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Komatsu Engines Fault Codes List: 1977 to 2362

Page 3 of 11 of the full Komatsu Engines fault code list (1,067 codes). Each entry is the code as the machine reports it and what the manufacturer data says it means.

Komatsu Engines codes 1977 to 2362

  • 1977Aftertreatment Doser Circuit - Current Below Normal or Open Circuit.
  • 1978Generator Speed-Load Governing Bias Circuit - Voltage Above Normal or Shorted to High Source
  • 1979Generator Speed-Load Governing Bias Circuit - Voltage Below Normal or Shorted to Low Source
  • 1981Aftertreatment Diesel Particulate Filter System - Data Valid But Above Normal Operational Range - Least Severe Level
  • 1981 (BCL)Aftertreatment Diesel Particulate Filter System - Data Valid But Above Normal Operating Range - Least Severe Level
  • 1981 (ISB, ISC, ISL)Aftertreatment Diesel Particulate Filter System - Data Valid But Above Normal Operating Range - Least Severe Level
  • 1981 (ISX)Aftertreatment Diesel Particulate Filter System - Data Valid But Above Normal Operating Range - Least Severe Level
  • 1981 (X)Aftertreatment Diesel Particulate Filter System - Data Valid But Above Normal Operating Range - Least Severe Level
  • 1992Engine Crankshaft Speed/Position - Data Valid but Above Normal Operational Range - Moderately Severe Level
  • 1993Aftertreatment Diesel Particulate Filter Missing - Condition Exists
  • 2Exhaust Gas Pressure Sensor Number 1 Circuit - Voltage Below Normal, or Shorted to Low Source
  • 212Engine Oil Temperature Sensor 1 Circuit - Voltage Above Normal or Shorted to High Source
  • 213Engine Oil Temperature Sensor 1 Circuit - Voltage Below Normal or Shorted to Low Source
  • 214Engine Oil Temperature - Data Valid But Above Normal Operating Range - Most Severe Level
  • 2182Engine Brake Actuator Driver 1 Circuit - Voltage Above Normal or Shorted to High Source
  • 2182 (HD)Engine Brake Actuator Driver 1 Circuit - Voltage Above Normal or Shorted to High Source
  • 2182 (HEAVY DUTY)Engine Brake Actuator Driver 1 Circuit - Voltage Above Normal or Shorted to High Source
  • 2182 (MIDRANGE)Engine Brake Actuator Driver 1 Circuit - Voltage Above Normal or Shorted to High Source
  • 2182 (MR)Engine Brake Actuator Driver 1 Circuit - Voltage Above Normal or Shorted to High Source
  • 2183Engine Brake Actuator Driver 1 Circuit - Voltage Below Normal or Shorted to Low Source
  • 2183 (HD)Engine Brake Actuator Driver 1 Circuit - Voltage Below Normal or Shorted to Low Source
  • 2183 (HEAVY DUTY)Engine Brake Actuator Driver 1 Circuit - Voltage Below Normal or Shorted to Low Source
  • 2183 (MIDRANGE)Engine Brake Actuator Driver 1 Circuit - Voltage Below Normal or Shorted to Low Source
  • 2183 (MR)Engine Brake Actuator Driver 1 Circuit - Voltage Below Normal or Shorted to Low Source
  • 2185Sensor Supply Voltage 4 Circuit - Voltage Above Normal or Shorted to High Source
  • 2186Sensor Supply Voltage 4 Circuit - Voltage Below Normal or Shorted to Low Source
  • 2191 (HD)Intake Manifold 1 Pressure Sensor - Condition Exists
  • 2191 (HEAVY DUTY)Intake Manifold 1 Pressure Sensor - Condition Exists
  • 2195Auxiliary Equipment Sensor Input 3 Engine Protection Critical - Special Instructions
  • 2198VGT Actuator Driver Circuit - Root Cause Not Known
  • 221Barometric Pressure Sensor Circuit - Voltage Above Normal or Shorted to High Source
