Komatsu Track Dozer Fault Codes List: CA757 to DAQ0KK
Page 4 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 CA757 to DAQ0KK
- CA757Loss of All Engine Controller Data: Loss of All Data (Engine Controller System)
- CA778Abnormal engine Bkup speed sensor: Abnormal Bkup signal (Engine controller system)
- CA781Inter-Multicontroller Communication Error (Left Bank): Communication Error
- CB111Engine Controller (Right Bank): Internal Abnormality
- CB115Abnormal Engine Ne And Bkup Speed Sensors (At Right Bank): Abnormal Speed Sensor Signal
- CB1257Multicontroller Distinction Wiring Harness Key Error (Right Bank): Distinction Error
- CB1548Injector #7 (R/B #1) System Disconnection/Short Circuit (Right Bank): Disconnection/Short Circuit
- CB1549Injector #8 (R/B #2) System Disconnection/Short Circuit (Right Bank): Disconnection/Short Circuit
- CB1551Injector #10 (R/B #4) System Disconnection/Short Circuit (Right Bank): Disconnection/Short Circuit
- CB1552Injector #11 (R/B #5) System Disconnection/Short Circuit (Right Bank): Disconnection/Short Circuit
- CB1553Injector #12 (R/B #6) System Disconnection/Short Circuit (Right Bank): Disconnection/Short Circuit
- CB1622Injector #9 (R/B #3) System Disconnection/Short Circuit (Right Bank): Disconnection/Short Circuit
- CB187Sensor Power Supply (2) Abnormally Low Level (Right Bank): Low Voltage Detection
- CB2249Loss Of Pressure Feed From Supply Pump (2) (At Right Bank): Loss Of Pressure Feed Detected
- CB227Sensor Power Supply (2) Abnormally High Level (Right Bank): High Voltage Detection
- CB238Abnormal Power Source For Ne Speed Sensor (At Right Bank Only): Excessively Low Voltage Detected
- CB263Fuel Temperature Sensor Too High (At Right Bank): Excessively High Voltage Detected
- CB265Fuel Temperature Sensor Abnormally Low Level (Right Bank): Low Voltage Detection
- CB271PCV1 Short Circuit (Right Bank): Short Circuit
- CB272PCV1 Disconnection (Right Bank): Disconnection
- CB273PCV2 Short Circuit (Right Bank): Short Circuit
- CB274PCV2 Disconnection (Right Bank): Disconnection
- CB342Engine Controller Data Mismatch (Right Bank): Mismatch
- CB351Injector Drive Circuit Abnormality (Right Bank): Circuit Abnormality
- CB352Sensor Power Supply (1) Abnormally Low Level (Right Bank): Low Voltage Detection
- CB386Sensor Power Supply (1) Abnormally High Level (Right Bank): High Voltage Detection
- CB441Power Supply Voltage Abnormally Low Level (Right Bank): Low Voltage Detection
- CB442Power Supply Voltage Abnormally High Level (Right Bank): High Voltage Detection
- CB449Common Rail Abnormally High Pressure (2) (Right Bank): Abnormally High Pressure Occurrence
- CB451Common Rail Pressure Sensor Abnormally High Level (Right Bank): High Voltage Detection
- CB452Common Rail Pressure Sensor Abnormally Low Level (Right Bank): Abnormally Low Voltage Detection
- CB553Common Rail Pressure Too High (1) (At Right Bank): Excessively High Pressure Detected
- CB554In-Range Error In Common Rail Pressure Sensor (At Right Bank): In-Range Error
- CB559Loss Of Pressure Feed From Supply Pump (1) (At Right Bank): Loss Of Pressure Feed Detected
- CB689Abnormal Engine Ne Speed Sensor (At Right Bank): Abnormal Signal
- CB731Abnormal Engine Bkup Speed Sensor Phase (At Right Bank): Abnormal Phase
- CB757Loss Of aAll Engine Controller Data (At Right Bank): Loss Of All Data
- CB778Engine Bkup Speed Sensor Abnormality (Right Bank): Bkup Signal Error
- CB781Inter-Multicontroller Communication Error (Right Bank): Communication Error
- D110KABattery Relay: Disconnection (Steering and Teering and Transmission Controller System)
- D110KBBattery Relay: Disconnection (KB) (Steering and Transmission Controller System)
- D130ANeutral Safety Relay Disconnection
- D130KANeutral Safety Relay: Short Circuit (KA) (Steering and Transmission Controller System)
