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Cummins Fault Codes List: 2363 (MR) to 2637

Page 6 of 19 of the full Cummins fault code list (1,847 codes). Each entry is the code as the machine reports it and what the manufacturer data says it means.

Cummins codes 2363 (MR) to 2637

  • 2363 (MR)Engine Brake Actuator Driver Output 2 Circuit - Voltage Below Normal or Shorted to Low Source
  • 2365Engine Brake Actuator Driver Output 3 Circuit - Voltage Below Normal, or Shorted to Low Source. Low voltage detected at the engine brake solenoid Number 3 signal circuit.
  • 2366Engine Brake Actuator Circuit #1 - Voltage Above Normal or Shorted to High Source. Open circuit or high voltage detected at the engine brake solenoid number 1 signal circuit.
  • 2366 (V1)Engine Brake Actuator Circuit Number 1 - shorted high. Open circuit or high voltage detected at the engine brake solenoid number 1 signal circuit.
  • 2366 (V2)Engine Brake Actuator Circuit Number 1 - shorted high. Open circuit or high voltage detected at the engine brake solenoid number 1 signal circuit.
  • 2367Engine Brake Actuator Driver Output 2 Circuit - Voltage Above Normal or Shorted to High Source. Open circuit or high voltage detected at the engine brake solenoid number 2 signal circuit.
  • 2367 (HD)Engine Brake Actuator Driver Output 2 Circuit - Voltage Above Normal or Shorted to High Source
  • 2367 (Heavy Duty)Engine Brake Actuator Driver Output 2 Circuit - Voltage Above Normal or Shorted to High Source
  • 2367 (ISM)Engine Brake Actuator Driver Output 2 Circuit - Voltage Above Normal, or Shorted to High Source. Open circuit or high voltage detected at the engine brake solenoid Number 2 signal circuit.
  • 2367 (ISX)Engine Brake Actuator Driver Output 2 Circuit - Voltage Above Normal, or Shorted to High Source. Open circuit or high voltage detected at the engine brake solenoid Number 2 signal circuit.
  • 2367 (Midrange)Engine Brake Actuator Driver Output 2 Circuit - Voltage Above Normal or Shorted to High Source
  • 2367 (MR)Engine Brake Actuator Driver Output 2 Circuit - Voltage Above Normal or Shorted to High Source
  • 2367 (V1)Engine Brake Actuator Driver Output 2 Circuit - Voltage Above Normal or Shorted to High Source. Open circuit or high voltage detected at the engine brake solenoid Number 2 signal circuit.
  • 2367 (V2)Engine Brake Actuator Driver Output 2 Circuit - Voltage Above Normal or Shorted to High Source. Open circuit or high voltage detected at the engine brake solenoid number 2 signal circuit.
  • 2368Engine Brake Actuator Driver Output 3 Circuit - Voltage Above Normal, or Shorted to High Source. Open circuit or high voltage detected at the engine brake solenoid Number 3 signal circuit.
  • 2369Engine (Exhaust) Brake Driver Circuit - Voltage Below Normal or Shorted to Low Source.
  • 237External Speed Command Input (Multiple Unit Synchronization) - Data Erratic, Intermittent, or Incorrect. The throttle input signal to the primary or secondary engine for multiple unit synchronization is less than 3 percent or more than 97 percent.
  • 2371Engine (Exhaust) Brake Driver Circuit - Voltage Above Normal or Shorted to High Source.
  • 2372Fuel Filter Differential Pressure - Data Valid but Above Normal Operational Range - Moderately Severe Level. Fuel filter is plugged or fuel inlet restriction is high.
  • 2373Exhaust Gas Pressure Sensor Circuit - Voltage Above Normal, or Shorted to High Source. High signal voltage detected at the exhaust gas pressure circuit.
  • 2374Exhaust Gas Pressure Sensor Circuit - Voltage Below Normal, or Shorted to Low Source. Low signal voltage detected at the exhaust gas pressure circuit.
  • 2375Exhaust Gas Recirculation Temperature Sensor Circuit - Voltage Above Normal or Shorted to High Source. High signal voltage detected at EGR temperature circuit.
  • 2376Recirculation Exhaust Gas (EGR) Temperature Sensor Circuit - Voltage Below Normal or Shorted to Low Source. Low signal voltage detected at the EGR temperature circuit.
  • 2377Fan Control Circuit - Voltage Above Normal, or Shorted to High Source. Open circuit or high voltage detected at the fan control circuit.
  • 238Sensor Supply 3 Circuit - Voltage Below Normal, or Shorted to Low Source. Low voltage detected on the +5 volt sensor supply circuit to the engine speed sensor.
