Medium and Heavy Trucks
Have Truck Repair Questions? Ask an Expert
Hi my name is***** the module is new and programmed correctly then take a very close look at the wiring harness and connector pins for corrosion or damage and check your powers and grounds for the ECU.If that checks okay you likely have an issue with the new ecu. Try reprogramming and updating the software to see if it will reset and the problem resolves. Let meknow
Click on the link i uploaded for you below. This is what I have for diagrams.
Does it look like this on your truck? Try this one.
Hi, The first link I posed. Go to PDF pages 170- 175. the brake section is in there. The fuse and ignition circuit diagrams are in there as well. I am not an employee of the site and unfortunately have been busy with other work but I will do my best to follow up late at night when I am available to log in. Let me know