Start the Jeep (if you can), shift the trans in all gears then back to Park, turn the AC on then off.

Turn the Jeep on off, on off, on off, on within 5 seconds

The codes are transmitted as 2 digit flashes, like this code 21 will be "Flash Flash" pause "Flash"

Write down the codes as they come up, they only repeat if you do this
again.

I'm not going to list the codes here because thats just nuts, but if you tell me what you get I will reply with the code problem.

This works with 1991-1996 Jeep Grand Cherokee, and it may work on others but I dont know.

Hope this info helps if you needed it.

Some info on variations to the above for different years:

http://www.allpar.com/fix/codes.html

And a good code look-up page:

http://www.troublecodes.net/chrysler/

Some info on variations to the above for different years:

http://www.allpar.com/fix/codes.html

And a good code look-up page:

http://www.troublecodes.net/chrysler/

Great links!

I was in no way shape or form going to try to write all the codes here, it would be different if I could coppy and paste it from my CDROM program but it will not let me, and printing it out and scaning it back with Text bridge would have been silly. So asking what year of Jeep along with the code would work.