Test C: The ABS Module Does Not Respond To The Scan Tool

PINPOINT TEST C: THE ABS MODULE DOES NOT RESPOND TO THE SCAN TOOL

Normal Operation
The ABS module communicates with the scan tool through the high speed controller area network (HS-CAN). Circuits VDB04 (WH/BU) (HS-CAN +) and VDB05 (WH) (HS-CAN -) provide the network connection to the ABS module. Voltage for the ABS module is provided by circuit CBP19 (BN/WH). Ground is provided by circuit GD123 (BK/GY).

The ABS module shares the HS-CAN with the following modules:
- ABS module
- Accessory protocol interface module (APIM) (if equipped)
- Instrument cluster (IC)
- Occupant classification system module (OCSM)
- PCM
- Restraints control module (RCM)
- Transmission control module (TCM) (if equipped)
- 4X4 control module (if equipped)

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

C1:

C1-C3:

C3-C4: