GM Service Manual Online
For 1990-2009 cars only

DTC Descriptor

This diagnostic procedure supports the following DTC:

DTC B0035 Fascia Communication Bus Failure

Conditions for Setting the DTC

With the ignition in either the Accessories position or the On position, DTC B0035 will set to indicate that an error has occurred in communication between the main PCB and the audio system fascia.

If DTC B0035 is set, replace the audio system head unit. Refer to Radio Replacement .