Check engine light stays on for ten second then blink six times then go off

SOURCE: Check engine light is on and ECU blings 12 times.

you use the button that resets your trip odometer to reset the maintenance light.

with the key in the ignition but not turned on, hold the trip reset button in with one hand. then, while holding the button in, turn the ignition key to the ON position so that the lights on the dash come on.

continue to hold the reset button in and watch the maintenance light. it will take about 15 seconds for the light to go out

when the light goes out, turn the ignition key OFF and then release the trip reset button.

your light will be reset and come on in about another 5000 miles to remind you of the next service

hope that helps

Colin Stickland

• 22516 Answers
• Posted on Apr 13, 2012

SOURCE: 1991 honda civc DX, what does twenty short blinks on the ECU mean. car is idling fast while cold and warm. what does that mean?

1991 will have a throttle cable for this car i would have thought ,just not familar with this what is obviously a american market model and possibly even a californian spec so this is way out of this europeon mechanics league .But if it does have a idle control valve then its possible that the ECU is faulty try measuring the voltage going to the valve ,4 wires and it reverses the current to go backwards or forewards ,so two wires go one way and the other two make it go the other way ,use a multi meter and see what you get ,also check the brake servo as if a diaphragm leak the it will **** in air making it idle high