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

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

Normal Operation
An open circuit VDB04 (WH/BU) (HS-CAN +) or VDB05 (WH) (HS-CAN -) may cause intermittent or unreliable communication to all modules on the HS-CAN. The HS-CAN is used for communication between the following modules:
- ABS module
- Instrument cluster (IC)
- Occupant classification system module (OCSM)
- PCM
- Restraints control module (RCM)
- Transmission control module (TCM) (6R60 transmission only)
- 4X4 control module (if equipped)

In the event that one 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

S1:

S1-S2:

S3-S5:

S6-S11:

S12: