how do i reset 4th gen ECU?
Joined: Nov 2004
Posts: 533
From: Long Island, NY/Tampa, FL
There is a screw on the ecu by the gas pedal. You must remove the plastic panel to the right of the gas pedal to expose the screw. It will have tape over it you must remove. Turn the key to the run position. Then turn the screw clockwise as far as it will go for 2 seconds. Then turn it counter clockwise until it stops again. Repeat those steps again and that will reset the ecu. So you turn the screw clockwise then counter clockwise a total of 2 times. Sorry if it's confusing. I'll try to find the web page that explains how to do it better.
Joined: Nov 2004
Posts: 533
From: Long Island, NY/Tampa, FL
Ever try reading the stickys on the top of this forum (4th generation)
http://forums.maxima.org/showthread.php?t=104931
http://forums.maxima.org/showthread.php?t=104931
Originally Posted by nguyen925
i think you can unplug the battery and leave it over night? it worked for me..and then the CEL popped up 15 minutes later
You can reset the ECU this way, but are not doing anything to fix the problem.
When you reset it the way that is done in the stickys, you're actually getting a code with respect to why it turned on in the first place. Now you have a starting point at fixing the problem, and eliminating the light.
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