Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information IAM-B1A031B

Condition
The integrated audio module (IAM) checks impedance in the rear left door speaker.
The diagnostic trouble code (DTC) is stored if the control module detects that:
- Impedance too high.
The control module's test for the diagnostic trouble code (DTC) starts in the event of:
- Start-up of the control module.

Note! The control module can only detect the fault once the test has been started and the diagnostic trouble code (DTC) is stored when the conditions are met.





Substitute value
- None.

Possible source
- Open-circuit in the signal cable between the loudspeaker in the left rear door and the control module.
- Open-circuit in the loudspeaker.

Fault symptom[s]
- No sound from loudspeakers