![]() This allows for the capacitors (which store energy) in the ECU to fully deplete. Pump the breaks or press the horn several times to drain the remaining power from the vehicle's electrical system. The Check Engine light should now be off and the ECU reset.ĭisconnect the negative (black) cable from the car battery terminal, place to the side and ensure it does not touch the vehicle.ĭisconnect the positive (red) cable from the car battery terminal, place to the side and ensure it does not touch the vehicle. ![]() Start the engine and examine the instrument panel. Turn off the ignition and wait about three minutes. Press the accelerator to the floor and hold it for 10 seconds, or until the "Check Engine" light turns on and off. You have to press the pedal all the way to the floor each time. ![]() Press down on the accelerator very fast five times within five seconds. Put the key in the ignition and turn it to the "On" position, but don't start the engine.
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