General Information

The fault can be due to a customer or workshop replacing a control module without downloading new software for the replacement.

Corrective actions 

1. Download the latest software into the Subwoofer Module (SUB).
2. If downloading new software did not help, replace the Subwoofer module (SUB).

Fig 1: Identifying Subwoofer Module (SUB)

Courtesy of VOLVO CARS CORPORATION

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  Refer to VERIFICATION