This diagnostic function monitors the systems ability to maintain and regulate the DPF temperatures within acceptable limits based on current conditions like normal operation or during regenerations. Conditions for diagnostic trouble code (DTC):1) Automatic Regeneration, Only2) During regeneration the temperature after the catalyst is too high for the existing conditions, above 800??C, (1472??F) Observable symptoms1) Automatic regeneration not possible2) Regeneration aborted Probable cause1) Aftertreatment exhaust gas temperature (EGT) sensors installed in the incorrect location on the aftertreatment diesel particulate filter (DPF)2) Aftertreatment Hydrocarbon Doser, over-fueling3) Excessive smoke from the engine (High soot level)4) Oil contamination, Excessive wear or damage to...

This diagnostic function monitors the systems ability to maintain and regulate the DPF temperatures within acceptable limits based on current conditions like normal operation or during regenerations. Conditions for diagnostic trouble code (DTC):1) Automatic Regeneration, Only2) During regeneration the temperature after the catalyst is too low for the existing conditions, below 450??C, (842??F) Observable symptoms1) Regeneration aborted2) Regeneration not possible Probable cause1) Aftertreatment exhaust gas temperature (EGT) sensors installed in the incorrect location on the aftertreatment diesel particulate filter (DPF)2) Aftertreatment Hydrocarbon Doser, under-fueling3) Obstructed/dirty aftertreatment hydrocarbon doser4) Air purge system5) Engine Turbo Compressor Bypass Valve6) Catalyst failure, Possible excessive...

The aftertreatment control module (ACM) supplies a pulsed ground signal to activate the ignition coil. The ignition coil is connected to the ignition electrodes by two ignition wires. When activated it supplies 40,000 to 45,000 volts to the ignition electrodes creating an arc that ignites the atomized fuel and air mixture in the aftertreatment diesel particulate filter (DPF) combustion chamber of the aftertreatment DPF. Conditions for diagnostic trouble code (DTC):1) Short circuit to battery voltage on Pin: 21 (Ground wire) Observable symptoms1) Regeneration not possible Probable cause1) Wiring harness between Aftertreatment ignition coil and Aftertreatment Control Module (ACM)2) Aftertreatment ignition...

The aftertreatment control module (ACM) supplies a pulsed ground signal to activate the ignition coil. The ignition coil is connected to the ignition electrodes by two ignition wires. When activated it supplies 40,000 to 45,000 volts to the ignition electrodes creating an arc that ignites the atomized fuel and air mixture in the aftertreatment diesel particulate filter (DPF) combustion chamber of the aftertreatment DPF. Conditions for diagnostic trouble code (DTC):1) Pin: 21 (Ground wire), Short circuit to ground Observable symptoms1) Regeneration not possible Probable cause1) Wiring harness between Aftertreatment ignition coil and Aftertreatment Control Module (ACM)2) Aftertreatment ignition coil3) Aftertreatment...

The aftertreatment control module (ACM) supplies a pulsed ground signal to activate the ignition coil. The ignition coil is connected to the ignition electrodes by two ignition wires. When activated it supplies 40,000 to 45,000 volts to the ignition electrodes creating an arc that ignites the atomized fuel and air mixture in the aftertreatment diesel particulate filter (DPF) combustion chamber of the aftertreatment DPF. Conditions for diagnostic trouble code (DTC):1) Pin: 21 (Ground wire), Current below normal or open circuit Observable symptoms1) Regeneration not possible Probable cause1) Wiring harness between Aftertreatment ignition coil and Aftertreatment Control Module (ACM)2) Aftertreatment ignition...