Operation CHARM: Car repair manuals for everyone.

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 signal cable between the Integrated Audio Module (IAM) and the speaker in the left-hand rear door with regard to short circuits and open circuits.
Measure between:
- Integrated audio module (IAM) terminal #A6 and speaker terminal #1 in the left rear door.
- Integrated audio module (IAM) terminal #A13 and speaker terminal #2 in the left rear door.
If no fault was detected, replace the Integrated Audio Module (IAM).
Remedy as necessary.

Other information
- Signal specification Signal Specification, Integrated Audio Module (IAM)
- Control module general sound player Control Module General Sound Player
- Loudspeaker, rear side door, replacing Loudspeaker, Rear Side Door
- 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 sound is heard from the speakers by testing the CD player.

Are the speakers working?

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 wiring

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