Checking Codes

[94TAGT]

So I have a code reader key instead of the paper clip. Does the same thing the paper clip does. Here is the problem, I put the key in and turn the ignition to run without starting and the SES light goes blank, idiot lights do there thing, and the fans kick on. The SES light will not blink to even show the all clear "12". It is the 12 pin and not the 16. Any ideas?

[Joe 1320]

Without the code reader in place, does the SES light iluminate when you put the ignition key to run but not start it?

[Rob B (shoebox)]

So I have a code reader key instead of the paper clip. Does the same thing the paper clip does. Here is the problem, I put the key in and turn the ignition to run without starting and the SES light goes blank, idiot lights do there thing, and the fans kick on. The SES light will not blink to even show the all clear "12". It is the 12 pin and not the 16. Any ideas?

The paper clip (shorting the pins) method will not work on a 94. You need a real scanner to read the codes.

[94TAGT]

Without the code reader in place, does the SES light iluminate when you put the ignition key to run but not start it?

Sure does.

[94TAGT]

The paper clip (shorting the pins) method will not work on a 94. You need a real scanner to read the codes.

I just read that about 5 minutes ago on an internet search. Time to spend more money on a cable and a computer program, BLAH! LOL!!!

[94TAGT]

Initially the reason I needed the code was due to a SES light coming on after about 20 minutes of driving every time I went somewhere. Performance was not comprimised so I had no clue what was setting it off. Then I realized when I cleaned the throttle body and MAF I forgot to plug in the IAT. After I plugged it back in I had no more SES. But it made me want to see any codes that might be hiding anyways. Thanks for the help guys! Any links for a good program and cable?

[Trash man]

if you search amazon or ebay you might get a nice obd-1 scanner adn the GM chip for cheap now-a-days, esp since obd-II has been out since 97, might be a better alternative, esp will alot of dealers closing down, my old shop i worked for picked up two scanners(obd-II) loaded with all the forgein and gm codes and whatnot

[Injuneer]

Why not buy a new/modern scanner that will read both OBD-I and OBD-II PCM's. They are not all that expensive. Look to Actron or AutoXray. You're going to be owning OBD-II vehicles, and its going to be useful for years to come.

Or you can get a used, simple OBD-I AutoXray scanner for less than $100 these days.

[94TAGT]

Why not buy a new/modern scanner that will read both OBD-I and OBD-II PCM's. They are not all that expensive. Look to Actron or AutoXray. You're going to be owning OBD-II vehicles, and its going to be useful for years to come.

Or you can get a used, simple OBD-I AutoXray scanner for less than $100 these days.

Do they come with the CAN style like on the new GM's? My wifes Acadia has that.

[Trash man]

Fred - OBD-II is on its way out, they are going to a new style, some chrylsers have and a few gms now, its a Can-Bus i beleive, it prioritizes commands(if you are trying to go to full throttle but a misfire happens it will throw the check engine like before it goes to full throttle

[Injuneer]

Many current scanners incorporate CAN Bus, in addition to OBD-I and OBD-II.