  • 2215Fuel Pump Delivery Pressure - Data Valid but Below Operational Range - Moderately Severe Level
  • 2215 (B)Fuel Pump Delivery Pressure - Data Valid But Below Normal Operational Range - Moderately Severe Level
  • 2215 (CL)Fuel Pump Delivery Pressure Low - Data Valid but Below Normal Operational Range - Moderately Severe Level
  • 2216 (B)Fuel Pump Delivery Pressure - Data Valid but Above Normal Operational Range - Moderately Severe Level
  • 2216 (CL)Fuel Pump Delivery Pressure High - Data Valid but Above Normal Operational Range - Moderately Severe Level
  • 2217Engine Control Module Calibration Program Memory (RAM) Corruption - Condition Exists
  • 221 (BCL)Barometric Pressure Sensor Circuit - Voltage Above Normal or Shorted to High Source
  • 221 (ISB, ISC, ISL)Barometric Pressure Sensor Circuit - Voltage Above Normal or Shorted to High Source
  • 221 (ISX)Barometric Pressure Sensor Circuit - Voltage Above Normal or Shorted to High Source
  • 221 (X)Barometric Pressure Sensor Circuit - Voltage Above Normal or Shorted to High Source
  • 222Barometric Pressure Sensor Circuit - Voltage Below Normal, or Shorted to Low Source
  • 222 (BCL)Barometric Pressure Sensor Circuit - Voltage Below Normal or Shorted to Low Source
  • 222 (ISB, ISC, ISL)Barometric Pressure Sensor Circuit - Voltage Below Normal or Shorted to Low Source
  • 222 (ISX)Barometric Pressure Sensor Circuit - Voltage Below Normal or Shorted to Low Source
  • 222 (X)Barometric Pressure Sensor Circuit - Voltage Below Normal or Shorted to Low Source
  • 223Engine Oil Burn Valve Solenoid Driver Circuit - Voltage Below Normal or Shorted to Low Source
  • 224Engine Oil Burn Valve Solenoid Driver Circuit - Voltage Above Normal or Shorted to High Source
  • 2249Injector Metering Rail 1 Pressure - Data Valid but Below Normal Operational Range - Most Severe Level
  • 2261Fuel Pump Delivery Pressure - Data Valid But Above Normal Operating Range - Least Severe Level.
  • 2262Fuel Pump Delivery Pressure - Data Valid but Below Operational Range - Least Severe Level
  • 2265Electric Lift Pump for Engine Fuel Supply Circuit - Voltage Above Normal, or Shorted to High Source
  • 2265 (HD)Electric Lift Pump for Engine Fuel Supply Circuit - Voltage Above Normal or Shorted to High Source
  • 2265 (HEAVY DUTY)Electric Lift Pump for Engine Fuel Supply Circuit - Voltage Above Normal or Shorted to High Source
  • 2265 (MIDRANGE)Electric Lift Pump for Engine Fuel Supply Circuit - Voltage Above Normal or Shorted to High Source
  • 2265 (MR)Electric Lift Pump for Engine Fuel Supply Circuit - Voltage Above Normal or Shorted to High Source
  • 2266Electric Lift Pump for Engine Fuel Supply Circuit - Voltage Below Normal, or Shorted to Low Source
  • 2266 (HD)Electric Lift Pump for Engine Fuel Supply Circuit - Voltage Below Normal or Shorted to Low Source
  • 2266 (HEAVY DUTY)Electric Lift Pump for Engine Fuel Supply Circuit - Voltage Below Normal or Shorted to Low Source
  • 2266 (MIDRANGE)Electric Lift Pump for Engine Fuel Supply Circuit - Voltage Below Normal or Shorted to Low Source
  • 2266 (MR)Electric Lift Pump for Engine Fuel Supply Circuit - Voltage Below Normal or Shorted to Low Source
  • 227Sensor Supply 2 Circuit - Voltage Above Normal or Shorted to High Source
  • 2271EGR Valve Position Sensor Circuit - Voltage Above Normal or Shorted to High Source
  • 2272EGR Valve Position Sensor Circuit - Voltage Below Normal or Shorted to Low Source
