Circuit DescriptionThe ECM has internal diagnostics that continuously run and check the internal memory.
Component LocationThe Engine Control Module (ECM) is mounted on the intake manifold side of the engine.
Conditions for Running the DiagnosticsThis diagnostic runs continuously when the keyswitch is in the ON position or when the engine is running.
Conditions for Setting the Fault CodesThe Engine Control Module (ECM) detected a read or write error internal to the ECM.
Action Taken When the Fault Code is ActiveThe ECM illuminates the red STOP ENGINE lamp and/or the Malfunction Indicator Lamp (MIL) immediately when the diagnostic runs and fails.
The engine may not start.Conditions for Clearing the Fault CodeTo validate the repair, perform a key cycle, start the engine and let it idle for 1 minute.The 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 red STOP ENGINE lamp immediately after the diagnostic runs and passes.For On-Board Diagnostics (OBD) engines, the ECM will extinguish the Malfunction Indicator Lamp (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 TalkThis fault code can only be caused by an internal ECM problem. Repairs are not possible for the ECM.
Cummins X15 CM2350 X116B Performance Series (2018 & Newer) Fault Code: 8633 PID: SPN: 12868 FMI: 13/13 TSC1 Control Purpose P7 Inhibit Command – Out of Calibration
Cummins X15 CM2350 X116B Performance Series (2018 & Newer) Fault Code: 7397 PID: SPN: 102 FMI: 0/0 Engine Intake Manifold Pressure – Data Valid But Above Normal Operating Range – Most Severe Level
Cummins X15 CM2350 X116B Performance Series (2018 & Newer) Fault Code: 7234 PID: SPN: 188 FMI: 1/17 Engine Speed At Idle – Data Valid But Below Normal Operating Range – Least Severe Level
Cummins X15 CM2350 X116B Performance Series (2018 & Newer) Fault Code: 7233 PID: SPN: 102 FMI: 1/1 Engine Intake Manifold Pressure – Data Valid But Below Normal Operating Range – Most Severe Level
Cummins X15 CM2350 X116B Performance Series (2018 & Newer) Fault Code: 7232 PID: SPN: 3058 FMI: 0/0 Engine Exhaust Gas Recirculation (EGR) System – Data Valid But Above Normal Operating Range – Most Severe Level
Circuit DescriptionThe engine control module (ECM) receives constant voltage from the batteries through the unswitched battery wires that are connected directly to the positive (+) battery post. The ECM receives switched battery input through the keyswitch wire when the keyswitch is turned ON.
Component LocationThe ECM is connected to the battery by the OEM harness. This direct link provides a constant power supply for the ECM. The location of the battery will vary with the original equipment manufacturer (OEM). Refer to the OEM service manual.
Conditions for Running the DiagnosticsThis diagnostic runs continuously when the keyswitch is in the ON position or when the engine is running.
Conditions for Setting the Fault CodesThe Engine Control Module (ECM) detected the primary ECM power supply dropped below a calibratible value while the keyswitch was in the ON position.The power down sequence was interrupted by a premature ECM shutdown.Action Taken When the Fault Code is ActiveThe ECM logs the fault code immediately when the diagnostic runs and fails.Power-down data like trip information, maintenance monitor, and fault information will not get saved to permanent memory when the keyswitch is turned OFF.Conditions for Clearing the Fault CodeTo validate the repair, start the engine, let it idle for 1 minute, and then shutdown the engine.Turn the key switch OFF and allow the ECM to completely powerdown.The fault code status displayed by INSITE™ electronic service tool will change to INACTIVE immediately after 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 code are:
Battery voltage below 6.2 VDC during cranking.High resistance in the ECM supply or return circuit.Use of a battery disconnect switch or any device that disconnects battery voltage to the ECM to turn the engine off or before the ECM is completely powered down.Reference the appropriate OEM wiring diagram when troubleshooting circuits that utilize wiring supplied by the OEM.
Possible Cause:1) Loose Connections/ Terminals2) Battery Failure3) Fuses4) OEM power harness failure5) ECM power harness failure6) OEM harness7) ECM calibration
Cummins X15 CM2450 X124B (2018 & Newer) Fault Code: 784 PID: SID 145 SPN: 1590 FMI: 2 Adaptive Cruise Control Mode- Data Erratic, Intermittent, or Incorrect
Circuit DescriptionThe ECM uses diagnostic software to verify injector operation. During selected conditions, each injector is fired. The fueling quantity and timing are then compared to a specified threshold.
