Well, about one month ago we had the transmission rebuilt. It was working OK until one day I was backing out of our driveway. The check engine light came on, and has been on ever since.
The van will not shift. It's as if it's stuck in second gear (limp mode I suppose).
So, I took it to the shop that rebuilt the transmission and they told me it has a code p0700, but said that they don't have the equipment to diagnose the problem. I was told it's probably a computer problem, and was advised to take it to the dealer.
I took it to the dealer and they said that it has a code p0700 and code p0605. They tried to reflash it and clear the codes, but nothing would work. Because of this, they said that the PCM is faulty, and will have to be replaced.
After getting it back from the dealer (didn't have $900 after spending $1500 for transmission rebuild), I started reading this forum and decided to check everything that might be obviously wrong. The only thing I found that might have been suspicious is that when I checked inside the connectors for the PCM, one of them had oil in it. It looked like the transmission shop mechanic probably let it drag on the shop floor while they were working on it, and didn't clean it off before plugging it back in. Would this cause it to malfunction?
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