Class 2 Serial Data Link
WARNING: This page is about a different car, the 2006 Buick LaCrosse and 2006 Buick Allure. 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:
- Body control module (BCM)
- Digital radio receiver
- Electronic brake control module (EBCM)
- Engine Control Module (ECM) (LY7)
- Instrument panel cluster (IPC)
- HVAC module
- Powertrain control module (PCM) (L26)
- Radio
- Inflatable restraint sensing and diagnostic module (SDM)
- Vehicle control interface module (VCIM)
The class 2 serial data link allows a scan tool to communicate with the above modules for diagnostic and testing purposes.