Where is the ECU on 96 Pathfinder

eric_c · Apr 23rd, 2004, 07:31 AM

Hey Guys,

The check engine light came on yesterday, and I'd like to run the self-diagnosis procedure I found here, but I can't locate the ECU. Anybody know?

Does the self-diagnosis work on Pathfinders (turn the screw on the ECU, turn the key in the ignition, count the flashes)?

lewisnc100 · Apr 23rd, 2004, 07:56 AM

It's located up and behind the dash above the gas pedal, just look for a large shiny silver case with a ton of wires going in and out. Here's a post of mine in the past about using the diagnostic mode selector screw:

http://www.nissanforums.com/showthread.php?t=20211

I do this all the time without pulling the PCM out of the dash, just takes practice to reach the screw and turn it in such a tight space. Also keep in mind that the flashes will be long and short flashes but the codes will then need to be translated into the actual P-codes. For example, an EVAP small leak will flash 7 longs and 5 shorts on the dash or 0705, but this is actually P-code P0440. Also an inspector's mirror really helps locate the screw. Good luck, post back if you have any problems getting to the screw.