This dial is used to access the stored engine codes. Do not start the vehicle.įind the screw dial on the ECU. Place the starting key into the ignition and turn the key until the electronics mode is engaged. Remove the two nuts (usually 10mm) holding the device in place to fully access the ECU.
Locate the ECU under the driver's side dash of the Nissan.
#How to stop ecu diagnostics full
Leave the cables disconnected for an additional 5 minutes to ensure full depletion of energy from the ECU capacitors, then reconnect the battery cables. 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.