Diagnostic Trouble Code (DTC) Information Sub-B1A0813

Condition

Subwoofer module (SUB) checks the signal on the signal line to the voice coil in right bass speaker.

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

Signal missing on the signal cable to voice coil in the right bass speaker.

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

Start up of the MOST network.

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 Subwoofer Module (SUB)

Courtesy of VOLVO CARS CORPORATION

Substitute Value

None.

Possible Source

Open-circuit in the signal cable between the amplifier and voice coil in the bass loudspeaker.

Fault symptom[s]

Audio other/Other audio problems
No sound from subwoofer