  • 2273Exhaust Gas Recirculation Differential Pressure Sensor Circuit - Voltage Above Normal or Shorted to High Source
  • 2274Exhaust Gas Recirculation Differential Pressure Sensor Circuit - Voltage Below Normal or Shorted to Low Source
  • 227 (B)Sensor Supply 2 Circuit - Voltage Above Normal or Shorted to High Source
  • 227 (BM)Sensor Supply 2 Circuit - Voltage Above Normal or Shorted to High Source
  • 2288Turbocharger 1 Speed - Data Valid But Above Normal Operating Range - Least Severe Level
  • 2292Fuel Inlet Meter Device - Data Valid but Above Normal Operational Range - Moderately Severe Level
  • 2293Fuel Inlet Meter Device Flow Demand Lower Than Expected - Data Valid but Below Normal Operational Range - Moderately Severe Level
  • 2311Electronic Fuel Injection Control Valve Circuit - Condition Exists
  • 2311 (BCL)Electronic Fuel Injection Control Valve Circuit - Condition Exists
  • 2311 (ISB, ISC, ISL)Electronic Fuel Injection Control Valve Circuit - Condition Exists
  • 2311 (ISX)Electronic Fuel Injection Control Valve Circuit - Condition Exists
  • 2311 (X)Electronic Fuel Injection Control Valve Circuit - Condition Exists
  • 2321Engine Crankshaft Speed/Position - Data Erratic, Intermittent, or Incorrect
  • 2322Backup Engine Speed/Position Sensor Number 2 - Data Erratic, Intermittent, or Incorrect
  • 233Coolant Pressure - Data Valid But Below Normal Operating Range - Moderately Severe Level
  • 234Engine Crankshaft Speed - Position - Data Valid But Above Normal Operating Range - Most Severe Level
  • 2343Fuel Filter Differential Pressure - Data Valid But Above Normal Operating Range - Least Severe Level
  • 2345 (B)Turbocharger Speed - Invalid Rate of Change Detected
  • 2345 (CL)Turbocharger Speed Invalid Rate of Change Detected - Abnormal Rate of Change
  • 2346Turbocharger Turbine Intake Temperature - Data Valid But Above Normal Operating Range - Least Severe Level
  • 2346 (B)Exhaust Gas Temperature - Data Above Normal
  • 2346 (CL)Turbocharger Turbine Inlet Temperature (Calculated) - Data Valid but Above Normal Operational Range - Least Severe Level
  • 2347Turbocharger Compressor Outlet Temperature (Calculated) - Data Valid But Above Normal Operating Range - Least Severe Level
  • 2347 (B)Turbocharger Compressor Outlet Temperature - Data Above Normal
  • 2347 (CL)Turbocharger Compressor Outlet Air Temperature (Calculated) - Data Valid but Above Normal Range
  • 2348EGR Valve Failed Automatic Calibration Procedure
  • 2349EGR Valve Control Circuit - Current Below Normal or Open Circuit
  • 234 (B)Engine Crankshaft Speed/Position - Data Valid But Above Normal Operating Range - Most Severe Level
  • 234 (BM)Engine Crankshaft Speed/Position - Data Valid but Above Normal Operational Range - Most Severe Level
  • 235Coolant Level - Data Valid but Below Normal Operational Range - Most Severe Level
  • 2351EGR Valve Control Circuit - Voltage Below Normal or Shorted to Low Source
  • 2352EGR Valve Control Circuit - Voltage Above Normal or Shorted to High Source
  • 2353EGR Valve Control Circuit - Current Above Normal or Grounded Circuit
  • 2357EGR Valve Control - Mechanical System Not Responding Properly or Out of Adjustment
  • 2359EGR Differential Pressure Sensor - Data Valid But Above Normal Operating Range - Moderately Severe Level
  • 2362Engine Brake Actuator Circuit #1 - Voltage Below Normal or Shorted to Low Source
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