Freightliner Def Line Heater Location
Webjan 4, 2022 · ohm test and load test the wiring from the ecm to the def dosing unit. I have ran through all of the cummins troubleshooting steps and i've come to a wall in where to go. If spn 4356/fmi 5 and spn 4354/fmi 5 are present, repair open between pin 9 of the. Webi have a code for heater line 1 open circuit. The heater electrical connectors are located near the def line couplings.
You most certainly have a rubbed or corroded wire or bad connection somewhere between. Webthis diagnostic is typically line heater 3 open circuit. Check for multiple codes. My voltage across the.
