Thread: PCM troubles
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Old 10-02-2005, 04:26 PM
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Re: PCM troubles

I'm sorry for the confusion, in the other thread I was just answering your questions about the PCM, and explaining why your transmission was acting like that, I didn't mean that the PCM was the problem.

As GMMerlin said, those codes indicate a loss of power to the tranny and it typically is the ignition switch that causes the loss of power.

With the switch on, check for voltage at fuse #11 (cluster). If no voltage or low voltage is present, then I would suspect the ignition switch (or faulty wiring for a remote starter if you have one)

If you have voltage there, try turning the switch on and off a few times to make sure that it remains constant.

If the voltage is present and stays constant, then inspect the wiring going to the transmission.
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