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.
Diagnostic Procedure: Notes
Diagnostic procedures are designed to detect system faults as quickly as possible. Body control computer system diagnostic fault messages are accessed through Data Link Connector (DLC). See Figure . Chrysler's Diagnostic Readout Box (DRB) scan tool or generic scan tool, is used to access information from DLC.
A 1999 diagnostic program cartridge, scan tool, body diagnostics cable, jumper wires and digital volt/ohmmeter will be needed for testing. Proceed to IDENTIFYING VEHICLE EQUIPMENT & SYSTEM PROBLEMS under SYSTEM ID TEST in appropriate BODY CONTROL COMPUTER TESTS article.
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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.