WebJan 19, 2024 · The DEF pump is tied into the same wire. Besides the pump needing voltage and ground, there are three other vital inputs that are involved: Command signal. Speed sensor signal. Pressure sensor signal. The pressure sensor is inside the doser injector on this model. The command signal is created by the Cummins ECM. WebCodes 3258 and 3261 returned. installed new heater relay, load tested the supply circuit, tested for a short to ground, checked pin fit at module, inline connector and at the heaters themselves. code still comes back. i back probed the heater return pin at the after treatment module and i have battery voltage when the key is on. at this point I ...
Faulty Emission Reduction Fluid Tank Heater
Webgood evening my name is ***** ***** I will assist down by the def pump is where the line heaters connect. they have a tag around them to mark them. look at the connector. it is very common for the wires to break about 2 to 3 inches behind the connector either on the harness side or the heater side. usually this is a simple fix with a butt ... WebNov 27, 2024 · Need guidance diagnosing DEF heater line #3 open circuit Discussion in 'Kenworth Forum' started by tiddlytanker, Nov 21, 2024. Nov 21, 2024 #1. tiddlytanker … office for sale in difc
Need guidance diagnosing DEF heater line #3 open circuit
WebMay 7, 2024 · A quick diagnosis on this Cummins engine code 3239 in this Kenworth T680. WebFeb 4, 2024 · Upon startup "sometimes" DIC displays emissions issue going into limp mode in 146 miles or so and changes to 46,869 miles with a few seconds then disappears, this display is coupled with the engine light being on. Codes are P20BB and P20BF. Reductant heater B and A control circuit low. Engine light might go off hours later or at a startup or ... WebMar 6, 2024 · how to replace def heat line #2 on 2011 Freightliner Coronado DD15 engine#defline #freightlinerdd15 #owneroperator office for sale in long beach ca