does anyone know how to reset the computer in a 2010 Nissan Maxima, besides by disconnecting the negative terminal. Or is that something that only the dealer could do?

 

Not sure.....are you by chance throwing any codes? Depending on what is going on, a total ECU reset will not happen with just a simple power interruption.

 

Well its not where the check engine light is on so I dont think it should be throwing codes but I havent had her scanned. Reason y im asking id because my abs, slip, and vdc lights are all on and I posted on here regarding that issue and everyone told me to replace my brakes and refill the brake fluid which I did, but I only replaced the fronts, im gunna try and see if replacing the backs will make them go away, think im gunna do that next week since Im gunna spend a good sum of money on her Friday to get her ready for a supposedly big car meet

 

If you think you need to try the following you are doing it on your own accord. I have neither attempted this nor guaranty it will even work....I take no responsibility for anything that may occur...good or bad.

ECU Resetting Procedures

Timing is extremely critical. If it is NOT DONE within the specify time, the ECU will not reset and the Check Engine Light (CEL) will continue to remain ON.
A stop watch or an analog clock with a seconds needle will be useful.

Operations Procedures

1. Confirm that accelerator pedal is fully released, turn ignition switch ON and wait 3 seconds.
2. Repeat the following steps (2a and 2b) procedures quickly five times within 5 seconds.
2a. Fully depress the accelerator pedal (HARD).
2b. Fully release the accelerator pedal.
3. Wait 7 seconds, fully depress the accelerator pedal and keep it for approx. 10 seconds until the CEL starts blinking.
4. Fully release the accelerator pedal (while the CEL is still blinking)
5. Wait about 10 second.
6. Fully depress the accelerator pedal and keep it for more than 10 seconds.
7. Fully release the accelerator pedal (The CEL light will continue to blink).
8. Turn ignition switch to OFF position and now you can start the car. The CEL light should be gone.

If the CEL light continues to remain ON, repeat the above steps. Timing is EXTREMELY critical to resetting the ECU.

 

Idk if I want to try that lol, im just gunba replace the rear brakes and see if it goes away

 

I use that method once a week. its safe just be sure you get the timing down or else it doesn't work at all


Posted from Maxima.org App for Android

 

What would be the reason to reset your ECU weekly? What benefits do you see by doing that?

Just curious as I would only think a reset is appropriate after an install that effects ratios, etc...

 

i second that question, unless your doing some kind of modifications to your car every week, which is not possible with the 7th gen max since there is only an abundant amount of parts for it

 

Get the computer scanned. Most shops do it for free. It sounds like you may have possibly a bad or disconnected wheel speed sensor. You can reset the computer all you want but if its what I said you will continually have the problem. I see a lot of lowered cars coming to my shop with broken VSS wires or even shattered sensors from stuff kicking up off the ground. Just my 2 cents worth. Good luck. Let me know if I can help.

 

Personally the only way I've reset mine was to disconnect the battery, and that's only cause I had to get a new one.

 

I was having an issue where I was losing power it seemed after all my mods. I never reset the ECU using the accelerator pedal method, I only disconnected the battery which reset my radio and still didn't notice any increase. i believe this has never been done for my car since 2012 but I CAN say that after performing the ECU reset via the accelerator pedal method paired with accurate timing, I noticed HUGE gains and increases in responsiveness. It truly feels like all of my mods are finally working together. I have included the steps below and recommend performing ALL of the steps.

ECU Resetting Procedures:

Timing is extremely critical. If it is NOT DONE within the specify time, the ECU will not reset and the Check Engine Light (CEL) will continue to remain ON. A stop watch or an analog clock with a second’s needle will be useful.

Operations Procedures

1. Confirm that accelerator pedal is fully released, turn ignition switch “ON” and wait 3 seconds.
2. Repeat the following steps (2a and 2b) procedures quickly five times within 5 seconds.
2a. Fully depress the accelerator pedal (HARD).
2b. Fully release the accelerator pedal.
3. Wait 7 seconds, fully depress the accelerator pedal and keep it for approx. 10 seconds until the CEL starts blinking.
4. Fully release the accelerator pedal (while the CEL is still blinking)
5. Wait about 10 second.
6. Fully depress the accelerator pedal and keep it for more than 10 seconds.
7. Fully release the accelerator pedal (The CEL light will continue to blink).
8. Turn ignition switch to “OFF” position and now you can start the car. The CEL light should be gone.
If the CEL light continues to remain ON, repeat the above steps. Timing is EXTREMELY critical to resetting the ECU.

Edit: Added the "Easy Method" for ECU Reset

The Easy Method:

Timing is not as critical with this method...no stop watch needed. Just count in your head...one-one thousand, two-one thousand, etc, or use stop watch. The most critical step is step #3....wait 10 sec, instead of 7.

1. Ignition "ON", count to 3.
2. Depress/Release pedal 5 times...hard and fast.
3. Count to 10 (not 7!) and fully depress pedal
4. Count to 12 (SES should be blinking), release pedal
5. Count to 10, depress pedal
6. Count to 10, release pedal.
7. Turn off ignition, then start engine. Done!

Accelerator Pedal Release Position Learning

Operation Procedure

1. Make sure that the accelerator pedal is fully released.
2. Turn ignition switch “ON” and wait at least 2 seconds.
3. Turn ignition switch “OFF” wait at least 10 seconds.
4. Turn ignition switch “ON” and wait at least 2 seconds.
5. Turn ignition switch “OFF” wait at least 10 seconds.

Throttle Valve Closed Position Learning

Operation Procedures

1. Make sure that accelerator pedal is fully released.
2. Turn ignition switch is “ON”.
3. Turn ignition switch is “OFF” wait at least 10 seconds.
Make sure that the throttle valve moves during above 10 seconds by confirming the operating sound.

Idle Air Volume Learning (Throttle Position Learning)

It is better to count the time accurately with a clock.

Operation Procedures

1. Perform “Accelerator Pedal Released Position Learning”.
2. Perform “Throttle Valve Closed Position Learning”.
3. Start engine and warm it up to normal operating temperature.
4. Turn ignition switch “OFF” and wait at least 10 seconds.
5. Conform that accelerator pedal is fully released, turn ignition switch “ON” and wait 3 seconds.
6. Repeat the following (steps 7a, 7b) procedures quickly five times within 5 seconds.
7a. Fully depress the accelerator pedal (HARD)
7b. Fully release the accelerator pedal.
8. Wait 7 seconds, fully depress the accelerator pedal and keep it for approx. 20 seconds until the Check Engine Light (CEL) stops blinking and turned ON.
9. Fully release the accelerator pedal within 3 seconds after the CEL is ON.
10. Start engine and let it idle.
11. Wait 20 seconds.
12. Rev up the engine two or three times and make sure the idle speed and ignition timing are within the specifications.

 

[QUOTE=dr_2010SV;8828368]If you think you need to try the following you are doing it on your own accord. I have neither attempted this nor guaranty it will even work....I take no responsibility



Trying to reset my ECU! SWITCHED OUT ENGINE WIRING HARNESS everything's connected fuses good engine cranked but wouldn't start. Now won't crank at all. Yellow key light on red light flashes but doesn't do anything.

 

Your method is to erase codes; right? My issue is I accidently hit the positive terminal of my battery and made contact with the body of the vehicle causing the ECM to act out(my fuel pump stays on, and my injectors keep clicking even though the car never started). No wire is burned. I was wondering if the ECM could self-reprogram, and how?