Data Link References
This table identifies which serial data link that a particular module uses for in-vehicle data transmission. Some modules may use more than one data link to communicate. Some modules may have multiple communication circuits passing through them without actively communicating on that data link. This table is used to assist in correcting a communication malfunction. For the description and operation of these serial data communication circuits refer to Data Link Communications Description and Operation .
Data Link References
| Control Module | Data Link Type |
|---|---|
| Engine Control Module (ECM) | GM LAN |
| Powertrain Interface Module (PIM) |
|
| Instrument Cluster Panel (IPC) | UART Serial Data |
| Body Control Module (BCM) | UART Serial Data |
| Inflatable Restraint Sensing and Diagnostic Module (SDM) | UART Serial Data |
| Electronic Brake Control Module (EBCM) | GM LAN |
| Radio | UART Serial Data |
| Transmission Control Module (TCM) | GM LAN |