Test R: No Medium Speed Controller Area Network (MS-CAN) Communication, All Modules Are Not Responding

PINPOINT TEST R: NO MEDIUM SPEED CONTROLLER AREA NETWORK (MS-CAN) COMMUNICATION, ALL MODULES ARE NOT RESPONDING

Normal Operation
The MS-CAN uses an unshielded twisted pair cable, circuits VDB06 (GY/OG) and VDB07 (VT/OG).

This pinpoint test is intended to diagnose the following:
- Wiring, terminals or connectors
- SJB
- Instrument cluster (IC)
- Accessory protocol interface module (APIM) (if equipped)
- Audio control module (ACM)
- Audio digital signal processing (DSP) module (if equipped)
- Heating ventilation air conditioning (HVAC) module (if equipped)
- Parking aid module (PAM) (if equipped)
- Driver door module (DDM) (if equipped)
- Driver seat module (DSM) (if equipped)
- Dual climate control seat module (DCSM) (if equipped)
- Satellite digital audio receiver system (SDARS) module (if equipped)

R1-R2:

R2-R4:

R5-R7:

R7-R8:

R8-R10:

R10-R13:

R13-R16:

R17-R21:

R21-R25:

R25-R28:

R28-R30:

R30-R34:

R34-R38:

R38-R42:

R42-R45:

R46-R48:

R49-R52:

R53-R56:

R57: