Body Control Modules: Description

The body control computer system consists of a combination of modules that communicate over the Programmable Communication Interface (PCI) bus multiplex system. Through the PCI bus, information related to the operation of vehicle components and circuits are relayed to the appropriate system module(s). This reduces the complexity of vehicle wiring and size of wiring harness.

Diagnostic Trouble Codes (DTC) are accessed through a 16-pin Data Link Connector (DLC) using Chrysler's Diagnostic Readout Box (DRBIII(R)) scan tool or generic scan tool. DLC is located under driver's side of instrument panel, left of steering column.

Body control module systems covered in this article are as follows:

• Chime system.
• Communication.
• Door ajar system.
• Exterior lighting.
• Heated glass.
• Instrument cluster.
• Interior lighting.
• Memory system.
• Power door locks.
• Power liftgate.
• Power sliding door.
• Remote keyless entry.
• Vehicle information center (overhead console).
• Vehicle Theft Security System (VTSS).
• Wiper/washer system.