Question about 1992 Jeep Cherokee Sport

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I have a maintenance required dummy light that is on. We changed out the O2 sensor and it is still on. What else might it be?

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It is not due to a fault. The light comes on automatically at ceratin mileage intervals. The dealer can reset the light with their scan tool. Not sure if any generic scan tools can reset it. Google it, and you'll see there are lots of people that just take the bulb out...

Posted on Oct 09, 2010


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If that comes back okay, I would then start looking at the drivetrain. Change fluids, re-grease and look for obvious problems with the brake pads/rotors while tires are off.

Sorry that there is no sure answer to this question, but at least you have a point to start looking from.

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