Cadillakin'98

working on my sisters blazer right now, want to reset the computer, already disconected the - cable and pulled fuses to ECM. But just wondering if the is an actual reset button anywhere. My buddy had a '95 S-10 that had one underneath the ECM, and since these things are built on the same frames, just wondering if the ECM reset would be similar. Oh yeah, my sisters is a '96 model (4dr LT-if it makes a difference)Thanx

BlazerLT

You are doing the right thing.

there is no reset button anywhere.

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GMMerlin

I'm going to call bullshit on that one....In 22 years with GM I have never seen a reset button for a computer.

Are you trying to clear the codes after a repair? If so, leave the battery disconnected for a while, this should wipe out current stored DTC data.

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Why do you never have enough time or money to do the job right the first time, but enough time and money to do it again?
Got all the certifications
25 years ASE Certified Master Technician
GM WCT
Yea..I work at a DEALERSHIP....got a problem with that?

Cadillakin'98

Could have sworn I saw it when we swapped his 4 banger and dropped a 4.3 in its place. (It was the ECM for the 4 cylinder)

But hey, I believe you, you're the one w/ 22yrs under your belt. (We also had been drinkin' then)

In any case, cleaned my sisters air intake, MAS, throttle body (or thing that looks like a throttle body on fuel injection anyway), EGR, PCV, and other unrelated stuff, reset the ECM, and thus far, no codes have popped up. Glad I decided to do this rather than replace the other 3 out of 4 O2 sensers the computer was reading. Saved about $160 if thats all it needed.

ricksza

The only button to clear codes is on a scanner.

Fireplug

GMMerlin
The only car and truck Sold by GM that had a emission reset button was in the GEO line. At a set milage the check engine light would come on and there was a reset button to turn it off.

BlazerLT

Man, that would be handy to have on every vehicle.

Like a computer reset instead of removing the negative batery terminal and removing the ECM fuses can be tedious sometimes.

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1995 Factory Blazer Service Manual for sale, PM if interested.

Skeeter6755

I agree, thank god for reset buttons on computers though, since on one of my machines I have to do it ALL the time. (Because it is running windows )

Fireplug

It would have been nice if they would have put it in a nice place but noooo they put it under the driver side dash panel and up real high near the windshild and it was a real trick to get at. And pulling the fuse or battery did not reset it.