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PACCAR PX-9 CM2350 (2013-17) Fault Code:111 PID:SID 254 SPN:629 FMI:12 Engine Control Module Critical Internal Failure -Bad Intelligent Device or Component

Reason:
Engine Control Module Critical Internal Failure -Bad Intelligent Device or Component. Error internal to the engine control module (ECM) related to memory hardware malfunctions or internal ECM voltage supply circuits.

Effect:
Engine may not start or may be difficult to start.

Circuit Description:
The ECM has internal diagnostics that continuously run and check the internal memory.

Component Location:
The Engine Control Module (ECM) is mounted on the intake manifold side of the engine.

Conditions for Running the Diagnostics:
This diagnostic runs continuously when the keyswitch is in the ON position or when the engine is running.

Conditions for Setting the Fault Codes:
The Engine Control Module (ECM) detected a read or write error internal to the ECM.

Action Taken When the Fault Code is Active:
The 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 Code:
1) To validate the repair, perform a key cycle, start the engine and let it idle for 1 minute.
2) The fault code status displayed by your diagnostic service tool will change to INACTIVE immediately after the diagnostic runs and passes.
3) The ECM will turn off the red STOP ENGINE lamp immediately after the diagnostic runs and passes.
4) 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.
5) The Reset All Faults command in your diagnostic service tool can be used to clear active and inactive faults, as well as extinguish the MIL for OBD applications.

Shop Talk:
This fault code can only be caused by an internal ECM problem. Repairs are not possible for the ECM.

Possible Causes:
1) Bad ECM
2) ECM needs a calibration update.

PACCAR PX-9 CM2350 (2013-17) Fault Code197 PID:111 SPN:111 FMI:18 Coolant Level – Data Valid But Below Normal Operational Range – Moderately Severe Level
PACCAR PX-9 CM2350 (2013-17) Fault Code:197 PID:111 SPN:111 FMI:1 Coolant Level – Data Valid But Below Normal Operational Range – Moderately Severe Level
PACCAR PX-9 CM2350 (2013-17) Fault Code:196-3 PID:111 SPN:111 FMI:4 Coolant Level Sensor 1 Circuit – Voltage Below Normal or Shorted to Low Source
PACCAR PX-9 CM2350 (2013-17) Fault Code:1963 PID:SID 332 SPN:3482 FMI:7 Aftertreatment Fuel Shutoff Valve – Mechanical System Not Responding or Out of Adjustment
PACCAR PX-9 CM2350 (2013-17) Fault Code:196-2 PID:111 SPN:111 FMI:4 Coolant Level Sensor 1 Circuit – Voltage Below Normal or Shorted to Low Source
PACCAR PX-9 CM2350 (2013-17) Fault Code:1962 PID:SID 27 SPN:641 FMI:15 VGT Actuator Driver Over Temperature (Calculated) – Data Valid But Above Normal Operating Range – Least Severe Level

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PACCAR PX-9 CM2350 (2013-17) Fault Code:1117 PID:SID251 SPN:3597 FMI:2 Power Supply Lost With Ignition On – Data Erratic, Intermittent, or Incorrect

Reason:
Power Supply Lost With Ignition On – Data Erratic, Intermittent, or Incorrect. Supply voltage to the ECM fell below a calibrated limit momentarily, or the ECM was not allowed to power down correctly (retain battery voltage for 30 seconds after key OFF).

Effect:
Possible reduced engine performance

Circuit Description:
The 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 vehicle keyswitch wire when the vehicle keyswitch is turned ON.

Component Location:
The 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 Diagnostics:
This diagnostic runs continuously when the keyswitch is in the ON position or when the engine is running.

Conditions for Setting the Fault Codes:
The Engine Control Module (ECM) detected the primary ECM power supply dropped below a calibratible value while the keyswitch was in the ON position. The fault code will be active when the keyswitch is turned ON following the incomplete power-down event.

