5030. However, if you were to purchase an aftermarket ECM, you also will need to have it flashed to match. The GM 4L60E/65E/70E-4L80E/85E Diagnostic Code Book is designed to provide the technician with a step by step diagnostic approach to each and every transmission code available from 1991 to the 2007 model year. Other Names: ECM. It's my understanding that the power train control module (TCM)/engine control module (ECM) are one in the same, and operate the engine and drive train. 5-1999 Dodge Ram 2500 / 3500 Cummins Turbo Diesel ECM Part Number 3942336 Re-manufactured Engine Control Module Factory Tested. The MCAL Prom (Chip) IS NOT INCLUDED. 95 2007 2008 2009 Silverado Engine Computer 12597125 Programmed To Your VIN PCM $ 115. .