GM Service Manual Online
For 1990-2009 cars only

Class 2 Serial Data Line

The class 2 serial data line CKT 1807 (PPL) is wired to the DLC at terminal 2.

The control modules on the class 2 serial data line can include the flowing:

    • Cellular Telephone Module
    • Continuously Variable Road Sensing Suspension (CVRSS) Module
    • Dash Integration Module (DIM)
    • Driver Door Module
    • Electronic Brake and Traction Control Module (EBTCM)
    • Inflatable Restraint Sensing and Diagnostic Module (SDM)
    • Instrument Cluster (IPC)
    • Instrument Panel Integration Module (IPM)
    • Memory Seat Module (MSM)
    • Navigation Data Processor
    • Powertrain Control Module (PCM)
    • Radio
    • Radio Amplifier
    • Remote Keyless Entry (RKE) Module
    • Rear Integration Module (RIM)
    • Steering Column Module
    • Theft Deterrent Module