and antenna amplifier #2.
Remedy as necessary.

Other information
- Signal specification Signal Specification, Integrated Audio Module (IAM)
- Location of components Component Location, Integrated Audio Module (IAM)
- 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 - VERIFIED

No - VERIFICATION FAILED

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VERIFIED - FAULT FOUND

VERIFICATION FAILED - Fault-tracing information

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Fault-tracing information

Attempt New Test - Checking the wiring

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