Dodge Repair Questions? Ask a Mechanic for Answers ASAP
Although PCM and TCM are integrated, the transmission part of the PCM has its own specific power and ground circuits so, first thing to do when this type of code sets is check the connectors for any issues with dirt, contamination or loose pins that may affect circuit continuity. If PCM connectors check out OK, check power supply at the relay located in the under-the-hood fuse/relay box - see attached graphic.
Please let me know if you need anything else.