Reseting the On-Board Diagnostics System (Cars Computer)
25

Asked by donloeffler Sep 30, 2007 at 09:10 AM about the 2004 Chevrolet Impala FWD

Question type: Maintenance & Repair

My car was operating perfectly until I disconnected a connector near the oil flter (believe the wire to the connector comes from the manifold) so that I could replace the oil filter.  I drove with the wire off for over 50 miles and the Check Engine Light came on.  My Question is:  Can I reset the On-Board-Diagnostics System (Computer) to distinguish the Check Engine Light, assuming  there is no other problem.  Also, what must I do to reset this System (computer) and will it harm or cause other problems with the car.  Also, when I reset the system what must I do to return the car to normal.

2 Answers
84,375

littlehorn answered 17 years ago

If you reconnected the connector, the system will reset itself given about 100-150 miles of driving with the connector in place and working. You can get Advance Auto parts to reset your computer for free, or you can have it done at a dealership. It should cause no other problems, however, if the problem was NOT your disconnected connector, the light will come back on if the root cause is not fixed.

4 people found this helpful.
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GuruWNZBS answered 6 years ago

My husband changed my oil and my change oil keeps coming on. Now my check engine light keeps coming on. And my abs light stays on as well. How do o fix these issues?

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