GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Saturn 🢒 2009 🢒 VUE - AWD 🢒 Diagnostic Navigation 🢒 Vehicle Diagnostic Information 🢒 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.

Control Module

Data Link Type

Diagnostic Procedure

Schematic Reference: Data Communication Schematics

Accessory Power Module (APM) Two-mode hybrid only

Powertrain expansion bus

Communicates through the engine / powertrain control module

Air Conditioning Control Module (ACCM) Two-mode hybrid only

Low Speed GMLAN

Scan Tool Does Not Communicate with Low Speed GMLAN Device

Automatic Occupant Sensing (PPS) Module

Low Speed GMLAN

Scan Tool Does Not Communicate with Low Speed GMLAN Device

Battery Energy Control Module (BECM) Two-mode hybrid only

High Speed GMLAN

Scan Tool Does Not Communicate with High Speed GMLAN Device

Body Control Module (BCM)
    • High Speed GMLAN
    • Low Speed GMLAN

Scan Tool Does Not Communicate with High Speed GMLAN Device

Scan Tool Does Not Communicate with Low Speed GMLAN Device

Brake inertial sensor (IS) Two-mode hybrid only

Powertrain expansion bus

Communicates through the engine / powertrain control module

Digital Radio Receiver (DRR)

Low Speed GMLAN

Scan Tool Does Not Communicate with Low Speed GMLAN Device

Electronic Brake Control Module (EBCM)

High Speed GMLAN

Scan Tool Does Not Communicate with High Speed GMLAN Device

Engine / Powertrain Control Module (ECM/PCM)

High Speed GMLAN

Scan Tool Does Not Communicate with High Speed GMLAN Device

Fuel System Control Module (FSCM)

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

Instrument Panel Cluster (IPC)

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

Passenger Door Module

Low Speed GMLAN

Scan Tool Does Not Communicate with Low Speed GMLAN Device

Power Steering Control Module (EPS)

High Speed GMLAN

Scan Tool Does Not Communicate with High Speed GMLAN Device

Radio

Low Speed GMLAN

Scan Tool Does Not Communicate with Low Speed GMLAN Device

Rear Differential Clutch Control Module (CCM)

High Speed GMLAN

Scan Tool Does Not Communicate with High Speed GMLAN Device

Rear Power Inverter Module (RPIM) Two-mode hybrid only
    • High Speed GMLAN
    • Powertrain expansion bus

Scan Tool Does Not Communicate with High Speed GMLAN Device

Rear Seat Audio Module

Low Speed GMLAN

Scan Tool Does Not Communicate with Low Speed GMLAN Device

Remote Control Door Lock Receiver

Low Speed GMLAN

Scan Tool Does Not Communicate with Low Speed GMLAN Device

Rollover Sensor (ROS)

Low Speed GMLAN

Scan Tool Does Not Communicate with Low Speed GMLAN Device

Serial Data Gateway Module, Two-mode hybrid only
    • High Speed GMLAN
    • Low Speed GMLAN
    • Powertrain expansion bus

Scan Tool Does Not Communicate with High Speed GMLAN Device

Scan Tool Does Not Communicate with Low Speed GMLAN Device

Slip Control Boost (SCB) Module, integral to EBCM on two-mode hybrid

High Speed GMLAN

Scan Tool Does Not Communicate with High Speed GMLAN Device

Starter Generator Control Module (SGCM) Two-mode hybrid only

High Speed GMLAN

Scan Tool Does Not Communicate with High Speed GMLAN Device

Theft Deterrent Module (TDM)

Low Speed GMLAN

Scan Tool Does Not Communicate with Low Speed GMLAN Device

Traction Power Inverter Module (TPIM) Two-mode hybrid only
    • High Speed GMLAN
    • Powertrain expansion bus

Scan Tool Does Not Communicate with High Speed GMLAN Device

Transmission Control Module (TCM)

High Speed GMLAN

Scan Tool Does Not Communicate with High Speed GMLAN Device

Universal Park Assist (UPA) Module

Low Speed GMLAN

Scan Tool Does Not Communicate with Low Speed GMLAN Device

Vehicle Communication Interface Module (VCIM)
    • High Speed GMLAN - pass through only
    • Low Speed GMLAN

Scan Tool Does Not Communicate with Low Speed GMLAN Device