Signal Missing

Signal missing

Checking the component and wiring








- Ignition off
- Disconnect the connector for the loudspeaker in the right front door.
Check the cable terminals. Check for contact resistance, loose connections and oxidation.

Note! Only visually check the treble loudspeaker. Check for oxidation and loose connections. Do not carry out any electrical fault-tracing on the treble loudspeaker.

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 control module (AUD) terminal #B3 and loudspeaker terminal #2 in the right front door. Check for an open-circuit.
Check the signal cable between audio control module (AUD) terminal #B11 and loudspeaker terminal #1 in the right front door. Check for an open-circuit.

Hint: Also check the connector between the audio control module (AUD) and the loudspeaker in the right front door for contact resistance, loose connections and oxidation.

Check loudspeaker connector terminals #1 and #2 in the right front door. Check for an open-circuit.
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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