Class 2 Serial Data Link
WARNING: This page is about a different car, the 2002 Oldsmobile Intrigue. However, it is still accessible from the selected car via links, so may be relevant.
The class 2 serial data link allows the following modules to communicate and share data with each other:
- Powertrain control module (PCM)
- Inflatable restraint sensing and diagnostic module (SDM)
- Electronic Brake Control Module (EBCM)
- Instrument Cluster (IPC)
- Heater-A/C Control (w/CJ2)
- Body Control Module (BCM)
- Radio
- OnStar
The class 2 serial data link allows a scan tool to communicate with the above modules for diagnostic and testing purposes.