Component LocationThe engine harness connects the ECM to the pass-through connector(s) that are located in the rocker housing. Internal injector harnesses are located under the valve cover and connect the injectors to the engine harness at the pass-through connector(s).
Conditions for Running the DiagnosticsThis diagnostic runs periodically during engine operation.
Conditions for Setting the Fault CodesThe Engine Control Module (ECM) detected a fueling timing or quantity error for the specified injector.
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.Conditions for Clearing the Fault CodeIt is necessary to use the “Reset All Faults” command in INSITE™ electronic service tool to clear this fault and extinguish the amber CHECK ENGINE lamp and/or Malfunction Indicator Lamp (MIL).
Shop TalkThis fault code is intended to identify fueling quantity and timing issues.
Possible Cause:1) Cylinder number 1 fuel Injector failure2) ECM calibration
Cummins X15 CM2450 X124B (2018 & Newer) Fault Code: 1117 PID: SID 251 SPN: 3597 FMI: 2 Power Supply Lost With Ignition on- Data Erratic, Intermittent, or Incorrect
Cummins X15 CM2450 X124B (2018 & Newer) Fault Code: 784 PID: SID 145 SPN: 1590 FMI: 2 Adaptive Cruise Control Mode- Data Erratic, Intermittent, or Incorrect
Circuit DescriptionThe ECM uses diagnostic software to verify injector operation. During selected conditions, each injector is fired. The fueling quantity and timing are then compared to a specified threshold.
Component LocationThe engine harness connects the ECM to the pass-through connector(s) that are located in the rocker housing. Internal injector harnesses are located under the valve cover and connect the injectors to the engine harness at the pass-through connector(s).
Conditions for Running the DiagnosticsThis diagnostic runs periodically during engine operation.
Conditions for Setting the Fault CodesThe Engine Control Module (ECM) detected a fueling timing or quantity error for the specified injector.
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.Conditions for Clearing the Fault CodeIt is necessary to use the “Reset All Faults” command in INSITE™ electronic service tool to clear this fault and extinguish the amber CHECK ENGINE lamp and/or Malfunction Indicator Lamp (MIL).
Shop TalkThis fault code is intended to identify fueling quantity and timing issues.
Possible Cause:1) Cylinder number 2 fuel injector failure2) ECM calibration
Cummins X15 CM2450 X124B (2018 & Newer) Fault Code: 1139 PID: SID 001 SPN: 651 FMI: 7 Injector Solenoid Driver Cylinder 1- Mechanical System Not Responding or Out of Adjustment
Cummins X15 CM2450 X124B (2018 & Newer) Fault Code: 1117 PID: SID 251 SPN: 3597 FMI: 2 Power Supply Lost With Ignition on- Data Erratic, Intermittent, or Incorrect
Cummins X15 CM2450 X124B (2018 & Newer) Fault Code: 784 PID: SID 145 SPN: 1590 FMI: 2 Adaptive Cruise Control Mode- Data Erratic, Intermittent, or Incorrect
Circuit DescriptionThe ECM uses diagnostic software to verify injector operation. During selected conditions, each injector is fired. The fueling quantity and timing are then compared to a specified threshold.
Component LocationThe engine harness connects the ECM to the pass-through connector(s) that are located in the rocker housing. Internal injector harnesses are located under the valve cover and connect the injectors to the engine harness at the pass-through connector(s).
Conditions for Running the DiagnosticsThis diagnostic runs periodically during engine operation.
Conditions for Setting the Fault CodesThe Engine Control Module (ECM) detected a fueling timing or quantity error for the specified injector.
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.Conditions for Clearing the Fault CodeIt is necessary to use the “Reset All Faults” command in INSITE™ electronic service tool to clear this fault and extinguish the amber CHECK ENGINE lamp and/or Malfunction Indicator Lamp (MIL).
Shop TalkThis fault code is intended to identify fueling quantity and timing issues.
