Class 2 Serial Data Link

The data link is configured as a ring with discrete lines entering and leaving each module. This allows communications to the modules on the ring it one of the two discrete circuits is open.

A total list of the control modules on the Class 2 Serial Data Line can include the following:
^ Dash Integration Module (DIM)
^ Driver Door Module (DDM)
^ Electronic Brake Control Module (EBCM)
^ Head Up Display (HUD) with UV6
^ HVAC Control Module with C67
^ Inflatable Restraint Sensing and Diagnostic Module (SDM)
^ Instrument Panel Cluster (IPC)
^ Instrument Panel Integration Module (IPM) with CJ2
^ Memory Seat Module (MSM) with A45
^ powertrain Control Module (PCM)
^ Radio
^ Rear Integration Module (RIM)
^ Remote Control Door Lock Receiver (RCDLR)
^ Remote Playback Device - CD Changer with U1S
^ Theft Deterrent Control Module
^ Vehicle Interface Unit (VIU)

The following modules have only one communication line connection to the Class 2 data circuit:
^ Driver Door Module (DDM)
^ Head Up Display (HUD)
^ Memory Seat Module (MSM)
^ Vehicle Interface Unit (VIU)

"For a description of the RPO Code(s) shown in this article or any of the images therein, refer to the RPO Code List found at Vehicle/Application ID". RPO Codes