If your talking about the check engine lite, taking the negative battery cable loose for a few seconds may work. If there is a problem and the problem still exists, it may just come back on.
Oct 4, 2009 at 9:07 AM
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.