Possible Cause:1) Cylinder number 3 Fuel injector failure2) ECM calibration
Cummins X15 CM2450 X124B (2018 & Newer) Fault Code: 1141 PID: 1141 SPN: 652 FMI: 7 Injector Solenoid Driver Cylinder 2- Mechanical System Not Responding or Out of Adjustment
Cummins X15 CM2450 X124B (2018 & Newer) Fault Code: 1139 PID: SID 001 SPN: 651 FMI: 7 Injector Solenoid Driver Cylinder 1- Mechanical System Not Responding or Out of Adjustment
Cummins X15 CM2450 X124B (2018 & Newer) Fault Code: 1117 PID: SID 251 SPN: 3597 FMI: 2 Power Supply Lost With Ignition on- Data Erratic, Intermittent, or Incorrect
Cummins X15 CM2450 X124B (2018 & Newer) Fault Code: 784 PID: SID 145 SPN: 1590 FMI: 2 Adaptive Cruise Control Mode- Data Erratic, Intermittent, or Incorrect
Circuit DescriptionThe ECM uses diagnostic software to verify injector operation. During selected conditions, each injector is fired. The fueling quantity and timing are then compared to a specified threshold.
Component LocationThe engine harness connects the ECM to the pass-through connector(s) that are located in the rocker housing. Internal injector harnesses are located under the valve cover and connect the injectors to the engine harness at the pass-through connector(s).
Conditions for Running the DiagnosticsThis diagnostic runs periodically during engine operation.
Conditions for Setting the Fault CodesThe Engine Control Module (ECM) detected a fueling timing or quantity error for the specified injector.
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.Conditions for Clearing the Fault CodeIt is necessary to use the “Reset All Faults” command in INSITE™ electronic service tool to clear this fault and extinguish the amber CHECK ENGINE lamp and/or Malfunction Indicator Lamp (MIL).
Shop TalkThis fault code is intended to identify fueling quantity and timing issues.
Possible Cause:1) Cylinder number 4 Fuel Injector failure2) ECM calibration
Cummins X15 CM2450 X124B (2018 & Newer) Fault Code: 1143 PID: SID 004 SPN: 654 FMI: 7 Injector Solenoid Driver Cylinder 4- Mechanical System Not Responding or Out of Adjustment
Cummins X15 CM2450 X124B (2018 & Newer) Fault Code: 1142 PID: SID 003 SPN: 653 FMI: 7 Injector Solenoid Driver Cylinder 3- Mechanical System Not Responding or Out of Adjustment
Cummins X15 CM2450 X124B (2018 & Newer) Fault Code: 1141 PID: 1141 SPN: 652 FMI: 7 Injector Solenoid Driver Cylinder 2- Mechanical System Not Responding or Out of Adjustment
Cummins X15 CM2450 X124B (2018 & Newer) Fault Code: 1139 PID: SID 001 SPN: 651 FMI: 7 Injector Solenoid Driver Cylinder 1- Mechanical System Not Responding or Out of Adjustment
Cummins X15 CM2450 X124B (2018 & Newer) Fault Code: 1117 PID: SID 251 SPN: 3597 FMI: 2 Power Supply Lost With Ignition on- Data Erratic, Intermittent, or Incorrect
Cummins X15 CM2450 X124B (2018 & Newer) Fault Code: 784 PID: SID 145 SPN: 1590 FMI: 2 Adaptive Cruise Control Mode- Data Erratic, Intermittent, or Incorrect
Circuit DescriptionThe ECM uses diagnostic software to verify injector operation. During selected conditions, each injector is fired. The fueling quantity and timing are then compared to a specified threshold.
Component LocationThe engine harness connects the ECM to the pass-through connector(s) that are located in the rocker housing. Internal injector harnesses are located under the valve cover and connect the injectors to the engine harness at the pass-through connector(s).
Conditions for Running the DiagnosticsThis diagnostic runs periodically during engine operation.
Conditions for Setting the Fault CodesThe Engine Control Module (ECM) detected a fueling timing or quantity error for the specified injector.
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.Conditions for Clearing the Fault CodeIt is necessary to use the “Reset All Faults” command in INSITE™ electronic service tool to clear this fault and extinguish the amber CHECK ENGINE lamp and/or Malfunction Indicator Lamp (MIL).
Shop TalkThis fault code is intended to identify fueling quantity and timing issues.
