Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Body Control Modules: Description
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.
Diagnostic Trouble Codes (DTCs) 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, right of steering column.
Body control module systems covered in this article are as follows:
- Chime system.
- Compass/Mini-Trip Computer (CMTC).
- Door ajar system.
- Exterior lighting.
- Mechanical instrument cluster.
- Interior lighting.
- Windshield wipers.
- Power door locks.
- Remote keyless entry.
- Vehicle information center.
- Vehicle Theft Security System (VTSS).
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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.