- D130KBNeutral Safety Relay: Disconnection (KB) (Steering and Transmission Controller System)
- D130KYNeutral Relay: Hot Short
- D161KABack-Up Alarm Relay: Short Circuit (KA) (Steering and Transmission Controller System)
- D161KBBack-Up Alarm Relay: Disconnection (KB) (Steering and Transmission Controller System)
- D182KZPreheater Relay Coil: Disconnection or Short Circuit (Steering and Transmission Controller System)
- D190KAEngine Controller ACC Signal Cutout Relay: Disconnection
- D190KBEngine Controller ACC Signal Cutout Relay: Short Circuit
- D19DKAYellow Revolving Warning Lamp Relay Open Circuit (Power Train Controller System)
- D19DKBShort Circuit In Yellow Revolving Warning Lamp Relay (Power Train Controller System)
- D19JKZPersonal Code Relay Defective (Machine Monitor System)
- D1D0KAGovernor Cutout Relay Right: Disconnection
- D1D0KBEngine Controller Load Power Supply Relay: Short Circuit (KB) (Engine Controller System)
- D1D1KAGovernor Cutout Relay Left: Disconnection
- D1D1KBGovernor Cutout Relay Left: Short Circuit
- D1EFKAPre-Lubricating Motor Relay: Disconnection
- D1EFKBPre-Lubricating Motor Relay: Short Circuit
- D5FZKBTransmission Neutral Signal: Short Circuit (KB) (Steering and Transmission Controller System)
- D5ZFKATransmission Neutral Signal: Disconnection (KA) (Steering and Transmission Controller System)
- D5ZFKBTransmission Neutral Signal: Short Circuit (Steering and Transmission Controller System)
- D5ZFL4Engine Controller Neutral Signal: ON and OFF Signals Do Not Agree
- D5ZGKANeutral Signal 2: Disconnection
- D5ZGKBNeutral Signal 2: Short Circuit
- D5ZKKXChassis Throttle Signal: Out Of Input Signal Range
- D5ZRKASnap Shot Switch: Disconnection
- D5ZRKBSnap Shot Switch: Short Circuit
- D811KRKOMTRAX Controller CAN Communication: Defective Communication
- D811MCKOMTRAX Error (KOMTRAX System)
- D862KAGPS Antenna Open Circuit (KOMTRAX System)
- D8ALKAOperating Lamp Open Circuit (KOMTRAX System)
- D8ALKBOperating Lamp Short Circuit (KOMTRAX System)
- D8AQKRCAN2 Disconnection (KOMTRAX) (Detected By Machine Monitor) (Machine Monitor System)
- DA13KBShift Down Switch: Short Circuit
- DAF0MBMonitor ROM Abnormality (Machine Monitor System)
- DAF0MCMonitor Error (Machine Monitor System)
- DAF8KBCamera Power Supply Short Circuit (Machine Monitor System)
- DAF9KQDefective Model Selection (Machine Monitor System)
- DAFGMCGPS Module Error (KOMTRAX System In Machine Monitor)
- DAFLKAOperating Lamp Open Circuit (Machine Monitor System)
- DAFLKBOperating Lamp Short Circuit (Machine Monitor System)
- DAFQKRCAN2 Disconnection (KOMTRAX) (KOMTRAX System)
- DAFRKRCAN Communication (Monitor Panel – HST Controller): Defective Communication (Abnormality in Objective Component System)
- DAFRMCCAN Communication (Monitor Panel – ENGINE Controller): Defective Communication (Abnormality in Objective Component System)
- DAJ000HST Controller: Abnormality In Controller
- DAJ0KKHST Controller Lowering of Source Voltage
- DAJ0KQHST Controller: Type Select Signal
- DAJ0KTHST Controller: Abnormality In Controller
- DAJ0MCHST Controller Error
- DAJ1KKHST Controller: Source Voltage Low
- DAJ2KKHST Controller: Output Voltage Low
- DAJ5KKHST Controller Sensor 5 V Power Supply No.1: Lowing of Source Voltage/Input
- DAJ6KKHST Controller Sensor 5 V Power Supply No.2: Lowing of Source Voltage/Input
- DAJLKAOpen Circuit Of System Operating Lamp (HST Controller)
- DAJLKBOperating Lamp Short Circuit (HST Controller)
- DAJPMAInconsistency Of Option Selection (HST Controller)
- DAJQKRCAN2 Disconnection (HST Controller)
- DAJRKRCAN Communication (HST Controller – Monitor Panel): Defective Communication (Abnormality in Objective Component System)
- DAQ0KKSteering and Transmission Controller: Source Voltage Reduction/Input (KK) (Steering and Transmission Controller System)
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.