B6.7 CM2450 B155B Fault Code: 3446 | SPN: 3222 | FMI: 5Aftertreatment Intake Gas Sensor Heater – Current Below Normal or Open Circuit

by DPFDELETE-TUNER | Feb 21, 2025 | Uncategorized

Overview   CODE REASON EFFECT Fault Code: 3446PID: SPN: 3222FMI: 5/5LAMP: AmberSRT:    An internal circuit error has been detected by the aftertreatment intake NOx sensor.     Possible reduced engine performance. Circuit Description The...

B6.7 CM2450 B155B Fault Code: 3423 | SPN: 4344 | FMI: 4Aftertreatment 1 Diesel Exhaust Fluid Line Heater 3 Circuit – Voltage Below Normal or Shorted to Low Source

by DPFDELETE-TUNER | Feb 21, 2025 | Uncategorized

Overview   CODE REASON EFFECT Fault Code: 3423PID: SPN: 4344FMI: 4/4LAMP: AmberSRT:    Low signal voltage detected at the diesel exhaust fluid line heater 3 circuit.     Possible reduced engine performance. Circuit Description The aftertreatment...

B6.7 CM2450 B155B Fault Code: 3422 | SPN: 4344 | FMI: 3Aftertreatment 1 Diesel Exhaust Fluid Line Heater 3 Circuit – Voltage Above Normal or Shorted to High Source

by DPFDELETE-TUNER | Feb 21, 2025 | Uncategorized

Overview   CODE REASON EFFECT Fault Code: 3422PID: SPN: 4344FMI: 3/3LAMP: AmberSRT:    High signal voltage detected at the diesel exhaust fluid line heater 3 circuit.     Possible reduced engine performance. Circuit Description The aftertreatment...

B6.7 CM2450 B155B Fault Code: 3396 | SPN: 3750 | FMI: 31Aftertreatment Diesel Particulate Filter 1 Conditions Not Met for Active Regeneration – Condition Exists

by DPFDELETE-TUNER | Feb 21, 2025 | Uncategorized

Overview   CODE REASON EFFECT Fault Code: 3396PID: SPN: 3750FMI: 11/31LAMP: AmberSRT:    The aftertreatment temperatures are not warm enough for aftertreatment injection.     May cause frequent aftertreatment regeneration. Circuit Description The...

B6.7 CM2450 B155B Fault Code: 3376 | SPN: 5319 | FMI: 31Aftertreatment 1 Diesel Particulate Filter Incomplete Regeneration – Condition Exists

by DPFDELETE-TUNER | Feb 21, 2025 | Uncategorized

Overview   CODE REASON EFFECT Fault Code: 3376PID: SPN: 5319FMI: 11/31LAMP: AmberSRT:    The system has detected that the aftertreatment diesel particulate filter differential pressure is too high following an active regeneration.     May cause...

B6.7 CM2450 B155B Fault Code: 3375 | SPN: 5397 | FMI: 31Aftertreatment 1 Diesel Particulate Filter Regeneration too Frequent – Condition Exists

by DPFDELETE-TUNER | Feb 21, 2025 | Uncategorized

Overview   CODE REASON EFFECT Fault Code: 3375PID: SPN: 5397FMI: 11/31LAMP: AmberSRT:    The system has detected the need for an active regeneration has occurred too soon following the last active regeneration.     None on performance. Circuit...