Komatsu Track Dozer Fault Codes List: DAQ0KT to DDDDKB
Page 5 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 DAQ0KT to DDDDKB
- DAQ0KTSteering and Transmission Controller: Abnormality in Controller (KT) (Steering and Transmission Controller System)
- DAQ1KKMain power supply of steering and transmission controller: Power source voltage drop and input
- DAQ2KKLoad power source of steering and transmission controller: Power source voltage drop and input (Steering and transmission controller system)
- DAQ5KKSteering and transmission controller sensor 5 V power source: Power source voltage drop and input (Steering and transmission controller system)
- DAQ6KKSteering and transmission controller sensor 24 V power source: Power source voltage drop and input (Steering and transmission controller system)
- DAQ7KKSteering and Transmission Controller Sensor 5 V Power Source (2): Power Source Voltage Drop and Input
- DAQ9KQSteering and transmission controller model selection: Inconsistency in model select signal (Steering and transmission controller system)
- DAQRKRTransmission Controller CAN Communication: Defective Communication (Abnormality in Objective Component System) (KR) (Transmission Controller System)
- DAQSKRTransmission Controller SNET Communication: Defective Communication (Abnormality In Objective Component System) (KR) (Transmission Controller System)
- DAZ9KQAir Conditioner Model Selection Mismatch (Machine Monitor System)
- DAZQKRCAN2 Disconnection (Air Conditioner ECU) (Detected By Machine Monitor) (Machine Monitor System)
- DB20KQMalfunction of Engine Controller Machine Model Collection: Disagreement of Model Selection Signals.
- DB20KTEngine Controller: Abnormality In Controller (KT) (Engine Controller System)
- DB22KKEngine Controller Load Power Supply: Source Voltage Reduction (Input) (KK) (Engine Controller System)
- DB29KQEngine Controller Type Select: Type Select Signal Inconsistency (KQ) (Engine Controller System)
- DB2AMAFuel Injection Amount Adjustment Switch Signal: Malfunction (MA) (Engine Controller System)
- DB2QKRCAN2 Disconnection (Engine Controller) (Detected By Machine Monitor) (Machine Monitor System)
- DB2RKREngine Controller CAN Communication: Defective Communication (Abnormality in Objective Component System) (KR) (Transmission Controller and Realer System)
- DB2RMCSteering and Transmission Controller CAN Communication: Defective Communication (Steering and Transmission Controller System)
- DB30KKSteering and Transmission Controller: Source Voltage Reduction/Input (KK) (Steering and Transmission Controller System)
- DB30KTSteering and transmission controller: Abnormality in controller (Steering and transmission controller system)
- DB31KKMain power supply of steering and transmission controller: Power source voltage drop and input
- DB32KKLoad power source of steering and transmission controller: Power source voltage drop and input (Steering and transmission controller system)
- DB35KKSteering and transmission controller sensor 5 V power source: Power source voltage drop and input (Steering and transmission controller system)
- DB36KKSteering and transmission controller sensor 24 V power source: Power source voltage drop and input (Steering and transmission controller system)
- DB37KKSteering and Transmission Controller Sensor 5 V Power Source (2): Power Source Voltage Drop and Input
- DB39KQSteering and transmission controller model selection: Inconsistency in model select signal (Steering and transmission controller system)
- DB3RKRSteering Controller CAN Communication: Defective Communication (Abnormality in Objective Component System) (KR) (Steering Controller System)
- DB3SKRSteering Controller SNET Communication: Defective Communication (Abnormality in Objective Component System) (KR) (Steering Controller System)
- DB40KKEngine Controller: Lowering Of Source Voltage
- DB41KKSwitch power supply: Lowering of Source Voltage
- DB42KKSolenoid Power Supply 1: Lowering Of Source Voltage
- DB43KKBackup Power Supply: Lowering Of Source Voltage
- DB44KKSolenoid Power Supply 2: Lowering Of Source Voltage
- DB45KPRack Sensor Power Supply: Lowering Of Output Voltage
- DB49KMWrong Connection Of Connector: Mistake In Operation Or Setting
- DB49KQEngine Controller Specification: Disagreement Of Model Selection Signals
- DB90KKWE controller: Source voltage reduction
- DB90KRPT controller: Can communication lost
- DB90KTWork Equipment Controller: Abnormality In Controller
- DB90MCWE Con Error
