Hello all! I have been searching vigorously and read through basically every available document possibly pertaining to the solution to my problems. I also tried contacting a Mazda dealership which said they did not give out this info to anyone but techs. Turning up nothing, (or rather not enough) I turned to the experts (you fine folk)! I have an 2007 (auto) RX8 which lost compression around 55K and was swapped with another motor by previous owner. Unfortunately, they made the mistake of cutting the engine wiring harness after the front HO2S and before the rest of the trans wiring. The repair is going well except for 6 or so wires that are not unique colors and are proving difficult to trace to their respective pins. All of these pins I’m having trouble locating connect to the largest terminal in the PCM tray which actually connects to another harness traveling to the tcm under the steering wheel. If anyone can help me locate a pinout for the 06+ transmission controller or even a pinout of the terminal in the pcm tray I would be extremely grateful and I might finally be able to get my beast back on the road. I’ll include a picture of the pins which are an odd organization and would be rather easy to identify if located. If anyone has access to this information please help, also available through email

Thanks a bunch for the help! I annoyed a couple more dealers and finally got the diagrams I needed from a wonderfully helpful lady in the service dpt. I think I’ve found all the diagrams I needed I’ll be reposting them Incase anyone else needs them in the future. Hope that’s not illegal.