Data Link References
WARNING: This page is about a different car, the 2008 Pontiac G8. However, it is still accessible from the selected car via links, so may be relevant.
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 .
| Control Module | Data Link Type | Diagnostic Procedure |
|---|---|---|
| Schematic Reference: Data Communication Schematics . | ||
| Automatic Headlamp Levelling Control Module | High Speed GMLAN | Scan Tool Does Not Communicate with High Speed GMLAN Device |
| Bluetooth Module | Non-GMLAN | - |
| Body Control Module (BCM) |
|
Scan Tool Does Not Communicate with High Speed GMLAN Device |
| Electronic Brake Control Module (EBCM) | High Speed GMLAN | Scan Tool Does Not Communicate with High Speed GMLAN Device |
| Electronic Suspension Control Module | High Speed GMLAN | Scan Tool Does Not Communicate with High Speed GMLAN Device |
| Engine Control Module (ECM) | High Speed GMLAN | Scan Tool Does Not Communicate with High Speed GMLAN Device |
| HVAC Control Module | Low Speed GMLAN | Scan Tool Does Not Communicate with Low Speed GMLAN Device |
| Inflatable Restraint Sensing and Diagnostic Module (SDM) | Low Speed GMLAN | Scan Tool Does Not Communicate with Low Speed GMLAN Device |
| Instrument Panel Cluster (IPC) | Low Speed GMLAN | Scan Tool Does Not Communicate with Low Speed GMLAN Device |
| Memory Mirror Module | Non-GMLAN | - |
| Memory Seat Module (MSM) | Non-GMLAN | - |
| Navigation Unit | Non-GMLAN | - |
| Navigation Interface Module | Low Speed GMLAN | Scan Tool Does Not Communicate with Low Speed GMLAN Device |
| Object Alarm Module | Low Speed GMLAN | Scan Tool Does Not Communicate with Low Speed GMLAN Device |
| Rear Seat Entertainment Interface Module | Low Speed GMLAN | Scan Tool Does Not Communicate with Low Speed GMLAN Device |
| Remote Function Actuator (RFA) | Low Speed GMLAN | Scan Tool Does Not Communicate with Low Speed GMLAN Device |
| Secondary Information Centre | Low Speed GMLAN | Scan Tool Does Not Communicate with Low Speed GMLAN Device |
| Seat Interface Module | Low Speed GMLAN | Scan Tool Does Not Communicate with Low Speed GMLAN Device |
| Steering Angle Sensor | High Speed GMLAN | Scan Tool Does Not Communicate with High Speed GMLAN Device |
| Theft Deterrent Control Module | Low Speed GMLAN | Scan Tool Does Not Communicate with Low Speed GMLAN Device |
| Transmission Control Module (TCM) | High Speed GMLAN | Scan Tool Does Not Communicate with High Speed GMLAN Device |
| Telematics Module | Low Speed GMLAN | Scan Tool Does Not Communicate with Low Speed GMLAN Device |