I am looking for the ecu on my 1999 pathfinder so that I can do a code check and SES code clear (reset), any help would be great. The SES light came on after running the gas tank very low. I removed the negative battery post and now the SES light is out but I would like to do a further check to see if anything comes up. I dont see much under the passenger seat...... where else??

Above the gas pedal behind the dash. The diagnostic mode selector screw is on the top.

Above the gas pedal behind the dash. The diagnostic mode selector screw is on the top.


Does the radio deck need to be removed to get to the diagnostic screw on top??

Does the radio deck need to be removed to get to the diagnostic screw on top??


OK , i found some instuctions how to get to this screw, it sounds like its FUN.