Operation CHARM: Car repair manuals for everyone.

Not Connected or Communication problems. Permanent Fault






Not connected or communication problems. Permanent fault

Replace the head unit / audio module
An internal program fault has been found in the head unit / audio control module.

Caution! New head unit / audio control modules are supplied without software. The head unit / audio control module must be programmed after it has been replaced.

Other information:
- For information about programming and replacing the head unit / audio control module see Radio/telephone, changing Service and Repair.



Continue - Verification

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Verification




Verification

Verification

Hint: After carrying out the repair, check that the fault has been remedied.








- Ignition off.
- Reinstall connectors, components etc.
- Ignition on.
Check that the MD/CD player functions.

Does the MD/CD player?

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 - FAULT-TRACING FAILED

No - Attempt New Test

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FAULT-TRACING FAILED - FAULT-TRACING FAILED

Attempt New Test - Replace the head unit / audio module

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