- DB91KKWork Equipment Controller: Source Voltage Reduction
- DB92KKWork Equipment Controller: Output Voltage Reduction
- DB95KKWE: Sensor Volt 5 V (0) Out of Normal Range
- DB97KKWork Equipment Controller: Sensor Voltage 5 V (2) Reduction
- DB99KQWork Equipment Controller: Type Select Signal
- DB9LKAOperating Lamp Open Circuit(WE Con)
- DB9LKBOperating Lamp Short Circuit(WE Con)
- DB9QKRCAN2 Discon (WE Con)
- DB9RKRWork Equipment Controller: CAN Communication Lost (PT)
- DBB0KK(Or LED Of VHMS Controller Indicates "N9" o "01") VHMS Controller: Lowering Of Source Voltage
- DBB0KQ(Or LED Of VHMS Controller Indicates "nF" o "11") Check Of VHMS Controller Model: Disagreement Of Model Selection
- DBB3KK(Or LED Of VHMS Controller Indicates "N9" o "05") VHMS Controller: Lowering Of Direct Source Voltage
- DBB5KP(Or LED Of VHMS Controller Indicates "N9" o "04") VHMS Sensor Power Supply (5 V): Lowering Of Output Voltage
- DBB6KP(Or LED Of VHMS Controller Indicates "N9" o "02") VHMS Sensor Power Supply (24 V): Lowering Of Output Voltage
- DBB7KP(Or LED Of VHMS Controller Indicates "N9" o "03") VHMS Sensor Power Supply (12 V): Lowering Of Output Voltage
- DBBQKR(Or VHMS_LED Display "N8" o "02") VHMS KOM-NET: Communication Error
- dbBRKRVHMS Controller CAN Communication: Communication Error
- DBE0KKPT controller: Source voltage reduction
- DBE0KTDefective Power Train Controller Memory Value (Power Train Controller System)
- DBE1KKPower Train Controller : Source Voltage Low (Power Train Controller system)
- DBE2KKVoltage Drop In Power Supply For Load On Power Train Controller (Power Train Controller System)
- DBE5KKPower Train Controller Sensor Voltage 5V (0) Out Of Normal Range (Power Train Controller System)
- DBE6KKOut Of 24 V Power Supply Output Voltage Range For Power Train Controller Sensor (Power Train Controller System)
- DBE7KKPower Train Controller Sensor Voltage 5V (1) Out Of Normal Brange (Power Train Controller System)
- DBE9KQFailure Of Model Selection In Power Train Controller
- DBELKAOperating Lamp Open Circuit (Power Train Controller System)
- DBELKBShort Circuit In System Operating Lamp (Power Train Controller System)
- DBEQKRCAN2 Disconnection (Power Train Controller) (Detected By Machine Monitor) (Machine Monitor System)
- DBERKRCAN1 Disconnection (Power Train Controller) (Detected By Machine Monitor) (Machine Monitor System)
- DBR0KTICT Controller Abnormality in Controller
- DBR0MCICT Controller Error
- DBR1KKICT controller: Source Voltage Low
- DBR5KKICT: Sensor Voltage 5 V (0) Out of Normal Range
- DBRLKAOperating Lamp Open Circuit (ICT Controller)
- DBRLKBOperating Lamp Short Circuit (ICT Controller)
- DBRPMAInconsistency of Option Selection (ICT)
- DBRQKRCAN2 Disconnection (ICT Controller)
- DBRRKRCAN1 Disconnection (ICT Sensor Controller)
- DBTSKRLAN Disconnection (iB monitor)
- DBUTKAGNSS Antenna Open Circuit
- DD11KBStarting Switch: Short Circuit (KB) (Engine Controller System)
- DD12KAShift Up Switch: Disconnection (KA) (Steering and Transmission Controller System)
- DD12KBShift Up Switch: Short Circuit (KB) (Steering and Transmission Controller System)
- DD13KAShift Down Switch: Disconnection (KA) (Steering and Transmission Controller System)
- DD13KBShift Down Switch: Short Circuit (KB) (Steering and Transmission Controller System)
- DD14KAParking brake lever switch: Disconnection (Steering and transmission controller system)
- DD14KBParking brake lever switch: Short circuit (Steering and transmission controller system)
- DD1NL4Fan Rotation Selector Switch: Disagreement of ON, OFF Signals
- DD59KADisconnection in Blade Dual Selector Solenoid System
- DD59KBShort Circuit in Blade Dual Selector Solenoid System
- DD5AKADisconnection in Blade Pitch Selector Solenoid System
- DD5AKBShort Circuit in Blade Pitch Selector Solenoid System
- DDB9KAReverse Switch:Disconnection
- DDB9KBReverse Switch:Short Circuit
- DDB9L4Reverse Switch: Signal Disagreement
- DDB9LAReverse Switch Disagreement
- DDDCKBReverse Travel Speed Switch: Short Circuit
- DDDDKABack up brake Sw: Disconnection
- DDDDKBBack up brake Sw: Short circuit
Other Komatsu machine types
Fault code lists by brand
- CAT8,286 codes
- Volvo6,508 codes
- New Holland Tractor3,475 codes
- FPT3,033 codes
- Case IH2,992 codes
- Bobcat2,653 codes
- Challenger Tractor2,434 codes
- New Holland Combine2,274 codes
- John Deere Tractors1,884 codes
- Case Wheel Loader1,859 codes
- John Deere Engines1,853 codes
- Cummins1,847 codes
- 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.