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

PINPOINT TEST P: 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). The audio control module (ACM), DVD, driver seat module (DSM) (if equipped), electronic automatic temperature control (EATC) or electronic manual temperature control (EMTC) module, satellite digital audio receiver system (SDARS) module (if equipped) and smart junction box (SJB) communicate with the scan tool using the MS-CAN network. The instrument cluster, while on the MS-CAN network, communicates with the scan tool only on the HS-CAN network.

This pinpoint test is intended to diagnose the following:
- Wiring, terminals or connectors
- Audio control module (ACM)
- DVD player
- Driver seat module (DSM)
- Electronic automatic temperature control (EATC) module (if equipped)
- Electronic manual temperature control (EMTC) module (if equipped)
- Instrument cluster
- SDARS (if equipped)
- Smart junction box (SJB)

P1-P2:

P3-P4:

P5-P7:

P7-P8:

P8-P10:

P10-P13:

P13-P16:

P17-P19:

P19-P22:

P22-P25:

P25-P27:

P28-P32:

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