Medium and Heavy Trucks
Have Truck Repair Questions? Ask an Expert
Hi my name is***** will be glad to help. what are you getting for fault codes?
Sounds like a loss of power or ground to the ECM. Check the inline fuses between the battery box and engine ECM for a blow fuse or corrosion and damage. Check your fuses and relays and for power in and out of the ignition switch for a possible faulty /worn ignition switch. Let me know
Also click on this link for a diagram to help with your power and ground pinouts at the ECM.
I tried it on my end and it works to 6400% enlargement... It is a PDF so there must be something going on with your Adobe program. Try updating your adobe and then trying. Click below as I took a snapshot. The + and - at the top of the screen are to enlarge and shrink the document. Let me know