B6.7 CM2450 B155B Fault Code: 5383 | SPN: 3720 | FMI: 15Aftertreatment 1 Diesel Particulate Filter Ash Load Percent – Data Valid But Above Normal Operating Range – Least Severe Level

by DPFDELETE-TUNER | Mar 4, 2025 | Uncategorized

Overview   CODE REASON EFFECT Fault Code: 5383PID: SPN: 3720FMI: 0/15LAMP: MaintenanceSRT:    The ash load of the aftertreatment diesel particulate filter has exceeded the recommended limits.     None on performance. Circuit Description The engine...

B6.7 CM2450 B155B Fault Code: 4769 | SPN: 1761 | FMI: 10Aftertreatment 1 Diesel Exhaust Fluid Tank Level Sensor – Abnormal Rate of Change

by DPFDELETE-TUNER | Mar 4, 2025 | Uncategorized

Overview   CODE REASON EFFECT Fault Code: 4769PID: SPN: 1761FMI: 10/10LAMP: AmberSRT:    A valid diesel exhaust fluid tank level reading has NOT been received.     Possible reduced engine performance. Circuit Description The aftertreatment diesel...

B6.7 CM2450 B155B Fault Code: 4751 | SPN: 3227 | FMI: 21Aftertreatment 1 Outlet Oxygen – Data Not Rational – Drifted Low

by DPFDELETE-TUNER | Mar 4, 2025 | Uncategorized

Overview   CODE REASON EFFECT Fault Code: 4751PID: SPN: 3227FMI: 2/21LAMP: AmberSRT:    An in-range low failure has been detected.     None on performance. Circuit Description The aftertreatment outlet NOx (nitrogen oxides) sensor is a smart device...

B6.7 CM2450 B155B Fault Code: 4749 | SPN: 3227 | FMI: 20Aftertreatment 1 Outlet Oxygen – Data Not Rational – Drifted High

by DPFDELETE-TUNER | Mar 4, 2025 | Uncategorized

Overview   CODE REASON EFFECT Fault Code: 4749PID: SPN: 3227FMI: 2/20LAMP: AmberSRT:    An in-range high failure has been detected.     None on performance. Circuit Description The aftertreatment outlet NOx (nitrogen oxides) sensor is a smart...

B6.7 CM2450 B155B Fault Code: 4748 | SPN: 3217 | FMI: 21Aftertreatment 1 Intake Oxygen Sensor – Data Not Rational – Drifted Low

by DPFDELETE-TUNER | Mar 4, 2025 | Uncategorized

Overview   CODE REASON EFFECT Fault Code: 4748PID: SPN: 3217FMI: 2/21LAMP: AmberSRT:    An in-range low failure has been detected.     None on performance. Circuit Description The aftertreatment intake NOx (nitrogen oxides) sensor is a smart device...

B6.7 CM2450 B155B Fault Code: 4739 | SPN: 1761 | FMI: 11Aftertreatment 1 Diesel Exhaust Fluid Tank Level Sensor – Root Cause Not Known

by DPFDELETE-TUNER | Mar 4, 2025 | Uncategorized

Overview   CODE REASON EFFECT Fault Code: 4739PID: SPN: 1761FMI: 11/11LAMP: AmberSRT:    An unknown error has been detected with the aftertreatment diesel exhaust fluid tank level sensor.     Possible reduced engine performance. Circuit Description...