Mechanics

TROUBLE CODE 12 AND 54 CRANKS GOOD BUT NOT START

1993 Jeep Grand Cherokee • 189,000 miles

No spark to ignition coil checked codes and its giving me a 12 and 54 code
12-battery disconnected within 50 starts
54-no reading from cam shaft sensor while cranking.

i have replaced plugs, wires, crankshaft sensor, ignition coil, battery and still no start. My next purchase could be pcm but I need to know about trouble codes 12 and 54. And how to repair them.
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Renriquez67
July 7, 2013.




Code 12 smply means that the battery has been disconnected.

Code 54 is the camshaft sensor, which is inside of the distributor. You'll have to replace the entire distributor.

I would do this instead of replacing the pcm. Especially since the distributors on these are known to go bad fairly often.
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Freemba
Jul 7, 2013.
Thanks for the fast reply. I will change distributer hopefully thats it. M wife needs car to go to work.

Tiny
Renriquez67
Jul 7, 2013.

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