Diagnostic Trouble Code (DTC) Information AUD-0023

Condition 

Fig 1: Identifying Rear Left Loudspeaker

Courtesy of VOLVO CARS OF NORTH AMERICA.

The diagnostic trouble code (DTC) is stored if the Audio module (AUD) registers that the signal on the signal cable from one or both front loudspeakers is too high or too low.

The diagnostic trouble code can be diagnosed when Audio module (AUD) is activated.

Substitute Value 

• None.

Possible Source 

• The signal cable between the loudspeaker in the right-hand door and the control module has a short-circuit to supply voltage.
• Short-circuit to voltage in the signal cable between the control module and the loudspeaker in the right door.
• Short-circuit to voltage in the signal cable between the control module and the loudspeaker in the left door.
• Short-circuit to ground in the signal cable between the control module and the loudspeaker in the left door.

Fault symptom[s] 

• No sound from the loudspeakers.