Action Taken When the Fault Code is Active:
1) The ECM logs the fault code immediately when the diagnostic runs and fails.
2) 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 Code:
1) To validate the repair, start the engine, let it idle for 1 minute, and then shutdown the engine.
2) The fault code status displayed by INSITE™ electronic service tool will change to INACTIVE immediately after the diagnostic runs and passes.
3) 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 Talk:
Make sure the ECM unswitched battery supply is coming directly from the battery and not the starter. If unswitched power is coming from the starter, it is possible for the battery voltage to drop low enough during cranking to set this fault active.This fault can also be caused by resistance in the ECM battery supply (+) or (-) circuits. Resistance in these circuits can cause the voltage level at the ECM input to drop low enough to set Fault Code 1117 active. Use of battery disconnect switches to turn off the engine or any device that disconnects battery voltage to the ECM within 10 seconds of turning the keyswitch OFF can cause damage to the aftertreatment system. The vehicle should not be operated with an active Fault Code 1117. Reference the appropriate OEM wiring diagram when troubleshooting circuits that utilize wiring supplied by the OEM.

Possible Causes:
1) Inactive fault codes
2) Faulty batteries
3) Bad power connector
4) Blown fuse

PACCAR PX-9 CM2350 (2013-17) Fault Code:3634 PID: SPN:5484 FMI:4 Engine Fan Clutch 2 Control Circuit – Voltage Below Normal or Shorted to Low Source
PACCAR PX-9 CM2350 (2013-17) Fault Code:3633 PID: SPN:5484 FMI:3 Engine Fan Clutch 2 Control Circuit – Voltage Above Normal or Shorted to High Source
PACCAR PX-9 CM2350 (2013-17) Fault Code:3616 PID:SID 27 SPN:2633 FMI:7 Engine VGT Nozzle Position – Mechanical System Not Responding or Out of Adjustment
PACCAR PX-9 CM2350 (2013-17) Fault Code:3596 PID: SPN:3596 FMI:2 Aftertreatment 1 Diesel Exhaust Fluid Pressure – Data Erratic, Intermittent, or Incorrect
PACCAR PX-9 CM2350 (2013-17) Fault Code:3583 PID: SPN:5031 FMI:10 Aftertreatment 1 Outlet NOx Sensor Heater – Abnormal Rate of Change
PACCAR PX-9 CM2350 (2013-17) Fault Code:3582 PID: SPN:4364 FMI:1 Aftertreatment SCR Catalyst Conversion Efficiency – Data Valid But Below Normal Operating Range – Moderately Severe Level

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PACCAR PX-9 CM2350 (2013-17) Fault Code:1139 PID:SID1 SPN:651 FMI:7 Injector Solenoid Driver Cylinder 1 – Mechanical System Not Responding or Out of Adjustment

Reason:
Injector Solenoid Driver Cylinder 1 – Mechanical System Not Responding or Out of Adjustment. The ECM has detected an error with the injection timing or quantity.

Effect:
Possible reduced engine performance

Circuit Description:
The 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 Location:
The 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 Diagnostics:
This diagnostic runs periodically during engine operation.

Conditions for Setting the Fault Codes:
The Engine Control Module (ECM) detected a fueling timing or quantity error for the specified injector.

Action Taken When the Fault Code is Active:
The 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 Code:
It 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 Talk:
This fault code is intended to identify fueling quantity and timing issues

Possible Causes:
1) Inactive fault codes
2) Faulty fuel injector

PACCAR PX-9 CM2350 (2013-17) Fault Code:1117 PID:SID251 SPN:3597 FMI:2 Power Supply Lost With Ignition On – Data Erratic, Intermittent, or Incorrect
PACCAR PX-9 CM2350 (2013-17) Fault Code:3634 PID: SPN:5484 FMI:4 Engine Fan Clutch 2 Control Circuit – Voltage Below Normal or Shorted to Low Source
PACCAR PX-9 CM2350 (2013-17) Fault Code:3633 PID: SPN:5484 FMI:3 Engine Fan Clutch 2 Control Circuit – Voltage Above Normal or Shorted to High Source
PACCAR PX-9 CM2350 (2013-17) Fault Code:3616 PID:SID 27 SPN:2633 FMI:7 Engine VGT Nozzle Position – Mechanical System Not Responding or Out of Adjustment
PACCAR PX-9 CM2350 (2013-17) Fault Code:3596 PID: SPN:3596 FMI:2 Aftertreatment 1 Diesel Exhaust Fluid Pressure – Data Erratic, Intermittent, or Incorrect
PACCAR PX-9 CM2350 (2013-17) Fault Code:3583 PID: SPN:5031 FMI:10 Aftertreatment 1 Outlet NOx Sensor Heater – Abnormal Rate of Change

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PACCAR PX-9 CM2350 (2013-17) Fault Code:1141 PID:SID2 SPN:652 FMI:7 Injector Solenoid Driver Cylinder 2 – Mechanical System Not Responding or Out of Adjustment

Reason:
Injector Solenoid Driver Cylinder 2 – Mechanical System Not Responding or Out of Adjustment. The ECM has detected an error with the injection timing or quantity.

