Komatsu Track Dozer Fault Codes List: E0437 to EA663
Page 11 of 13 of the full Komatsu Track Dozer fault code list (1,253 codes). Each entry is the code as the machine reports it and what the manufacturer data says it means.
Komatsu Track Dozer codes E0437 to EA663
- E0437Abnormality In Right Governor Server
- E0438Abnormality In Left Governor Server
- E0440Disconnection In Solenoid Power Source 1 System
- E0441Disconnection In Solenoid Power Source 2 System
- E0442Abnormality In Engine Controller Backup Power Source System
- E0443Abnormality In Engine Controller Switch Power Source System
- E0455Engine Overheating
- E0456Short Circuit In Right Pre-Stroke Solenoid System
- E0457Disconnection In Right Pre-Stroke Solenoid System
- E0486Abnormally In Selection Of Transmission Controller Specification (Transmission Controller System)
- E0492Abnormality in engine controller specification selection
- E0501Disconnection Or Short Circuit In Acceleration Sensor System (Steering Controller System)
- E0610Disconnection In Back-Up Alarm Relay System (Transmission Controller System)
- E0611Short Circuit In Back-Up Alarm Relay System (Transmission Controller System)
- E0660Disconnection In ACC Signal Drive Relay System (Steering Controller System)
- E0661Short Circuit In ACC Signal Drive Relay System (Steering Controller System)
- E0721Disconnection Or Short Circuit In Pitch Angle Sensor System (Steering Controller System)
- E0730Abnormality In Both Steering Potentiometer Systems (1) (Steering Controller System)
- E0731Abnormality In Both Steering Potentiometer Systems (2) (Steering Controller System)
- E0732Abnormality In Both Steering Potentiometer Systems (3) (Steering Controller System)
- E0733Disconnection Or Short Circuit In Steering Potentiometer 1 System (Steering Controller System)
- E0734Disconnection Or Short Circuit In Steering Potentiometer 2 System (Steering Controller System)
- E0735Deviation Of Steering Potentiometer System Signals (Steering Controller System)
- E0736Disconnection Or Short Circuit In Brake Potentiometer System (Steering Controller System)
- E0750Disconnection In Right Steering Clutch ECMV System (Steering Controller System)
- E0751Short Circuit In Right Steering Clutch ECMV System (Steering Controller System)
- E0752Disconnection In Left Steering Clutch ECMV System (Steering Controller System)
- E0753Short Circuit In Left Steering Clutch ECMV System (Steering Controller System)
- E0754Disconnection In Right Steering Brake ECMV System (Steering Controller System)
- E0755Short Circuit In Right Steering Brake ECMV System (Steering Controller System)
- E0756Disconnection In Left Steering Brake ECMV System (Steering Controller System)
- E0757Short Circuit In Left Steering Brake ECMV System (Steering Controller System)
- E0760Defective Engagement Of Right Steering Clutch (Steering Controller System)
- E0761Defective Disengagement Of Right Steering Clutch (Steering Controller System)
- E0762Defective Engagement Of Left Steering Clutch (Steering Controller System)
- E0763Defective Disengagement Of Left Steering Clutch (Steering Controller System)
- E0764Defective Engagement Of Right Steering Brake (Steering Controller System)
- E0765Defective Disengagement Of Right Steering Brake (Steering Controller System)
- E0766Defective Engagement Of Left Steering Brake (Steering Controller System)
- E0767Defective Disengagement Of Left Steering Brake (Steering Controller System)
- E0779Disconnection In Sudden Stop Prevention Solenoid System (Steering Controller System)
- E0780Short Circuit In Sudden Stop Prevention Solenoid System (Steering Controller System)
- E0781Disconnection Or Short Circuit In Parking Brake Lever Switch Systems (Steering Controller System)
- E0782Disagreement Of Parking Brake Lever Switch System Signals (Steering Controller System)
- E0930Disconnection In Engine Speed Sensor System (Steering Controller System)
