Hello this is my first post, I have a 04' hemi SLT, 05' HEMI Laramie, and 06' HEMI SLT. My 06' went into limp mode, reason unknown. Obd states TCM Voltage low, and trans psi high. I purchased a new pcu from flagship 1 and it came with a fault log as long as my arm. I sent it back for them to troubleshoot in the meantime got another PCU from Pick-A-Part that worked in my truck for the time being, note ( I have four PCUS at this time) after getting the one I purchased from flagship back it still had faults logged in it. Sent it to AutoZone and they sent it out to be flashed. Still has trans control module issue. Replace the transmission only now when you put it in any gear it doesn't do anything. Change the fluids and filters still nothing and ran fine for about 6 hours after putting the transmission in with shifting all gears then all of a sudden nothing truck stalled and went to go start it back up put it in gear and nothing no sound coming from the transmission no whining sound nothing. I pulled the transmission three times already replaced the torque converter and still nothing happens when you put it in gear does anyone have any ideas

 

I'd be lookin' at where the trans controls get power from. Likely in the TIPM somewhere.....