For 1990-2009 cars only
Class 2 Serial Data Link
The Class 2 serial data link is used so the following modules can communicate data with each other:
| • | The Body Control Module (BCM) |
| • | The Electronic Brake Control Module (EBCM) |
| • | The Inflatable Restraint Sensing and Diagnostic Module (SDM) |
| • | The Instrument Panel Cluster |
| • | The Powertrain Control Module (PCM) |
| • | The Heater-A/C Control |
