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 | ||||||||||
Advanced Parking Assist Control Module | Low Speed GMLAN | |||||||||
Body Control Module |
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Chime Alarm Control Module | Low Speed GMLAN | |||||||||
Compass Module | Local Interconnect Network (LIN) | |||||||||
Content Theft Deterrent Sensor Module | Local Interconnect Network (LIN) | |||||||||
Digital Radio Receiver Control Module | Mid Speed GMLAN | |||||||||
Driver Door Switch Panel Control Module | Local Interconnect Network (LIN) | |||||||||
Driver Mirror Control Module | Local Interconnect Network (LIN) | |||||||||
Electronic Brake Control Module | Chassis High Speed GMLAN | Scan Tool Does Not Communicate with Chassis High Speed GMLAN Device | ||||||||
Engine Control Module | High Speed GMLAN | |||||||||
Front Seat Heating Control Module | Low Speed GMLAN | |||||||||
Fuel Pump Control Module | High Speed GMLAN | |||||||||
Headlamp Control Module | High Speed GMLAN | |||||||||
Headlamp High Beam Control Module | Low Speed GMLAN | |||||||||
Inflatable Restraint Sensing and Diagnostic Module | Low Speed GMLAN | |||||||||
Info Display Module | Local Interconnect Network (LIN) | |||||||||
Infotainment Faceplate Control Module | Local Interconnect Network (LIN) | |||||||||
Inside Rear View Mirror | Local Interconnect Network (LIN) | |||||||||
Instrument Cluster | Low Speed GMLAN | |||||||||
Keyless Entry Control Module | Low Speed GMLAN | |||||||||
Left Front Window Motor Module | Local Interconnect Network (LIN) | |||||||||
Left Headlamp Module | Local Interconnect Network (LIN) | |||||||||
Left Rear Door Switch Panel Control Module | Local Interconnect Network (LIN) | |||||||||
Left Rear Window Motor Module | Local Interconnect Network (LIN) | |||||||||
Liftgate Control Module | Low Speed GMLAN | |||||||||
Memory Seat Control Module | Low Speed GMLAN Local Interconnect Network (LIN) | |||||||||
Mobile Telephone Control Module |
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Multi-axis Acceleration Sensor Module | Chassis High Speed GMLAN | Scan Tool Does Not Communicate with Chassis High Speed GMLAN Device | ||||||||
Parking Assist Control Module | Low Speed GMLAN | |||||||||
Parking Brake Control Module | High Speed GMLAN | |||||||||
Parking Heater Control Module (GME Only) | Low Speed GMLAN | |||||||||
Passenger Door Switch Panel Control Module | Local Interconnect Network (LIN) | |||||||||
Passenger Mirror Control Module | Local Interconnect Network (LIN) | |||||||||
Passenger Presence Detection Module | Low Speed GMLAN | |||||||||
Power Sounder Content Theft Deterrent Alarm Module | Local Interconnect Network (LIN) | |||||||||
Radio (Base) |
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Radio (High Content Navigation) |
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Radio (In-Dash CD Changer) |
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Radio (Medium Content Navigation) |
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Radio (Rear Seat Entertainment Lite) |
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Rain/Ambient Light Sensor Module | Local Interconnect Network (LIN) | |||||||||
Rear Differential Clutch Control Module | Chassis High Speed GMLAN | Scan Tool Does Not Communicate with Chassis High Speed GMLAN Device | ||||||||
Remote Heater and Air Conditioning Control Module | Low Speed GMLAN | |||||||||
Right Front Window Motor Module | Local Interconnect Network (LIN) | |||||||||
Right Headlamp Module | Local Interconnect Network (LIN) | |||||||||
Right Rear Door Switch Panel Control Module | Local Interconnect Network (LIN) | |||||||||
Right Rear Window Motor Module | Local Interconnect Network (LIN) | |||||||||
Steering Angle Sensor Module | Chassis High Speed GMLAN | Scan Tool Does Not Communicate with Chassis High Speed GMLAN Device | ||||||||
Steering Column Lock Control Module | Low Speed GMLAN | |||||||||
Sunroof Sunshade Motor Module | Local Interconnect Network (LIN) | |||||||||
Sunroof Window Motor Module | Local Interconnect Network (LIN) | |||||||||
Suspension Control Module | Chassis High Speed GMLAN | Scan Tool Does Not Communicate with Chassis High Speed GMLAN Device | ||||||||
Tire Pressure Sensor Locator Module | Local Interconnect Network (LIN) | |||||||||
Trailer Interface Control Module | Low Speed GMLAN | |||||||||
Transmission Control Module | High Speed GMLAN | |||||||||
Transmission Range Indicator Module | Local Interconnect Network (LIN) | |||||||||
Variable Power Steering Control Module | High Speed GMLAN | |||||||||
Vehicle Communication Interface Module (VCIM) |
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Vehicle Direction Camera Control Module | Low Speed GMLAN | |||||||||