  • 2381Turbocharger position sensor circuit - shorted high. High signal voltage detected at the turbocharger position sensor circuit.
  • 2382Turbocharger position sensor circuit - shorted low. Low signal voltage detected at the turbocharger position sensor circuit.
  • 2383Variable Geometry Turbocharger actuator circuit - current below normal, or open circuit.
  • 2384Variable geometry turbocharger actuator driver circuit - voltage below normal or shorted to low source. Low voltage detected at turbocharger control valve circuit.
  • 2384 BVGT Actuator Driver Circuit - Voltage Below Normal, or Shorted to Low Source
  • 2384 CLVGT Actuator - Voltage Below Normal or Shorted to Low Source
  • 2384 (ISB)VGT actuator driver circuit - voltage below normal, or shorted to low source.
  • 2384 (ISC)VGT Actuator - Voltage Below Normal or Shorted to Low Source. Low voltage detected at turbocharger control valve circuit.
  • 2385Variable geometry turbocharger actuator driver circuit - voltage above normal or shorted to high source. Open circuit or high voltage detected at turbocharger control valve circuit.
  • 2385 BVGT Actuator Driver Circuit - Voltage Above Normal or Shorted to High Source
  • 2385 CLVGT Actuator - Voltage Above Normal or Shorted to High Source
  • 2385 (ISB)VGT actuator driver circuit - voltage above normal or shorted to high source.
  • 2385 (ISC)VGT Actuator - Voltage Above Normal or Shorted to High Source. Open circuit or high voltage detected at turbocharger control valve circuit.
  • 2386Turbocharger actuator motor circuit - current is above normal. Excessive current detected at the turbocharger actuator motor circuit.
  • 2387VGT Actuator Driver Circuit (Motor) - Mechanical System Not Responding Properly or Out of Adjustment. The smart VGT controller has detected incorrect stop limits, or the VGT is unable to move to the closed position.
  • 2388Variable Geometry Turbocharger actuator position failed automatic calibration procedure - out of calibration.
  • 239Sensor Supply 3 Circuit - Voltage Above Normal or Shorted to High Source. High voltage detected at sensor supply number 3 circuit.
  • 2398Ambient Air Temperature - Data Erratic, Intermittent, or Incorrect.
  • 241Wheel-Based Vehicle Speed - Data Erratic, Intermittent, or Incorrect. The ECM lost the vehicle speed signal or is reading an erratic value.
  • 2412Fan Speed - Data Erratic, Intermittent, or Incorrect. The fan speed signal has been lost.
  • 2416Engine Control Module Calibration Memory Checksum- Out of Calibration
  • 241(Auto)Vehicle Speed sensor Circuit
  • 241(Industrial)Vehicle Speed sensor Circuit
  • 242Vehicle Speed Sensor Circuit Tampering Has Been Detected - Abnormal Rate of Change. Invalid or inappropriate vehicle speed signal. Signal indicates an intermittent connection or VSS tampering.
  • 243Exhaust Brake Supply Circuit
  • 243-ISCError detected in engine brake relay enable circuit at pin 42 of the engine harness
  • 243-ISLError detected in engine brake relay enable circuit at pin 42 of the engine harness.
  • 2442Injector Solenoid Driver Cylinder 1 - Out of Calibration.
  • 2443Inector Solenoid Driver Cylinder 2 - Out of Calibration.
  • 2444Injector Solenoid Driver Cylinder 3 - Out of Calibration.
  • 2445Injector Solenoid Driver Cylinder 4 - Out of Calibration.
  • 2446Injector Solenoid Driver Cylinder 5 - Out of Calibration
  • 2447Injector Solenoid Driver Cylinder 6 - Out of Calibration
  • 2448Coolant Level - Data Valid But Below Normal Operational Range - Least Severe Level. Low engine coolant level detected.
  • 2449VGT Actuator Controller - Out of Calibration. The VGT has failed the automatic calibration procedure at initial key-ON.
  • 245Less than 6 VDC detected at fan clutch when on. Indicates an excessive current draw from the electronic control module (ECM) or a faulty ECM output circuit.
  • 2451Turbocharger Turbine Inlet Temperature (Calculated) - Data Valid but Above Normal Operational Range - Moderately Severe Level. Turbocharger turbine inlet temperature has exceeded the engine protection limit.