Effect:
Possible reduced engine performance.

Circuit Description:
The 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 Location:
The 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 Diagnostics:
This diagnostic runs periodically during engine operation.

Conditions for Setting the Fault Codes:
The Engine Control Module (ECM) detected a fueling timing or quantity error for the specified injector.

Action Taken When the Fault Code is Active:
The 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 Code:
It 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 Talk:
This fault code is intended to identify fueling quantity and timing issues.

Possible Causes:
1) Inactive fault codes
2) Faulty fuel injector

PACCAR PX-9 CM2350 (2013-17) Fault Code:1139 PID:SID1 SPN:651 FMI:7 Injector Solenoid Driver Cylinder 1 – Mechanical System Not Responding or Out of Adjustment
PACCAR PX-9 CM2350 (2013-17) Fault Code:1117 PID:SID251 SPN:3597 FMI:2 Power Supply Lost With Ignition On – Data Erratic, Intermittent, or Incorrect
PACCAR PX-9 CM2350 (2013-17) Fault Code:3634 PID: SPN:5484 FMI:4 Engine Fan Clutch 2 Control Circuit – Voltage Below Normal or Shorted to Low Source
PACCAR PX-9 CM2350 (2013-17) Fault Code:3633 PID: SPN:5484 FMI:3 Engine Fan Clutch 2 Control Circuit – Voltage Above Normal or Shorted to High Source
PACCAR PX-9 CM2350 (2013-17) Fault Code:3616 PID:SID 27 SPN:2633 FMI:7 Engine VGT Nozzle Position – Mechanical System Not Responding or Out of Adjustment
PACCAR PX-9 CM2350 (2013-17) Fault Code:3596 PID: SPN:3596 FMI:2 Aftertreatment 1 Diesel Exhaust Fluid Pressure – Data Erratic, Intermittent, or Incorrect

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PACCAR PX-9 CM2350 (2013-17) Fault Code:1142 PID:SID3 SPN:653 FMI:7 Injector Solenoid Driver Cylinder 3 – Mechanical System Not Responding or Out of Adjustment

Reason:
Injector Solenoid Driver Cylinder 3 – Mechanical System Not Responding or Out of Adjustment. The ECM has detected an error with the injection timing or quantity.

Effect:
Possible reduced engine performance

Circuit Description:
The 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 Location:
The 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 Diagnostics:
This diagnostic runs periodically during engine operation.

Conditions for Setting the Fault Codes:
The Engine Control Module (ECM) detected a fueling timing or quantity error for the specified injector.

Action Taken When the Fault Code is Active:
The 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 Code:
It 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 Talk:
This fault code is intended to identify fueling quantity and timing issues.

Possible Causes:
1) Inactive fault codes
2) Faulty ECM

PACCAR PX-9 CM2350 (2013-17) Fault Code:1141 PID:SID2 SPN:652 FMI:7 Injector Solenoid Driver Cylinder 2 – Mechanical System Not Responding or Out of Adjustment
PACCAR PX-9 CM2350 (2013-17) Fault Code:1139 PID:SID1 SPN:651 FMI:7 Injector Solenoid Driver Cylinder 1 – Mechanical System Not Responding or Out of Adjustment
PACCAR PX-9 CM2350 (2013-17) Fault Code:1117 PID:SID251 SPN:3597 FMI:2 Power Supply Lost With Ignition On – Data Erratic, Intermittent, or Incorrect
PACCAR PX-9 CM2350 (2013-17) Fault Code:3634 PID: SPN:5484 FMI:4 Engine Fan Clutch 2 Control Circuit – Voltage Below Normal or Shorted to Low Source
PACCAR PX-9 CM2350 (2013-17) Fault Code:3633 PID: SPN:5484 FMI:3 Engine Fan Clutch 2 Control Circuit – Voltage Above Normal or Shorted to High Source
PACCAR PX-9 CM2350 (2013-17) Fault Code:3616 PID:SID 27 SPN:2633 FMI:7 Engine VGT Nozzle Position – Mechanical System Not Responding or Out of Adjustment

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PACCAR PX-9 CM2350 (2013-17) Fault Code:1143 PID:SID4 SPN:654 FMI:7 Injector Solenoid Driver Cylinder 4 – Mechanical System Not Responding or Out of Adjustment

Reason:
Injector Solenoid Driver Cylinder 4 – Mechanical System Not Responding or Out of Adjustment. The ECM has detected an error with the injection timing or quantity.

