Emission Control Systems: Service and Repair

ECM Location:

CHECK ENGINE LIGHT RESET
1. Turn the ignition key on.
2. Turn the diagnostic mode selector on the ECU fully clockwise and wait more than two seconds then turn the selector fully counterclockwise. The ECCS system is now in mode 2.
3. Turn the diagnostic mode selector on the ECU fully clockwise and wait more than two seconds then turn the selector fully counterclockwise. The ECCS system is now in mode 1.
ECU memory is now erased.