Question about Jeep Cherokee
Posted by Anonymous on
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Posted on Jan 02, 2017
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.
Posted on Dec 16, 2008
This is 100% certainly the "CKP" or crank possition sesor. I had the same problem on my SE 4.0L cherokee, i replaced the ignition pack - leads, dizzy cap, coil as the dizzy cap had major dirt and arc marks inside, king pin lead was loosing connection when warm also.
However this did not solve my problem, it helped, thats it.
I then used the in car diognostic system to see what that told me, sure enough - code 11, code 12 and code 55. meanings as follows.
11- no signal from crankshaft sensor
12 - main battery power disconnected
55- end of test
Once i replaced the crank shaft sensor and disconnected the battery for 30 mins to reset all fault codes it removed code 11.
Follw this link to learn how to use the on board diognostics - http://members.cox.net/wilsond/engine_codes.html
Hope this helps people out there!
Posted on Feb 23, 2009
General motors Dextron 3 is usually sufficient. If you want to know that for sure check the transmission's dip stick it should be stamped on it.
Posted on Sep 21, 2009
1998 Jeep Grand Cherokee Service Manual
see ezg_8w.pdf, PDF page 46 of 448 for the junction box
look for diagrams for fuse block, and relay center and power distribution center
fuse location is on front passenger side's side of dash (open door) OR underneath the dash, kick panel
the power distribution center is under hood.
Posted on Mar 04, 2010
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