Signal Too High/Signal Too Low

Signal too high/signal too low

Checking the cable








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

Hint: Both treble loudspeaker/upper loudspeakers and the right and left-hand front base loudspeakers are connected on the following signal cables.

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 #B3 and treble speaker/upper loudspeaker terminal #2 in the right-hand 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 #B11 and treble speaker/upper loudspeaker terminal #1 in the right-hand 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 #B1 and treble speaker/upper loudspeaker terminal #2 in the left-hand 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 left-hand 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 Specification, Audio Module (AUD)
- Audio Module Audio Module
- Loudspeaker, side door front Loudspeaker, Front 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 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 - 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 cable

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