The air suspension control module does not communicate on any data link. For additional information refer to Diagnostic Trouble Code (DTC) Displaying .
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 Link Connector Schematics | ||||||
Body Control Module (BCM) | Class 2 | |||||
Communication Interface Module (OnStar®), w/UE1 | Class 2 | |||||
Digital Radio Receiver (DRR), w/U2K | Class 2 | |||||
Driver Door Module (DDM) | Class 2 | |||||
Driver Seat Module (DSM), w/AAB | Class 2 | |||||
DVD Player | Class 2 | |||||
Electronic Brake Control Module (EBCM) | Class 2 | |||||
Endgate Module (EGM), for XUV | Class 2 | |||||
Engine Control Module (ECM), w/5.3L |
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HVAC Control Module | Class 2 | |||||
HVAC Control Module - Rear Auxiliary | Class 2 | |||||
Inflatable Restraint Sensing and Diagnostic Module (SDM) | Class 2 | |||||
Instrument Panel Cluster (IPC) | Class 2 | |||||
Liftgate Control Module (LGM), except XUV | Class 2 | |||||
Passenger Door Module (PDM) | Class 2 | |||||
Power Roof Module (PRM), for XUV | Class 2 | |||||
Powertrain Control Module (PCM), w/4.2L | Class 2 | |||||
Radio | Class 2 | |||||
Theft Deterrent Control Module (VTD), w/BAE | Class 2 | |||||
Transfer Case Shift Control Module (TCSCM), w/4WD | Class 2 | |||||
Transmission Control Module (TCM) | High Speed GMLAN |