ECM HAS BEEN REPLACED/FREIGHTLINER FOUNDSOMETHING ELSE

Hello to all. I'm wondering would anyone know anything about the ECM going bad. I have a Cummins ISX 15. To help you understand, let me start off by saying my truck was stolen back in September. It took a month for freightliner to replace things that were damaged or missing i.e. Wheels, tires, etc. After completing that, the I came to get my truck, once I got it started, I had engine lights come on that wasn't on before. In particular, the engine light that literally says CHECK. The body shop sent it over to service and they came back with the EGR cooler, ECM, and a samcab gone bad. My truck was to be ready on last Friday. I got a call from them stating that they found an ATD Harness that connect from the DPF to the fuel recirculate system burnt from touching the DPF. My question is, could that harness have anything to do with them saying the ECM was bad? And did I just get charged $8,000 for something that could've been done for $500? Thanks

 

OK. I know some of the codes were injector solenoid. I just found it odd that after they finished the work, they found this harness damaged. I was thinking maybe anything electrical could cause a fault for something with the ECM. Thanks for the reply.