Possible Cause:1) Cylinder number 4 Fuel Injector failure2) ECM calibration
Cummins X15 CM2450 X124B (2018 & Newer) Fault Code: 1142 PID: SID 003 SPN: 653 FMI: 7 Injector Solenoid Driver Cylinder 3- Mechanical System Not Responding or Out of Adjustment
Cummins X15 CM2450 X124B (2018 & Newer) Fault Code: 1141 PID: 1141 SPN: 652 FMI: 7 Injector Solenoid Driver Cylinder 2- Mechanical System Not Responding or Out of Adjustment
Cummins X15 CM2450 X124B (2018 & Newer) Fault Code: 1139 PID: SID 001 SPN: 651 FMI: 7 Injector Solenoid Driver Cylinder 1- Mechanical System Not Responding or Out of Adjustment
Cummins X15 CM2450 X124B (2018 & Newer) Fault Code: 1117 PID: SID 251 SPN: 3597 FMI: 2 Power Supply Lost With Ignition on- Data Erratic, Intermittent, or Incorrect
Cummins X15 CM2450 X124B (2018 & Newer) Fault Code: 784 PID: SID 145 SPN: 1590 FMI: 2 Adaptive Cruise Control Mode- Data Erratic, Intermittent, or Incorrect
Circuit DescriptionThe ECM uses diagnostic software to verify injector operation. During selected conditions, each injector is fired. The fueling quantity and timing are then compared to a specified threshold.
Component LocationThe engine harness connects the ECM to the pass-through connector(s) that are located in the rocker housing. Internal injector harnesses are located under the valve cover and connect the injectors to the engine harness at the pass-through connector(s).
Conditions for Running the DiagnosticsThis diagnostic runs periodically during engine operation.
Conditions for Setting the Fault CodesThe Engine Control Module (ECM) detected a fueling timing or quantity error for the specified injector.
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.Conditions for Clearing the Fault CodeIt is necessary to use the “Reset All Faults” command in INSITE™ electronic service tool to clear this fault and extinguish the amber CHECK ENGINE lamp and/or Malfunction Indicator Lamp (MIL).
Shop TalkThis fault code is intended to identify fueling quantity and timing issues.
Possible Cause:1) Cylinder number 5 fuel injector failure2) ECM calibration
Cummins X15 CM2450 X124B (2018 & Newer) Fault Code: 1143 PID: SID 004 SPN: 654 FMI: 7 Injector Solenoid Driver Cylinder 4- Mechanical System Not Responding or Out of Adjustment
Cummins X15 CM2450 X124B (2018 & Newer) Fault Code: 1143 PID: SID 004 SPN: 654 FMI: 7 Injector Solenoid Driver Cylinder 4- Mechanical System Not Responding or Out of Adjustment
Cummins X15 CM2450 X124B (2018 & Newer) Fault Code: 1142 PID: SID 003 SPN: 653 FMI: 7 Injector Solenoid Driver Cylinder 3- Mechanical System Not Responding or Out of Adjustment
Cummins X15 CM2450 X124B (2018 & Newer) Fault Code: 1141 PID: 1141 SPN: 652 FMI: 7 Injector Solenoid Driver Cylinder 2- Mechanical System Not Responding or Out of Adjustment
Cummins X15 CM2450 X124B (2018 & Newer) Fault Code: 1139 PID: SID 001 SPN: 651 FMI: 7 Injector Solenoid Driver Cylinder 1- Mechanical System Not Responding or Out of Adjustment
Cummins X15 CM2450 X124B (2018 & Newer) Fault Code: 1117 PID: SID 251 SPN: 3597 FMI: 2 Power Supply Lost With Ignition on- Data Erratic, Intermittent, or Incorrect
Circuit DescriptionThe ECM uses diagnostic software to verify injector operation. During selected conditions, each injector is fired. The fueling quantity and timing are then compared to a specified threshold.
Component LocationThe engine harness connects the ECM to the pass-through connector(s) that are located in the rocker housing. Internal injector harnesses are located under the valve cover and connect the injectors to the engine harness at the pass-through connector(s).
Conditions for Running the DiagnosticsThis diagnostic runs periodically during engine operation.
Conditions for Setting the Fault CodesThe Engine Control Module (ECM) detected a fueling timing or quantity error for the specified injector.
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.Conditions for Clearing the Fault CodeIt is necessary to use the “Reset All Faults” command in INSITE™ electronic service tool to clear this fault and extinguish the amber CHECK ENGINE lamp and/or Malfunction Indicator Lamp (MIL).
