can-c bus communication issue. please read.
i have changed the PCM and when i programmed the ECU it dissapears from the can-c bus!?
i´ve checked power and earth to pcm an both can-c plus and minus they are OK i have put 12v 55w loads on them as well, the cables are ok. i have also replaced the TIPM but i cant get either the old or the new one to communicate with the PCM.
It could be a scantool problem, my mechanic only have the starscan scantool and i´m beginning to wonder if there is a problem with the tool/cable? but why we have contact with the PCM before we flashed it?
we are working on a ram 3500 cummins 5.9 HO
me and my mechanic have done everything we can, please give me opinions and tips or such wich can help me get the truck going.
we dont know what happened to the truck but after it had went on a boat trip it didnt start and the 30A PCM fuse was blown also.
one more thing, the truck will start with the old TIPM (FCM, CENTRAL GATEWAY) but i cant drive it. but it wont start with the new TIPM because i cant program it, it doesent know the VIN and none of the configuration.
restore vehicle configuration will not work because the lack of communication between the scantool and the PCM and TIPM -->PCM
thanks for any help!
Last edited by fredguy; 11-30-2010 at 04:31 PM.