'93 JGC DTC Code 12?????

My '93 JGC V-8 is reading out DTC Code 12. There is no such code in the service manual. I checked it four times, so I am sure it is reading 12. There is a Code 11, and I did have a problem starting the other day. Code 11 is "No crank reference signal at PCM." That could have been my problem, Anyone know about a Code 12? Could the PCM just be a little mixed up and reading out the wrong (but close) code? The Jeep was built in August 1992.

Dick Remove 33 from address

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Dick
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A '12' code is nothing, it usually means nothing more than the battery has been disconnected sometime in the not too distant history. My Jeep has maybe not had the '12' code 2-3 times in 7 years.

Jerry

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Jerry Bransford

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