Celica Forums General Discussion General How do I reset my ECU?

I've read that people have reseted their ECU.
How can I do that. My car is stock, but just asking for info.

just disconnect the negative terminal on your battery. Wait about 10 minutes, then reconnect it. That's all you have to do.

Hmm. Ok. then since I changed my battery and the wire was disconnected, then I already reseted my ECU.
Thanks

you can either dis the neg. terminal, or remove a fuse, and it'll reset the ecu.

what does it do by reseting the ecu anyways?

nothing really but if you have a bunch of red line shifts and take it to toyota with that are your ECU they will give you a harder time gettting stuff covered under warranty.

yup. one service call I made the tech asked me if I had fun doing that burnout cause there were all kinds of codes that can only indicate a burnout. Idiot. I have NEVER done a burnout in my car. Said that the front tires had turned a lot more than the rear, odd. Seeing as how it was winter and it is a front wheel drive car! duh. of course the front wheels turn more than the rear tires.

^^ or it could just mean you drive in circles a lot

but anyway, resetting the ecu just resets everything. when i change my own oil i get a CEL, so i reset my ecu so i don't have to go to toyota or a dealer just to get them to turn it off and say 'yup, that's good oil allright'

if they can really tell how many redline shifts i have i am IN TROUBLE

^^ditto

That sounds weird. Why would you get a CEL after an oil change? I never get CEL and I have exhaust Intake etc.

^^ i dunno, but i do. i use synthetic oil though--don't know if that makes a difference

anyway, after i reset my ecu the CEL goes off-and stays off.