Test M: The Satellite Radio Receiver Does Not Respond To The Scan Tool

PINPOINT TEST M: THE SATELLITE RADIO RECEIVER DOES NOT RESPOND TO THE SCAN TOOL

M1:

M2-M3:

M4:

Normal Operation
The satellite radio receiver communicates with the scan tool through the medium speed controller area network (MS-CAN). Circuits VDB06 (GY/OG) (MS-CAN +) and VDB07 (VT/OG) (MS-CAN -) provide the network connection to the satellite radio receiver. The satellite radio receiver shares the MS-CAN network with the instrument cluster, the electronic automatic temperature control (EATC) module (if equipped), the dual automatic temperature control (DATC) module (if equipped), the audio unit, the THX(R) amplifier (if equipped), the driver seat module (DSM) (if equipped), the driver door module (DDM) (if equipped) and the climate controlled seat module (if equipped). Voltage for the satellite radio receiver is provided by circuit SBP15 (WH/RD). Circuit GD148 (BK/YE) provides ground.

Possible Causes
- Fuse
- Circuit GD148 (BK/YE) open
- Circuit SBP15 (WH/RD) open
- Circuit VDB06 (GY/OG) open (MS-CAN +)
- Circuit VDB07 (VT/OG) open (MS-CAN -)
- Satellite radio receiver