Skip to content

Telegram : @Diezel365

Cummins ISX11.9 CM2250 (2010-12) Fault Code: 3224 PID: SPN: 3490 FMI: 3 Aftertreatment Purge Air Actuator Circuit- Voltage Above Normal, or Shorted to High Source

Circuit DescriptionThe aftertreatment purge air actuator is used to purge the aftertreatment fuel injector system of fuel after active regeneration of the aftertreatment diesel particulate filter.

Component LocationThe aftertreatment fuel injector is installed in the exhaust system in the turbocharger adapter pipe. The aftertreatment fuel pressure sensor and aftertreatment fuel shutoff valve are installed in the shutoff valve manifold. The aftertreatment purge air actuator is located above the shutoff valve manifold.

Conditions for Running the DiagnosticsThis diagnostic runs when the aftertreatment purge air actuator is commanded OFF.

Conditions for Setting the Fault CodesThe engine control module (ECM) detected a short circuit to battery in the aftertreatment purge air actuator circuit.

Action Taken When the Fault Code is ActiveThe ECM illuminates the amber CHECK ENGINE lamp and/or the malfunction indicator lamp (MIL) immediately when the diagnostic runs and fails.Active regeneration of the aftertreatment diesel particulate filter will be disabled until the next key cycle.Engine torque will be reduced if the engine is operated for an extended period of time with this fault active.Conditions for Clearing the Fault CodeThe fault code status displayed by INSITE? electronic service tool will change to INACTIVE immediately after the diagnostic runs and passes.The ECM will turn off the amber CHECK ENGINE lamp after the diagnostic runs and passes.For on-board diagnostic (OBD) engines, the ECM will turn off the MIL after three consecutive trips where the diagnostic runs and passes.The Reset All Faults command in INSITE? electronic service tool can be used to clear active and inactive faults, as well as extinguish the MIL for OBD applications

Shop TalkPossible causes of this fault include:

A short to battery in the aftertreatment purge air actuator circuitA damaged aftertreatment purge air actuator.

Possible Cause:1) Aftertreatment Purge air Actuator failure2) Engine Harness3) ECM calibration

Cummins ISX11.9 CM2250 (2010-12) Fault Code: 3223 PID: SPN: 3490 FMI: 4 Aftertreatment Purge Air Actuator Circuit- Voltage Below Normal, or Shorted to Low Source
Cummins ISX11.9 CM2250 (2010-12) Fault Code: 3213 PID: SPN: 1623 FMI: 19 Tachograph Output Shaft Speed- Received Network Data In Error
Cummins ISX11.9 CM2250 (2010-12) Fault Code: 3186 PID: SPN: 1623 FMI: 9 Tachograph Output Shaft Speed- Abnormal Update Rate
Cummins ISX11.9 CM2250 (2010-12) Fault Code: 3168 PID: SPN: 3936 FMI: 16 Aftertreatment Diesel Particulate Filter System- Data Valid But Above Normal Operating Range- Moderately Severe Level
Cummins ISX11.9 CM2250 (2010-12) Fault Code: 3167 PID: SID 382 SPN: 3556 FMI: 18 Aftertreatment Doser- Data valid But Below Normal Operating Range- Moderately Severe Level
Cummins ISX11.9 CM2250 (2010-12) Fault Code: 3165 PID: SPN: 4363 FMI: 0 Aftertreatment 1 SCR Outlet Temperature- Data Valid But Above Normal Operating range- Most Severe Level