Effect:
Possible reduced engine performance

Circuit Description:
The 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 Location:
The 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 Diagnostics:
This diagnostic runs periodically during engine operation.

Conditions for Setting the Fault Codes:
The Engine Control Module (ECM) detected a fueling timing or quantity error for the specified injector.

Action Taken When the Fault Code is Active:
The 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 Code:
It 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 Talk:
This fault code is intended to identify fueling quantity and timing issues

Possible Causes:
1) Inactive fault codes
2) Faulty fuel injector
3) Faulty ECM

PACCAR PX-9 CM2350 (2013-17) Fault Code:1142 PID:SID3 SPN:653 FMI:7 Injector Solenoid Driver Cylinder 3 – Mechanical System Not Responding or Out of Adjustment
PACCAR PX-9 CM2350 (2013-17) Fault Code:1141 PID:SID2 SPN:652 FMI:7 Injector Solenoid Driver Cylinder 2 – Mechanical System Not Responding or Out of Adjustment
PACCAR PX-9 CM2350 (2013-17) Fault Code:1139 PID:SID1 SPN:651 FMI:7 Injector Solenoid Driver Cylinder 1 – Mechanical System Not Responding or Out of Adjustment
PACCAR PX-9 CM2350 (2013-17) Fault Code:1117 PID:SID251 SPN:3597 FMI:2 Power Supply Lost With Ignition On – Data Erratic, Intermittent, or Incorrect
PACCAR PX-9 CM2350 (2013-17) Fault Code:3634 PID: SPN:5484 FMI:4 Engine Fan Clutch 2 Control Circuit – Voltage Below Normal or Shorted to Low Source
PACCAR PX-9 CM2350 (2013-17) Fault Code:3633 PID: SPN:5484 FMI:3 Engine Fan Clutch 2 Control Circuit – Voltage Above Normal or Shorted to High Source

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PACCAR PX-9 CM2350 (2013-17) Fault Code:1144 PID:SID5 SPN:655 FMI:7 Injector Solenoid Driver Cylinder 5 – Mechanical System Not Responding or Out of Adjustment

Reason:
Injector Solenoid Driver Cylinder 5 – Mechanical System Not Responding or Out of Adjustment. The ECM has detected an error with the injection timing or quantity.

Effect:
Possible reduced engine performance

Circuit Description:
The 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 Location:
The 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 Diagnostics:
This diagnostic runs periodically during engine operation.

Conditions for Setting the Fault Codes:
The Engine Control Module (ECM) detected a fueling timing or quantity error for the specified injector.

Action Taken When the Fault Code is Active:
The 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 Code:
It 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 Talk:
This fault code is intended to identify fueling quantity and timing issues.

Possible Causes:
1) Inactive fault codes
2) Faulty fuel injector

PACCAR PX-9 CM2350 (2013-17) Fault Code:1143 PID:SID4 SPN:654 FMI:7 Injector Solenoid Driver Cylinder 4 – Mechanical System Not Responding or Out of Adjustment
PACCAR PX-9 CM2350 (2013-17) Fault Code:1142 PID:SID3 SPN:653 FMI:7 Injector Solenoid Driver Cylinder 3 – Mechanical System Not Responding or Out of Adjustment
PACCAR PX-9 CM2350 (2013-17) Fault Code:1141 PID:SID2 SPN:652 FMI:7 Injector Solenoid Driver Cylinder 2 – Mechanical System Not Responding or Out of Adjustment
PACCAR PX-9 CM2350 (2013-17) Fault Code:1139 PID:SID1 SPN:651 FMI:7 Injector Solenoid Driver Cylinder 1 – Mechanical System Not Responding or Out of Adjustment
PACCAR PX-9 CM2350 (2013-17) Fault Code:1117 PID:SID251 SPN:3597 FMI:2 Power Supply Lost With Ignition On – Data Erratic, Intermittent, or Incorrect
PACCAR PX-9 CM2350 (2013-17) Fault Code:3634 PID: SPN:5484 FMI:4 Engine Fan Clutch 2 Control Circuit – Voltage Below Normal or Shorted to Low Source

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PACCAR PX-9 CM2350 (2013-17) Fault Code:1145 PID:SID6 SPN:656 FMI:7 Injector Solenoid Driver Cylinder 6 – Mechanical System Not Responding or Out of Adjustment

Reason:
Injector Solenoid Driver Cylinder 6 – Mechanical System Not Responding or Out of Adjustment. The ECM has detected an error with the injection timing or quantity.

