Question about 1999 Cadillac DeVille
Posted by Anonymous on
The powertrain control module (PCM) doesn't like the information it is getting from the ignition control module (ICM), and the PCM controls shifting, traction control, etc.If these are the only codes you are getting and the car moves, then you could assume the sensors connected to the ICM are working properly. That leaves why the PCM thinks there is a problem. I would certainly replace the ICM first, and then if the problem still exists, the PCM.
Posted on Mar 02, 2015
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Posted on Jan 02, 2017
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