  • 2457Engine Misfire for Multiple Cylinders - Condition Exists
  • 2468Engine Crankshaft Speed/Position - Data Valid But Above Normal Operating Range - Moderately Severe Level
  • 2474Turbocharger 1 Speed - Data Erratic, Intermittent, or Incorrect
  • 248Exhaust Gas Temperature - Data Valid but Above Normal Operating Range - Moderately Severe Level
  • 2488Coolant Level - Data Valid But Below Normal Operational Range - Least Severe Level
  • 249Ambient Air Temperature Sensor 1 Circuit - Voltage Above Normal or Shorted to High Source. High signal voltage detected at ambient air temperature circuit.
  • 252Engine Oil Level - Data Erratic, Intermittent, or Incorrect. An intermittent signal is being received from the oil level sensor.
  • 253Engine Oil Level — Data Valid But Below Normal Operational Range — Most Severe Level. Very low oil level has been detected by the oil level sensor.
  • 2533Engine Misfire Cylinder 1 - Condition Exists
  • 2534Engine Misfire Cylinder 2 - Condition Exists
  • 2535Engine Misfire Cylinder 3 - Condition Exists
  • 2536Engine Misfire Cylinder 4 - Condition Exists
  • 2537Engine Misfire Cylinder 5 - Condition Exists
  • 2538Engine Misfire Cylinder 6 - Condition Exists
  • 254Less than (+) 6 VDC detected at fuel shutoff circuit or an excessive current draw from the electronic control module (ECM) or faulty ECM output circuit.
  • 255Engine Fuel Shutoff Valve Driver Circuit - Voltage Above Normal or Shorted to High Source. Open circuit or short to voltage source detected at fuel shutoff valve circuit.
  • 2551Injector Metering Rail 2 Pressure - Data Valid but Above Normal Operating Range - Moderately Severe Level. Unexpected high fueling detected on the rear bank.
  • 2552Injector Metering Rail 1 Pressure - Data Valid but Above Normal Operating Range - Moderately Severe Level. Unexpected high fueling detected on the front bank.
  • 2554Exhaust pressure sensor circuit - data erratic, intermittent, or incorrect. An error in the exhaust pressure sensor signal was detected by the ECM.
  • 2555Intake Air Heater #1 Circuit - Voltage Above Normal or Shorted to High Source. High voltage detected at the intake air heater signal circuit.
  • 2556Intake Air Heater #1 Circuit - Voltage Below Normal or Shorted to Low Source. Low voltage detected at the intake air heater signal circuit.
  • 2557Auxiliary PWM Driver #1 - Voltage Above Normal or Shorted to High Source. High signal voltage detected at the analog torque circuit.
  • 2558Auxiliary PWM Driver #1 - Voltage Below Normal or Shorted to Low Source. Low signal voltage detected at the analog torque circuit.
  • 2559Transmission ECU to ECM Communication Lost - Abnormal Update Rate. No communication or an invalid data transfer rate has been detected between the ECM and the transmission ECU.
  • 256Ambient Air Temperature Sensor 1 Circuit - Voltage Below Normal or Shorted to Low Source. Low signal voltage detected at the ambient air temperature circuit.
  • 257Engine Fuel Shutoff Valve Driver - Mechanical System Not Responding Properly or Out of Adjustment.
  • 2571Engine Charge Air Cooler Outlet Temperature - Voltage Above Normal or Shorted to High Source
  • 2572Engine Charge Air Cooler Outlet Temperature - Voltage Below Normal or Shorted to Low Source.
  • 257 (ISM)Engine Fuel Shutoff Valve Driver - Mechanical System Not Responding Properly or Out of Adjustment. Fuel shutoff valve is stuck open mechanically or leaking.
  • 257 (ISX)Engine Fuel Shutoff Valve Driver - Mechanical System Not Responding Properly or Out of Adjustment. Fuel shutoff valve is stuck open mechanically or leaking
  • 259The ECM detected that the fuel shutoff valve is stuck open mechanically or leaking.
  • 261Engine Fuel Temperature - Data Valid but Above Normal Operating Range - Moderately Severe Level
  • 2619Auxiliary Equipment Sensor Input 1 Engine Protection Critical - Special Instructions
  • 263Engine Fuel Temperature Sensor 1 Circuit - Voltage Above Normal or Shorted to High Source. High signal voltage detected at engine fuel temperature circuit.
  • 2634VGT Actuator Controller - Bad Intelligent Device or Component. An internal error has been detected by the smart VGT controller.
  • 2635VGT Actuator Driver Circuit - Condition Exists. A calibration mismatch between the VGT actuator and the ECM has been detected.
  • 2636VGT Actuator Driver Circuit - Abnormal Update Rate. No communications on the J1939 data link between the engine ECM and the smart VGT controller.
  • 2637Catalyst Face Plugged - Root Cause Not Known. The front face of the aftertreatment diesel oxidation catalyst has been detected to be plugged with soot.
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