ISX12/ISX11.9 CM2250 Fault Code: 3237 | SPN: 4340 | FMI: 3Aftertreatment 1 Diesel Exhaust Fluid Line Heater 1 Circuit – Voltage Above Normal or Shorted to High Source

por ECMDIESELTUNING | Feb 21, 2025 | Uncategorized

Overview   CODE REASON EFFECT Fault Code: 3237PID: SPN: 4340FMI: 3/3LAMP: AmberSRT:    High signal voltage detected at the diesel exhaust fluid line heater 1 circuit.     Possible reduced engine performance. Circuit Description The aftertreatment...

ISX12/ISX11.9 CM2250 Fault Code: 3232 | SPN: 3216 | FMI: 9Aftertreatment 1 Intake NOx Sensor – Abnormal Update Rate

por ECMDIESELTUNING | Feb 21, 2025 | Uncategorized

Overview   CODE REASON EFFECT Fault Code: 3232PID: SPN: 3216FMI: 9/9LAMP: AmberSRT:    No communication or an invalid data transfer rate has been detected on the J1939 data link between the ECM and the aftertreatment intake NOx sensor.     Possible...

ISX12/ISX11.9 CM2250 Fault Code: 3231 | SPN: 4360 | FMI: 16Aftertreatment 1 SCR Intake Temperature – Data Valid But Above Normal Operating Range – Moderately Severe Level

por ECMDIESELTUNING | Feb 21, 2025 | Uncategorized

Overview   CODE REASON EFFECT Fault Code: 3231PID: SPN: 4360FMI: 0/16LAMP: RedSRT:    The SCR intake temperature sensor reading has exceeded the maximum temperature limit.     Possible reduced engine performance. Circuit Description The selective...

ISX12/ISX11.9 CM2250 Fault Code: 3229 | SPN: 4360 | FMI: 0Aftertreatment 1 SCR Intake Temperature – Data Valid But Above Normal Operating Range – Most Severe Level

por ECMDIESELTUNING | Feb 21, 2025 | Uncategorized

Overview   CODE REASON EFFECT Fault Code: 3229PID: SPN: 4360FMI: 0/0LAMP: RedSRT:    The selective catalytic reduction (SCR) intake temperature sensor reading has exceeded the maximum temperature limit.     Possible reduced engine performance....

ISX12/ISX11.9 CM2250 Fault Code: 3228 | SPN: 3216 | FMI: 2Aftertreatment 1 Intake NOx Sensor – Data Erratic, Intermittent, or Incorrect

por ECMDIESELTUNING | Feb 21, 2025 | Uncategorized

Overview   CODE REASON EFFECT Fault Code: 3228PID: SPN: 3216FMI: 2/2LAMP: AmberSRT:    An incorrect NOx sensor reading has been detected by the aftertreatment intake NOx sensor.     Possible reduced engine performance. Circuit Description The...

ISX12/ISX11.9 CM2250 Fault Code: 3225 | SPN: 3490 | FMI: 7Aftertreatment Purge Air Actuator – Mechanical System Not Responding or Out of Adjustment

por ECMDIESELTUNING | Feb 21, 2025 | Uncategorized

Overview   CODE REASON EFFECT Fault Code: 3225PID: SPN: 3490FMI: 7/7LAMP: AmberSRT:    Aftertreatment Purge Air Actuator – Mechanical System Not Responding or Out of Adjustment.A stuck closed aftertreatment purge air actuator has been detected  ...