My check engine light stays on and nothing reads on computer when checked, why doesn't any codes show up

Asked by Sep 24, 2014 at 12:34 AM about the 2003 Chevrolet S-10 2 Dr LS Standard Cab LB

Question type: Maintenance & Repair

4 Answers

31,995

There are hidden codes only the dealer can get to.

83,315

Get a better scan tool, if the light is on there are some codes.

4,145

are you sure its the check engine light and not the maintenance light?

31,995

Good point Jonathan.

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