Check Engine Light - JeepForum.com
 
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post #1 of 2 Old 09-13-2003, 09:33 AM Thread Starter
Fisher
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1985 CJ7 
 
Join Date: Aug 2003
Posts: 7
Check Engine Light

Hey Guys,
I saw a same kind of problem a while back. Somebody replied with a way to find out what the light is on for....a series of turning the ignition on and off....Does anyone know how to figure this out? Fisher

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post #2 of 2 Old 09-15-2003, 09:43 AM
automan25
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Join Date: Dec 2002
Location: Kenmore, WA
Posts: 290
Start with key in ignition, all doors closed, and all power accessories turned off. Turn key to "On" (not "Start") position; this should be two clicks forward. Then turn key to "Off". Repeat one more time. Finally turn key back to "On" and leave it there. Wait about 20 seconds. The "Check Engine" light will begin to flash the code sequence. The sequence will begin and end with a 5. For example if you have codes 42 and 36 stored in the computer, then the sequence would look like this:

5, long pause, 4, short pause, 2, long pause, 3 short pause, 6, long pause, 5

Write down the codes and cross reference then with the ones listed in the Chilton manual, or the factory service manual.

1993 ZJ Limited 5.2 - no mods - Red with Gold (what were they thinking) trim.
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