How do you reset the computer system in a 1999 Cadillac Catera?
May 18, 2009 at 11:03 AM
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MMPRINCE4000
✓ASE Certified Mechanic
8,548 POSTS
If you are trying to erase error codes, go to most autoparts stores and have them erased by scanner.
Otherwise, disconnect negative battery cable for 3-5 minutes.
If PCM problems persist, take to dealer or trusted garage and have PCM reflashed.
May 18, 2009 at 8:01 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.