Data Link Communications Circuit Description & Operation
WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2002 GMC Yukon XL, 2002 GMC Yukon, 2002 Chevrolet Tahoe, 2002 Chevrolet Suburban, and 2002 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
The Class 2 serial data link allows modules to transmit, receive, or exchange data between each other:
- HVAC Control Module (HCM)
- Rear Wheel Steering Module (RWS)
- Suspension Control Module (SCM)
- Active Transfer Case (ATC)
- Electronic Brake Control Module (EBCM)
- Powertrain Control Module (PCM)
- Transmission Control Module (TCM)
- OnStar® Module (ONS)
- Body Control Module (BCM)
- Instrument Panel Cluster (IPC)
- Driver Information Center (DIC)
- Mirror Memory Module (MMM)
- Memory Seat Module (MSM)
- Inflatable restraint Sensing and Diagnostic Module (SDM)