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Test V: Intermittent No High Speed Controller Area Network (HS-CAN) Communication, One Or More Modules Are Not Responding Durin

PINPOINT TEST V: INTERMITTENT NO HIGH SPEED CONTROLLER AREA NETWORK (HS-CAN) COMMUNICATION, ONE OR MORE MODULES ARE NOT RESPONDING DURING NETWORK TEST

Normal Operation
The high speed controller area network (HS-CAN) uses an unshielded twisted pair cable, circuits VDB04 (WH/BU) and VDB05 (WH). The PCM, the accessory protocol interface module (APIM), the ABS module, the restraints control module (RCM), the occupant classification system module (OCSM), the 4X4 control module (if equipped), the steering angle sensor module (SASM) (if equipped), the headlamp control module (HCM) (if equipped) and the instrument cluster (IC) all communicate with the scan tool using the HS-CAN.

In the event that 1 of the 2 network circuits (HS-CAN + or HS-CAN -) becomes open to a module on the network, unreliable network communication to all modules on the network may result.

This pinpoint test is intended to diagnose the following:
- Wiring, terminals or connectors


V1:






V1-V2:






V3-V6:






V7-V15:






V16-V17: