ECU codes and resetting

Jan 10th, 2003, 02:55 PM

Where is the ECU located on a 2000 Sentra? Also, how do I go about resetting the ECU?

Thanks!
Sean

Jan 10th, 2003, 03:02 PM

Forgot to mention that I brought this to a dealer and they told me the O2 sensor needed to be replaced, hence the reason why the CEL was on...thanks

Mr SEntra · Jan 10th, 2003, 08:22 PM

Quote:

Originally posted by SeanF77
Forgot to mention that I brought this to a dealer and they told me the O2 sensor needed to be replaced, hence the reason why the CEL was on...thanks

Okay...so how come the dealership didn't reset the ECU for you while you were there? Pulling up codes will take a OBD-II scanner, which will read the exact codes you have and will also help to clear codes.

I used to think that just removing the negative terminal of the battery resetted the ECU, but I'm not sure for the B15 Sentra. It's probably a sure fire bet you can just take it to the dealership and have them reset it. Are you just wanting to know how to reset it or clear the codes?

Pardon my monkeyness.

Jan 10th, 2003, 08:56 PM

Good question.....I have no idea if they did or didn't to be honest. All I know is that after they diagnosed the problem, the CEL is still on and has been on. Iw as just looking to reset the ECU and shut the damn light off for now

Mr SEntra · Jan 10th, 2003, 09:01 PM

Hehe..

Well, if the problem still exists, it'll just come up sooner or later anyways. I know that the SES/CEL light is annoying as all hell. After I got my SES light on when I didn't relocate my O2 sensor, it was driving me nuts. I finally broke down and had the dealership clear my faults. No SES light from then on.