Preferred method is a scantool but you can disconnect the negative battery cable for 30 secs be advised doing this will cause the radio presets and clock setting be lost. Or go to Autozone its free and get it cleared-
Oct 27, 2009 at 12:10 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.