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.
2000 Cadillac DeVille BaseFACTORY OEM SERVICE PROCEDURE
Symptom Tests: Notes
Before performing any system tests, check body control modules for Diagnostic Trouble Codes (DTCs). Repair any existing DTCs first. See BODY CONTROL MODULES - DEVILLE article. If no DTCs exist, see SYMPTOM INDEX table.
SYMPTOM INDEX
| Symptom | Test |
|---|---|
| Remote Keyless Entry System Inoperative | A |
| Panic Mode Inoperative | B |
| Second Operation Inoperative With Transmitter | C |
Factory Service Tools
Use the Manual With the Right Hardware
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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.