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Question by mount21
Submitted on 2/21/2004
Related FAQ: rec.autos.makers.chrysler FAQ, Part 1/6
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How can I display my 'check engine' codes on a '98 Grand Cherokee? - thanks

Answer by chrandi
Submitted on 3/6/2004
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Referred to book to double check, but as far as I can tell you can only access them in vehicles 1991-1996. After that you need a scan tool.


Answer by Terri
Submitted on 3/27/2004
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I have a 97 Grand Cherokee Laredo.  I can access the codes without the scan tool.  Here is how I do it.  

Start the car, switch the trans into all gears and then back to park.  Turn on the air conditioning and then turn it off.  Turn off the car.  turn the key quickly 4 times just to the point before starting. On the fourth time, leave it.  IF done right, you will see a flash and then all the dash lights will go dim.  Watch where the mileage is... you should see some flashing numbers.  These are the codes.   They will flash 2-3 times.  When you see the number 55 you are done.  Keep pen and paper handy to write them down as they go pretty fast.  GOOD LUCK!


Answer by CWD10
Submitted on 4/29/2004
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You don't need to do all that. Just do a key on key off cycle three times in a row WITHOUT starting it. Like this ON-OFF-ON-OFF-ON. Observe codes. There will be a brief pause in between them, and then a code 55 which means end of codes.


Answer by davespcrepair
Submitted on 5/9/2004
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If your check engine light stays on try turning the key switch on and off 3 times. Leave the key on the third time (may take a few tries with 1 sec between, then wait 10 sec to see if it flashes 2 didget codes for sensor code failures) this should show engine fault codes ( count the flashes in 2 didget form ) like 12...is have disconnected the battery, 55 is the last code, there should be some between them. My odometer on the 96 even shows didgets for the codes, if not count the flashes and refer to a service manual.  Hope this helps davespcrepair@hotmail.com (don't check this email everyday) but let me know.   Dave  :o)


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