Signal Too High / Low

Signal too high / low

Checking the cable








- Ignition off
- Disconnect the connector for the treble loudspeaker/upper loudspeaker in the left front door
- Disconnect the 16-pin connector for the audio module (AUD).

Hint: The front left treble loudspeaker/upper loudspeaker and the front left loudspeaker are connected to these signal cables. For further information, see the wiring diagram.

Check the cable terminals in the female and male sections of the connector. The cable terminals must not be damaged or pressed back.
Check the signal cable between audio module (AUD) terminal #B1 and treble speaker/upper loudspeaker terminal #2 in the front left door. Check for a short-circuit to ground. Check for a short-circuit to supply voltage.
Check the signal cable between audio module (AUD) terminal #B9 and treble speaker/upper loudspeaker terminal #1 in the front left door. Check for a short-circuit to ground. Check for a short-circuit to supply voltage.
Remedy as necessary.

Other information
- Connecting the breakout box Connecting The Breakout Box, Audio Module (AUD)
- Signal specification Signal Description, Audio Module (AUD)
- Audio module (AUD), replace Audio Module (AUD), Replace Audio module (AUD), replace Audio Module (AUD), Replace
- Loudspeaker, side door front Loudspeaker, Side Door Front
- 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 there is sound heard from the loudspeakers for the audio module (AUD) by trying the FM/AM radio, CD or MD player.

Is the function OK?

Yes - Fault Found

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.


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