I had written on here before about my van dying and not knowing why. I eventually went through every troubleshooting step in the Haynes manual, and had a mobile mechanice come out and check out the van. Was told by the machanis that my PCM was bad, thus the search for a PCM began. Finally had to send my PCM to a company to be 'rebuilt'. When I got it back was told the ignition circuit was rebuilt. Plugged in the PCM and my van started! Yeah! Within 24 hours check engine light came and I hooked up an OBD tool. Tool came back with two codes- first one (P0600) said there is an internal communication problem with the PCM, and the second (P1698) said that there is no communication from the TCM. My question is this- where exactly is the TCM? Is it in or a part of the transmission, or is it a component in the PCM? I just had the transmission rebuilt in June of this year if that helps any. TIA!
- posted
18 years ago