Effect:
Possible reduced engine performance.

Circuit Description:
The 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 Location:
The 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 Diagnostics:
This diagnostic runs periodically during engine operation.

Conditions for Setting the Fault Codes:
The Engine Control Module (ECM) detected a fueling timing or quantity error for the specified injector.

Action Taken When the Fault Code is Active:
The 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 Code:
It 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 Talk:
This fault code is intended to identify fueling quantity and timing issues.

Possible Causes:
1) Inactive fault codes
2) Faulty ECM

PACCAR PX-9 CM2350 (2013-17) Fault Code:1144 PID:SID5 SPN:655 FMI:7 Injector Solenoid Driver Cylinder 5 – Mechanical System Not Responding or Out of Adjustment
PACCAR PX-9 CM2350 (2013-17) Fault Code:1143 PID:SID4 SPN:654 FMI:7 Injector Solenoid Driver Cylinder 4 – Mechanical System Not Responding or Out of Adjustment
PACCAR PX-9 CM2350 (2013-17) Fault Code:1142 PID:SID3 SPN:653 FMI:7 Injector Solenoid Driver Cylinder 3 – Mechanical System Not Responding or Out of Adjustment
PACCAR PX-9 CM2350 (2013-17) Fault Code:1141 PID:SID2 SPN:652 FMI:7 Injector Solenoid Driver Cylinder 2 – Mechanical System Not Responding or Out of Adjustment
PACCAR PX-9 CM2350 (2013-17) Fault Code:1139 PID:SID1 SPN:651 FMI:7 Injector Solenoid Driver Cylinder 1 – Mechanical System Not Responding or Out of Adjustment
PACCAR PX-9 CM2350 (2013-17) Fault Code:1117 PID:SID251 SPN:3597 FMI:2 Power Supply Lost With Ignition On – Data Erratic, Intermittent, or Incorrect

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PACCAR PX-9 CM2350 (2013-17) Fault Code:115 PID:190 SPN:612 FMI:2 Engine Magnetic Speed/Position Lost Both of Two Signals – Data Erratic, Intermittent, or Incorrect

Reason:
Engine Magnetic Speed/Position Lost Both of Two Signals – Data Erratic, Intermittent, or Incorrect. The ECM has detected the primary and backup speed sensor signals are connected backwards.

Effect:
The engine will shut down or will not start.

Circuit Description:
The 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 Location:
The crankshaft position and camshaft position sensor location varies, depending on engine model.

Conditions for Running the Diagnostics:
This diagnostic runs continuously when the engine is running.

Conditions for Setting the Fault Codes:
The 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 Active:
1) The ECM illuminates the red STOP ENGINE lamp and/or the Malfunction Indicator Lamp (MIL) immediately when the diagnostic runs and fails.
2) Exhaust Gas Recirculation (EGR) valve operation will be disabled.
3) 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 Code:
1) To validate the repair, perform a key cycle, start the engine and let it idle for 1 minute.
2) The fault code status displayed by INSITE™ electronic service tool will change to INACTIVE immediately after the diagnostic runs and passes.
3) The ECM will turn off the red STOP ENGINE lamp immediately after the diagnostic runs and passes.
4) 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 Talk:
This 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 Causes:
1) Bad ECM

PACCAR PX-9 CM2350 (2013-17) Fault Code:1145 PID:SID6 SPN:656 FMI:7 Injector Solenoid Driver Cylinder 6 – Mechanical System Not Responding or Out of Adjustment
PACCAR PX-9 CM2350 (2013-17) Fault Code:1144 PID:SID5 SPN:655 FMI:7 Injector Solenoid Driver Cylinder 5 – Mechanical System Not Responding or Out of Adjustment
PACCAR PX-9 CM2350 (2013-17) Fault Code:1143 PID:SID4 SPN:654 FMI:7 Injector Solenoid Driver Cylinder 4 – Mechanical System Not Responding or Out of Adjustment
PACCAR PX-9 CM2350 (2013-17) Fault Code:1142 PID:SID3 SPN:653 FMI:7 Injector Solenoid Driver Cylinder 3 – Mechanical System Not Responding or Out of Adjustment
PACCAR PX-9 CM2350 (2013-17) Fault Code:1141 PID:SID2 SPN:652 FMI:7 Injector Solenoid Driver Cylinder 2 – Mechanical System Not Responding or Out of Adjustment
PACCAR PX-9 CM2350 (2013-17) Fault Code:1139 PID:SID1 SPN:651 FMI:7 Injector Solenoid Driver Cylinder 1 – Mechanical System Not Responding or Out of Adjustment

