Test H: The Restraints Control Module (RCM) Does Not Respond to the Scan Tool

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

H1-H2:

H2-H3:

H4:

Normal Operation
The RCM communicates with the scan tool through the International Standards Organization (ISO) 9141 communication network. Circuit 70 (LB/WH) provides the network connection to the RCM. The RCM shares the ISO network with the parking aid module and the four wheel drive (4WD) control module. Voltage for the RCM is provided by circuit 609 (OG/YE). Circuit 649 (BK/OG) provides ground.

Possible Causes
- Fuse
- Circuit 70 (LB/WH) open
- Circuit 609 (OG/YE) open
- Circuit 649 (BK/OG) open
- RCM