the check engine light came on on my 1989 nissan sentra. there doesnt seem to be a problem , what could be the cause?
2007-03-08 14:15:35 · 11 answers · asked by Anonymous in Cars & Transportation ➔ Car Makes ➔ Nissan
1) Sit in the driver's seat.
2) Turn the ignition key to the ON position and wait three seconds. (Do not start the car.)
3) Fully depress and release the accelerator pedal five times in less than five seconds.
4) Wait exactly seven seconds. Fully depress the accelerator pedal for ten seconds until the check engine light flashes.
5) Hold down the accelerator pedal again for more than 10 seconds while the CE light is blinking. That should reset it.
2007-03-08 14:29:04 · answer #1 · answered by Chevy Girl 3 · 1⤊ 1⤋
As others indicated, a serious problem could be occurring with your vehicle and you might want to find out what the problem is before blindly clearing the light. I can't recall for certain but I think every 30,000 miles the light would come on in my 1985 Sentra asking me to take the car in for service (believe related to emissions). I did most of the work myself so I researched this a bit and found a location to reset it on my car. Not sure if it is the same location on your model or not. Take a look in the front passenger side on the side wall under the glove box. Mine had a square bronze box (less than 2x2x1) with a small piece of tape covering a hole on the bottom. I was able to take a small screw driver (anything long and narrow would work) and press a reset switch inside the box to disable the light until the next interval for service.
2007-03-12 05:07:21 · answer #2 · answered by Jim Maryland 7 · 0⤊ 1⤋
1989 Nissan
2016-11-12 08:22:15 · answer #3 · answered by Anonymous · 0⤊ 0⤋
Here's your answer plus how to retrieve any codes stored in the ECU. Sorry but I can't display the images here. If you get a code other than 55 then write me and let me know what it is and I'll look it up for you.
READING DIAGNOSTIC CODES
The Electronic Control Unit (ECU) monitors several engine sensors and actuators. If a problem occurs the information is stored in the ECU's memory for retrieval.
The codes are displayed by the green and red diodes on the ECU. When the codes are extracted they are interpreted by the number of times the diodes flash.
The red diode will flash "X" number of times, this will represent units of ten, then the green diode will flash "X" number of times, this will represent units of one.
For example, if the red diode flashes once and the green diode flashes twice this should be interpreted as code 12. The codes are displayed in numerical order starting with the lowest and ending with the highest.
EXTRACTING DIAGNOSTIC CODES
Access the ECU from under the R.F. seat and position it for observing the diodes.
If the engine does not run, turn the key on and proceed to step #4.
Start the engine and warm it to operating temperature then idle.
Fig. 52 Selecting Modes
Turn the diagnostic mode selector on the ECU fully clockwise until both diodes flash 3 times then turn the selector fully counterclockwise. The ECCS system is now in mode 3.
If the diodes do not illuminate, refer to ELECTRICAL COMPONENT AND CIRCUIT DIAGNOSIS and perform the ECU MAIN POWER AND GROUND CIRCUIT test.
Fig. 55 Inspecting E.C.U. Lamps
Observe the diodes and note the code(s) displayed. Note: Code 55 indicates all systems are OK.
Fig. 172 Trouble Code Chart
ERASING DIAGNOSTIC CODES
1. Turn the ignition key on.
2. Turn the diagnostic mode selector on the ECU fully clockwise until both diodes flash 4 times then turn the selector fully counterclockwise. The ECCS system is now in mode 4.
3. Turn the ignition key off. This will return the ECCS system to mode #1 (normal operating mode). ECU memory is now erased.
2007-03-09 16:13:41 · answer #4 · answered by quick_ridez 4 · 1⤊ 0⤋
The first thing you need to do is think if you really want to turn it off. The second thing to do is check the fuse panel to see if you can take the fuse out for the dash board panel that has the check engine light on it. If you do take the fuse out that means that if any of those other lights come on you wont be able to tell it because they wont light up. If you know someone really good who could get under the hood and cut the wire to that might be the best bet. These are just my opinions and not necessarily the best answer to your question.
2007-03-08 14:21:15 · answer #5 · answered by fantasirose 1 · 0⤊ 3⤋
It's under warranty. Take it to your Nissan dealer and have them check it out. You will not be charged unless it's due to driver error like leaving the gas cap loose. Even if you did leave your gas cap loose they may shut off the light for free if they don't do any repairs.
2016-03-28 23:54:05 · answer #6 · answered by ? 4 · 0⤊ 1⤋
ok dude this is the thing i have a toyota camry 1999... the light always turned on didn't matter if it was cold or hot. My dad checked the car, he said there seemed nothing wrong with it... so what he did was he disconnected the battery waited 10 seconds an connected it back on... IT WORKED!!!! and the light never comes up again..
2007-03-08 14:24:34 · answer #7 · answered by xX_0o_Xx 3 · 0⤊ 2⤋
The check engine light is almost always a concern with the emission control. not your engine at all, and for the handy sum of $300 they can fix it right up and turn the light off for you.
2007-03-08 14:19:17 · answer #8 · answered by sweet1also 2 · 0⤊ 3⤋
Have someone pull the codes for you and then replace the component that is faulty. If that already had been done.....then disconnect your battery ground wire for at least a minute then reconnect it. It should be off unless you have other faulty components.
2007-03-09 12:08:51 · answer #9 · answered by vsMechanic68 2 · 1⤊ 2⤋
take it to a mechanic with a computer to diagnose the problem what may seem like nothing can turn into a big problem if you ignore it
2007-03-08 17:06:58 · answer #10 · answered by frittsit 2 · 0⤊ 1⤋