Test C: The Restraints Control Module (RCM) Does Not Respond To The Scan Tool

PINPOINT TEST C: THE RESTRAINTS CONTROL MODULE (RCM) DOES NOT RESPOND TO THE SCAN TOOL

C1-C3:

C4-C5:

Normal Operation
The RCM 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 RCM. The RCM shares the HS-CAN network with the PCM, the ABS module, the occupant classification sensor module, the four wheel drive (4WD) control module (if equipped), the adaptive front lighting module (if equipped), the steering angle sensor module (if equipped) and the instrument cluster. Voltage for the RCM is provided by circuit CBP46 (WH/BU), and the RCM is case grounded.

This pinpoint test is intended to diagnose the following:
- Fuse
- Wiring, terminals or connectors
- Case ground open
- RCM