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