Procedure to reset Check Engine/SES Light - Nissan Forums : Nissan Forum
 
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post #1 of 7 Old 04-24-2003, 08:00 PM Thread Starter
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Procedure to reset Check Engine/SES Light

For anyone who needs it:

In car ECM Diagnostics/ECM Reset procedure:

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 MIL light flashes.
5) Release the accelerator pedal and start counting flashes to obtain the four-digit trouble code.

Long flashes (0.6 seconds) indicate the first digit of the code; count the blinks one through nine and write down the first digit. (Ten blinks indicates a zero.)
The next three digits follow in turn in the same fashion except with faster blinks (0.3 second) and a 1.0-second pause between digits.

The ECM code repeats intself until you turn the ignition key to the OFF position, at which point the ECM resets itself to standard get-in-and-drive-the-car mode.
You can look up the trouble codes in the ESM/FSM; there's a bunch of them. In the ESM, refer to page EC-639.
Additionally, if you get four blinks of ten (0000), the ECM is indicating no malfunction.

You can clear the code (and the annoying MIL) by holding down the accelerator pedal for more than 10 seconds while in Diagnostic Test Mode II. When you release the pedal, the ECM erases the trouble code(s).

Moderator please sticky.


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post #2 of 7 Old 04-24-2003, 08:08 PM
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Damn, pls tell me you did not invent this by yourself, that takes a lot of credit...........Awesome Job !
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post #3 of 7 Old 04-24-2003, 08:27 PM Thread Starter
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DesiEGO:

I wish I could come up with this on my own! As I run across stuff that works, I put it in a file and pull it out when needed.

I got this from nissan forums . com (remove spaces).

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post #4 of 7 Old 07-14-2009, 03:29 AM
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wuts Diagnostic Test Mode II? i need to reset code

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post #5 of 7 Old 07-14-2009, 03:40 AM
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Quote:
Originally Posted by DesiEGO View Post
Damn, pls tell me you did not invent this by yourself, that takes a lot of credit...........Awesome Job !
That procedure is out of the factory service manual. There is also one like this to check DTCs for the automatic transmission, but I've tried it many times and never seems to work. Dadster ... have you tried the auto tranny procedure and made it work?


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Originally Posted by dadster View Post
3) Fully depress and release the accelerator pedal five times in less than five seconds.
One hint here on this step. I found that if you did the 5 gas pedal depress and releases cycles as fast as possible (5 times in 3 seconds) that it seemed to work better.
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post #6 of 7 Old 08-13-2009, 12:27 AM
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MIL light

Is the MIL light you refer to the same as the Sevice Engine Soon Light? If not where is the MIL Light located. I tried to reset my SES light but haven't had any luck as of yet.

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post #7 of 7 Old 08-13-2009, 12:50 AM
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Y'all do realize this thread is from 2003 right???

This is also covered in the FAQ (frequently asked questions) portion of the forum.

The key to resetting the SES is all in the timing. SES (Service Engine Soon) is the same as an MIL (Malfunction Indicator Light) and a CEL (Check Engine Light).



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