DeVille DTS V8-4.6L VIN 9 (2002)
Information Bus: Description and Operation
Class 2 Serial Data Line
A total list of the control modules on the class 2 serial data line can include the following:
^
The audio amplifier
^
The cellular telephone module W/UV8
^
The Dash Integration Module (DIM)
^
The digital radio receiver
^
The Driver Door Module (DDM)
^
The Driver Door Switch Assembly (DDSA)
^
The Electronic Brake Control Module (EBCM)
^
The Electronic Suspension Control Module (ESC)
^
The Front Passenger Door Module (FPDM)
^
The inflatable restraint Sensing And Diagnostic Module (SDM)
^
The Instrument Panel Cluster (IPC)
^
The Instrument Panel Integration Module (IPM)
^
The HVAC control module - auxiliary
^
The Left Middle Door Module (LMDM) W/V4U
^
The Left Rear Door Module (LRDM)
^
The Memory Seat Module (MSM) W/A45
^
The Powertrain Control Module (PCM)
^
The radio
^
The Rear Integration Module (RIM)
^
The Remote Control Door Lock Receiver (RCDLR)
^
The remote playback device CD changer
^
The Right Middle Door Module (RMDM) W/V4U
^
The Right Rear Door Module (RRDM)
^
The steering column module
^
The theft deterrent control module
^
The Vehicle Communication Interface Module (VCIM)
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The window switch - front passenger W/armored car
The class 2 serial data line is a ring/star configuration with discrete circuits entering and leaving each module. This allows communications to the
modules on the ring portion of the class 2 serial data circuit if one of the 2 discrete circuits is open.
The following modules are on the ring portion of the class 2 serial data circuit. Therefore if there is an open in the class 2 serial data circuit
communication will still occur:
^
The dash integration module (DIM)
^
The digital radio receiver
^
The electronic brake control module (EBCM)
^
The inflatable restraint sensing and diagnostic module (SDM)
^
The instrument panel cluster (IPC)
^
The instrument panel integration module (IPM)
^
The Powertrain Control Module (PCM)
^
The radio
^
The remote playback device CD changer
The following modules are connected to the star portion of the class 2 serial data circuit by splice packs and have only one communication line
connection to the class 2 serial data circuit. Therefore if the class 2 serial data line is open to any of these modules communication will not occur:
^
The audio amplifier
^
The cellular telephone module W/UV8
^
The driver door module (DDM)
^
The driver door switch assembly (DDSA)
^
The electronic suspension control module
^
The front passenger door module (FPDM)
^
The HVAC control module - auxiliary
^
The left middle door module (LMDM) W/V4U
^
The left rear door module (LRDM)
^
The memory seat module (MSM) W/A45
^
The rear integration module (RIM)
^
The remote control door lock receiver (RCDLR)
^
The right middle door module (RMDM) W/V4U
^
The right rear door module (RRDM)
^
The steering column module W/N37
^
The theft deterrent control module
^
The vehicle communication interface module (VCIM)
