marshall99910
Junior Member
I have a 2010 1500 with a 4.7l, I just replaced the engine and now I have no gear indicator (did come on for a minute a couple times but all gears were selected) no crank, no start (assuming that’s because of the transmission).
It’s throwing code U0100 lost communication with ECM/PCM and code U1197 security seed response not received and the key is valid.
My scan tool won’t do a regular scan but will scan the tipm because that is still communicating and it says that it’s a CAN C BUS issue. I checked all the tipm connectors and pins, all the ECM/PCM connectors and pins as well as the grounds. I just don’t know where to go from here.
It’s throwing code U0100 lost communication with ECM/PCM and code U1197 security seed response not received and the key is valid.
My scan tool won’t do a regular scan but will scan the tipm because that is still communicating and it says that it’s a CAN C BUS issue. I checked all the tipm connectors and pins, all the ECM/PCM connectors and pins as well as the grounds. I just don’t know where to go from here.
