Test N: The Auxiliary Audio Module Does Not Respond To The Scan Tool

PINPOINT TEST N: THE AUXILIARY AUDIO MODULE DOES NOT RESPOND TO THE SCAN TOOL

N1-N2:

N2-N3:

N4:

Normal Operation
Circuits VDB06 (GY/OG) (MS-CAN +) and VDB07 (VT/OG) (MS-CAN -) provide the network connection to the auxiliary audio module. The auxiliary audio module shares the MS-CAN network with the instrument cluster, the smart junction box (SJB), the electronic manual temperature control module (if equipped), the electronic automatic temperature control (EATC) module (if equipped), the audio unit, the THX(R) amplifier (if equipped), the satellite radio receiver (if equipped), the driver seat module (DSM) (if equipped), the power running board module (if equipped), the parking aid module (if equipped), the power liftgate module (if equipped) and the climate controlled seat module (if equipped). Voltage for the auxiliary audio module is provided by circuit SBP03 (BU/RD). Circuit GD114 (BK/BU) provides ground.

Possible Causes
- Fuse
- Circuit GD114 (BK/BU) open
- Circuit SBP03 (BU/RD) open
- Circuit VDB06 (GY/OG) open (MS-CAN +)
- Circuit VDB07 (VT/OG) open (MS-CAN -)
- Auxiliary audio module