Webfeb 26, 2020 · i have a 2012 maxxforce with spn 609 fmi 19. Have all power and grounds, all ignition power, j1939 all checks out. Have any of you guys had a bad dcu on these. Sa 3 spn 609 fmi 9, 12, 19. The endurant hd transmission is equipped with a transmission control module (tcm). The tcm communicates with other vehicle. Webmay 20, 2015 · description. This document will guide the user through properly and quickly deciding the repair action required for the aftertreatment harness on scr aftertreatment. Check to ensure the mcm is correct for the engine. [a] if mcm is correct for the engine, go to step 2. [b] if mcm is not correct for the engine, contact detroit diesel customer. Communication error on j1939 link. I had a code before putting a new acm on the truck. Troubleshooting tree worked out to be a. Webjun 23, 2021 · 0. Recently this truck, a 2018 freightliner m2 106 with the cummins b6. 7 and eaton procession amt had this error code of spn609 fmi19. This is a new to me truck,. Dcu not detected on j1939 troubleshooting: The doser control unit (dcu) controls the downstream injection (dsi) system during a. There are a few things that you need to understand before troubleshooting the 1939 data link. First, the drivetrain j1939 data link, j1939 body builder data link, and. Webif only spn 609/fmi 13 fault is present, reprogram cpc with the proper configuration for the vehicle. The tables below shows a set of commonly miss configured.