Shop TalkThis fault code is intended to identify fueling quantity and timing issues.
Possible Cause:1) Cylinder number 6 fuel injector failure2) ECM calibration
Cummins X15 CM2450 X124B (2018 & Newer) Fault Code: 1144 PID: SID 005 SPN: 655 FMI: 7 Injector Solenoid Driver Cylinder 5- Mechanical System Not Responding or Out of Adjustment
Cummins X15 CM2450 X124B (2018 & Newer) Fault Code: 1143 PID: SID 004 SPN: 654 FMI: 7 Injector Solenoid Driver Cylinder 4- Mechanical System Not Responding or Out of Adjustment
Cummins X15 CM2450 X124B (2018 & Newer) Fault Code: 1143 PID: SID 004 SPN: 654 FMI: 7 Injector Solenoid Driver Cylinder 4- Mechanical System Not Responding or Out of Adjustment
Cummins X15 CM2450 X124B (2018 & Newer) Fault Code: 1142 PID: SID 003 SPN: 653 FMI: 7 Injector Solenoid Driver Cylinder 3- Mechanical System Not Responding or Out of Adjustment
Cummins X15 CM2450 X124B (2018 & Newer) Fault Code: 1141 PID: 1141 SPN: 652 FMI: 7 Injector Solenoid Driver Cylinder 2- Mechanical System Not Responding or Out of Adjustment
Cummins X15 CM2450 X124B (2018 & Newer) Fault Code: 1139 PID: SID 001 SPN: 651 FMI: 7 Injector Solenoid Driver Cylinder 1- Mechanical System Not Responding or Out of Adjustment
Circuit DescriptionThe crankshaft position and camshaft position sensors are Hall effect type sensors. The engine control module (ECM) provides a 5 volt supply to the position sensor and a return circuit. As the teeth on the crankshaft speed ring or the dimples in the back of the camshaft gear move past the position sensor, a signal is generated on the position sensor signal circuit. The ECM interprets this signal and converts it to an engine speed. A missing tooth on the crankshaft gear is used by the ECM to determine the position of the engine.
Component LocationThe crankshaft position and camshaft position sensor location varies, depending on engine model.
Conditions for Running the DiagnosticsThis diagnostic runs continuously when the engine is running.
Conditions for Setting the Fault CodesThe Engine Control Module (ECM) detected the crankshaft position and camshaft position signal inputs to the ECM are reversed.
Action Taken When the Fault Code is ActiveThe ECM illuminates the red STOP ENGINE lamp and/or the Malfunction Indicator Lamp (MIL) immediately when the diagnostic runs and fails.
Exhaust Gas Recirculation (EGR) valve operation will be disabled.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 CodeTo validate the repair, perform a key cycle, start the engine and let it idle for 1 minute.The 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 red STOP ENGINE lamp immediately after the diagnostic runs and passes.For On-Board Diagnostics (OBD) engines, the ECM will extinguish the Malfunction Indicator Lamp (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 TalkThis fault code indicates the crankshaft position sensor and the camshaft position sensor wiring harness connectors are reversed. As a result, the engine will not start.
Possible Cause:1) ECM calibration
Cummins X15 CM2450 X124B (2018 & Newer) Fault Code: 111 PID: SID 254 SPN: 629 FMI: 12 Engine Control Module Critical Internal Failure- Bad Intelligent Device or Component
Cummins X15 CM2350 X116B Performance Series (2018 & Newer) Fault Code: 8633 PID: SPN: 12868 FMI: 13/13 TSC1 Control Purpose P7 Inhibit Command – Out of Calibration
Cummins X15 CM2350 X116B Performance Series (2018 & Newer) Fault Code: 7397 PID: SPN: 102 FMI: 0/0 Engine Intake Manifold Pressure – Data Valid But Above Normal Operating Range – Most Severe Level
Cummins X15 CM2350 X116B Performance Series (2018 & Newer) Fault Code: 7234 PID: SPN: 188 FMI: 1/17 Engine Speed At Idle – Data Valid But Below Normal Operating Range – Least Severe Level
Cummins X15 CM2350 X116B Performance Series (2018 & Newer) Fault Code: 7233 PID: SPN: 102 FMI: 1/1 Engine Intake Manifold Pressure – Data Valid But Below Normal Operating Range – Most Severe Level
