NOTE: Self-diagnostic tests are written specifically for Chrysler's Diagnostic Readout Box (DRB III(R)) scan tool. A generic scan tool may not be capable of performing all necessary test functions.

The body control computer system consists of a combination of modules that communicate over the Chrysler Collision Detection (CCD) bus system. Through the CCD 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. The instrument cluster, Powertrain Control Module (PCM), Sentry Key Immobilizer Module (SKIM) and air bag control module are connected to CCD bus.

The following body control computer systems are covered.

CCD Bus Communications
Instrument Cluster
Sentry Key Immobilizer System

Body control computer fault messages are accessed through 16-pin Data Link Connector (DLC) using Chrysler's Diagnostic Readout Box (DRBIII(R)) scan tool or generic scan tool. DLC is located on left side of steering column, above brake pedal. See Fig 1 .

Fig 1: Locating 16-Pin Data Link Connector (DLC)

Courtesy of CHRYSLER CORP.

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.

• Brakes feel soft, pull hard to one side, or make grinding noises.

• The engine overheats, stalls repeatedly, or misfires under load.

• You are missing required tools, torque specs, or safe lifting equipment.

• You are not confident in the next step or safety outcome.

Safety Warning

Body Control Modules: Description

Use the Manual With the Right Hardware

When to See a Mechanic

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