- E0931Disconnection In Engine Speed Sensor System (Transmission Controller System)
- E0932Disconnection In Transmission Speed Sensor System (Transmission Controller System)
- E0933Disconnection In Transmission Speed Sensor System (Steering Controller System)
- E-1Engine Does Not Start (Starting Motor Does Not Turn)
- E-12Hydraulic Oil Temperature Monitor Lights Up In Red While Engine Is Running
- E-13HST Oil Filter Clogging Monitor Lights Up In Red While Engine Is Running
- E-14Fuel Level Gauge Does Not Indicate Correct Level
- E-16Hydraulic Oil Temperature Gauge Does Not Indicate Correct Temperature
- E-17Customize Memory Function Does Not Operate Normally
- E-18Alarm Buzzer Does Not Sound Or Does Not Stop
- E-19When Starting Switch Is Turned OFF, Service Meter Is Not Displayed
- E1939Abnormality In J1939 Communication System (Steering Controller System)
- E-2Manual Preheating System Does Not Work
- E-20Modifying Setting On Customize Screen Does Not Change Setting Of Machine
- E-21Service Meter Is Not Displayed While Starting Switch Is In OFF Position
- E-22Horn Does Not Sound Or Does Not Stop
- E-23Back-Up Alarm Does Not Sound Or Does Not Stop
- E-24Fan Does Not Reverse
- E-25The Head Lamp And Rear Lamp Do Not Light Up
- E-26Windshield Wiper Does Not Operate
- E-27Backup Alarm Does Not Stop Sounding
- E-28Electric Priming Pump Does Not Operate Or Does Not Stop Automatically
- E-29ORBCOMM Terminal Does Not Operate Normally (Data Is Not Transmitted)
- E-3Heater Signal is Not Heated Red, or The Heater Does Not Become Hot Even if The Heater Signal is Heated Red
- E-30No Wiper Operates Continuously Or Intermittently
- E-31Front Wiper Does Not Operate
- E-32Rear Wiper Does Not Operate
- E-33Left Door Wiper Does Not Operate In Continuous And Intermittent Operations
- E-34Right Door Wiper Does Not Operate In Continuous And Intermittent Operations
- E-35Front Washer Does Not Operate
- E-36Rear Washer Does Not Operate
- E-37Left Door Washer Does Not Operate
- E-38Right Door Washer Does Not Operate
- E-39KOMTRAX System Does Not Operate Normally
- E-4When Starting Switch Is Turned ON (Before Starting Engine), Basic Check Item Lights Up
- E-5When Starting Switch Is Turned To ON Position, Machine Monitor Displays Nothing
- E-6When Starting Switch Is Turned To ON Position (With Engine Stopped), Basic Check Monitor Lights Up
- E-7Air Cleaner Clogging Monitor Lights Up In Yellow While Engine Is Running
- E-8Charge Level Monitor Lights Up In Red While Engine Is Running
- E-9Engine Coolant Temperature Monitor Lights Up In Red While Engine Is Running
- EA116Abnormality In Radio Controller Power Supply System (Radio Controller System)
- EA144Abnormality In Radio Controller 5 V Power Supply System
- EA147Abnormality In Radio Controller 24 V Power Supply System
- EA155Abnormality In Radio Controller Specification Selection
- EA156Abnormality In Network (S-NET, Radio Controller)
- EA157Abnormality In Radio Controller CAN Communication
- EA166Abnormality In Radio Controller ROM
- EA181Disconnection In Solenoid Cutout Relay System
- EA182Short Circuit In Solenoid Cutout Relay System
- EA656Disconnection In PPC Pressure Selector Solenoid System
- EA657Short Circuit In PPC Pressure Selector Solenoid System
- EA660Disconnection In Engine Stop Relay System
- EA661Short Circuit In Engine Stop Relay System
- EA662Disconnection In Yellow Beacon Lamp Relay System
- EA663Short Circuit In Yellow Beacon Lamp Relay System
Other Komatsu machine types
Fault code lists by brand
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- Challenger Rubber Track Tractor1,747 codes
- Volvo Wheel Loader1,726 codes
Safety-critical: confirm before use
Safety first: park on level ground, stop the engine, and secure the machine before any inspection. Thresholds, component locations, wire numbers, fuse locations, and reset procedures can vary by model, configuration, and serial number. Confirm them in the service documentation for your exact machine.