PCM connector Archives - Transmission Digest

There are many ways one could be “zapped” by electricity, and one way that it happened to Jesse Zacarias from Elec-Trans Diagnostics in Gilroy, Calif., goes like this. A 2003 Dodge Ram truck equipped with a 5.9-liter Cummins diesel and a 48RE transmission came into his shop with a complaint of taking off in 3rd gear. The park and neutral gear-select indicator lights were the only ones that would illuminate. With any scan tool, Jesse could retrieve a code P0700 (transmission fault present) from the engine-control module but could not communicate with the powertrain-control module for the transmission.