Posted on Nov 04, 2009

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Code #12 ,#43,and #55 on 97 jeep grand cherokee lerado 4.0l what do these codes mean

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Anonymous

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Posted on Nov 04, 2009

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Anonymous

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Posted on Dec 16, 2008

SOURCE: engine code 95 jeep grand cherokee lerado

12 is a battery disconnect within the last 50 start cycles and 55 means the end of the diagnostic cycle. Basically the computer found nothing wrong. The 12 code may seem incorrect if you haven't disconnected the battery recently, but from my experience the 12 code shows up almost all the time regardless.

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