Diagnostic Trouble Code (DTC) Information AUD-B1A0613

Condition

The Audio module (AUD) checks the signal in the signal cable to the central loudspeaker.

The diagnostic trouble code (DTC) is stored if the control module detects that:

Signal missing in the signal cable to the central loudspeaker.

The control module's test for the diagnostic trouble code (DTC) starts in the event of:

Start up of the MOST network.
Request for self-test.

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.

Fig 1: Identifying Loudspeaker

Courtesy of VOLVO CARS CORPORATION

Substitute Value

None.

Possible Source

Open-circuit on the signal cable between the center loudspeaker and the control module.
Open-circuit in the loudspeaker.

Fault symptom[s]

No sound from loudspeakers