You can do the key method for 96 and 97 and 99+ but for the 98 you unfortunately need a code reader.idahjo said:I tried the "off-on-off-on-off-on" thing and got nothing to display. Have manuals for '97 and '99, but not the '98. Doesn't the '97 make the odometer display and the '99 require a reader tool? And, what about the '98?
thanks
Nope, you're wrong. On 96 and 97 odbII vehicles you can still do key on key off trick. 99 and above has some sort of a key trick as well, although it works slightly different. Only the 98 one absolutely requires the code reader.jeepsrock said:The idea is you can only do the key trick on obd-1 jeep meaning up to 95-96 and anything other than that and to do it right you need the obd-2 reader that plugs into the jeeps computer plug.
pete
RichP said:If you are planning on keeping it a few years go spend the bucks on a factory service manual and an OBD II code reader, Actron makes one for about $150 and AA sells them. It will also reset codes. Very handy item to have when that check engine light comes on and you are wondering WTF, wonder if it's a code, a bad code or a really bad code.
CJHVN said:Sorry to drag out an old thread, but what's the "on-off-on" combination to get the trouble codes on an OBD I comp on a 92 XJ?
Check engine light just came on and I'd like to find out what's going on.
Thanks!
I have tried every "key trick" that there is on my 2001. The only way to read the codes is with a reader. There are no "key tricks" for the 2001. I sincerely doubt that there are for the '99 or '00 either.Kejtar said:99 and above has some sort of a key trick as well...
The "dance of the needles" is just a dashboard and idiot light test. It will not provide you with the MIL codes that a reader will.8700XJS said:I just tried the "on" "off" thing on my '00 and was able to see the dance of the needles.
Your information is incorrect. Please see the earlier posts on this thread.jeepsrock said:The code tricks will only work with OBD I systems most system 97+ are OBD II and therfore will give you a cluster test but no codes. For codes you will have to get or rent a reader.
Pete