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PACCAR PX-9 CM2350 (2013-17) Fault Code:122 PID:120 SPN:102 FMI:3 Intake Manifold 1 Pressure Sensor Circuit – Voltage Above Normal or Shorted to High Source

Reason:
Intake Manifold 1 Pressure Sensor Circuit – Voltage Above Normal or Shorted to High Source. High signal voltage detected at the intake manifold pressure circuit.

Effect:
Possible reduced engine performance.

Circuit Description:
The engine control module (ECM) provides a 5 volt supply to the intake manifold pressure sensor on the sensor supply circuit. The ECM also provides a ground on the sensor return circuit. The intake manifold pressure sensor provides a signal to the ECM on the intake manifold pressure sensor signal circuit. This sensor signal voltage changes based on the pressure in the intake manifold.

Component Location:
The intake manifold 1 pressure/temperature sensor is located in the air intake horn.

Conditions for Running the Diagnostics:
This diagnostic runs continuously when the keyswitch is in the ON position or when the engine is running.

Conditions for Setting the Fault Codes:
The Engine Control Module (ECM) detected the intake manifold pressure signal voltage was out of range high.

Action Taken When the Fault Code is Active:
1) The ECM illuminates the amber CHECK ENGINE lamp and/or the Malfunction Indicator Lamp (MIL) immediately when the diagnostic runs and fails.
2) A default value of the intake manifold pressure reading is used.
3) Diesel exhaust fluid injection into the aftertreatment system is disabled.
4) Active and stationary regeneration of the diesel particulate filter will be disabled.
5) Exhaust Gas Recirculation (EGR) valve operation will be disabled.
6) 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 Code:
1) To validate the repair, perform a key cycle, start the engine and let it idle for 1 minute.
2) The fault code status displayed by electronic service tool will change to INACTIVE immediately after the diagnostic runs and passes.
3) The ECM will turn off the amber CHECK ENGINE lamp immediately after the diagnostic runs and passes.
4) 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 Talk:
The intake manifold pressure sensor shares supply and return wires in the engine harness with other sensors. Opens and shorts in the engine harness can cause multiple fault codes to be active. Before troubleshooting Fault Code 122, check for multiple faults.

Possible Causes:
1) Open return circuit in the engine harness, connectors, or sensor
2) Signal wire shorted to sensor supply or battery voltage.
3) Malfunctioning intake manifold pressure/temperature sensor

PACCAR PX-9 CM2350 (2013-17) Fault Code:115 PID:190 SPN:612 FMI:2 Engine Magnetic Speed/Position Lost Both of Two Signals – Data Erratic, Intermittent, or Incorrect
PACCAR PX-9 CM2350 (2013-17) Fault Code:1145 PID:SID6 SPN:656 FMI:7 Injector Solenoid Driver Cylinder 6 – Mechanical System Not Responding or Out of Adjustment
PACCAR PX-9 CM2350 (2013-17) Fault Code:1144 PID:SID5 SPN:655 FMI:7 Injector Solenoid Driver Cylinder 5 – Mechanical System Not Responding or Out of Adjustment
PACCAR PX-9 CM2350 (2013-17) Fault Code:1143 PID:SID4 SPN:654 FMI:7 Injector Solenoid Driver Cylinder 4 – Mechanical System Not Responding or Out of Adjustment
PACCAR PX-9 CM2350 (2013-17) Fault Code:1142 PID:SID3 SPN:653 FMI:7 Injector Solenoid Driver Cylinder 3 – Mechanical System Not Responding or Out of Adjustment
PACCAR PX-9 CM2350 (2013-17) Fault Code:1141 PID:SID2 SPN:652 FMI:7 Injector Solenoid Driver Cylinder 2 – Mechanical System Not Responding or Out of Adjustment

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