Komatsu Dump Truck Fault Codes List: DB2QKR to DHQ2KX
Page 8 of 12 of the full Komatsu Dump Truck fault code list (1,115 codes). Each entry is the code as the machine reports it and what the manufacturer data says it means.
Komatsu Dump Truck codes DB2QKR to DHQ2KX
- DB2QKRCAN2 Disconnection (Engine Controller)
- DB2SKREngine Controller S-NET: Defective Communication, Abnormality in Corresponding Component System (KR)
- DBB0KKVHMS Controller: Low Power Supply Voltage (Input)
- DBB0KQVHMS Controller: Disagreement of Model Selection Signals
- DBB3KKVHMS Controller Battery Power Supply: Low Power Supply Voltage (Input)
- DBB5KKVHMS Controller 5 V Power Supply Output: Low Output Voltage
- DBB5KPVHMS Controller 5 V Power Supply Output: Low Output Voltage
- DBB6KPVHMS Controller 24 V Power Supply Output: Low Output Voltage
- DBB7KKVHMS Controller 12 V Power Supply Output: Low Output Voltage
- DBB7KPVHMS Controller 12 V Power Supply Output: Low Output Voltage
- DBBQKRVHMS Controller CAN Communication: Defective Communication (Abnormality in Target Component System)
- DBBRKRFailure Code [DBBRKR] Abnormality in CAN Communication (VHMS)
- DBC0KTAbnormality of Non-volatile Memory
- DBC2KKABS Controller Solenoid Power Supply: Power Supply System Trouble
- DBC3KKABS controller battery direct power source: Power Supply Voltage Too Low
- DBC9KQDisagreement of Model Selection (ABS Controller)
- DBCRKRAbnormality in CAN Communication (ABS)
- DBCRMADisagreement of Option Setting (ABS Controller)
- DBG2KKSolenoid Power Supply: Low Voltage
- DBG3KKBattery Direct Power Supply: Low Voltage
- DBG9KQModel Selection Signal: Abnormal
- DBSQKQInconsistency of Model Selection (PLM)
- DBSQKRCAN2 Discon (PLM)
- DD11KBStarting Switch: Short Circuit (KB)
- DD1ML4Disagreement Of Accelerator-Linked Retarder Switch Signal (Transmission Controller System)
- DDA1L5Acceleration Switch: * See Contents (L5)
- DDAAL6Disconnection of Engine Shutdown Secondary Switch
- DDB4MABrake Sensor: Open or Short Circuit
- DDD7KXTrouble in Travel Speed Setting Switch System: Out of Input Signal Range (If Equipped) (When ARSC is Set and ARSC System Switch is ON)
- DDD8KAARSC System Switch System: Disconnection (When ARSC is Set and ARSC System Switch is ON)
- DDD8KBARSC System Switch System: Short Circuit (When ARSC is Set and ARSC System Switch is ON)
- DDD9KAABS System Switch System: Disconnection (When ABS is Set and ABS System Switch is ON)
- DDD9KBABS System Switch System: Short Circuit (When ABS is Set and ABS System Switch is ON)
- DDDAKAASR System Switch: Disconnection (If Equipped)
- DDDAKBASR System Switch System: Short Circuit
- DDDGL4Failure of Ladder Manual Operation Switch CH1 (Inside Cab) System
- DDDHL4Failure of Ladder Manual Operation Switch CH2 (Outside Cab) System
- DDE2KBEngine Oil Pressure Switch Error: Grounding Fault
- DDE2L6Engine Oil Pressure Switch Error: Disconnection Or Hot Short Circuit
- DDP6L4Service Brake Pressure Switch Trouble (Rear)
- DDP6MABrake Switch: Open or Short Circuit
- DDTFKAFill Switch for Inter-Axle Differential Lock Clutch: Open (KA)
- DDTGKAFill Switch for Lock-up Clutch: Open (KA)
- DDTHKAFill Switch For Hi Clutch: Disconnection (Specified Holding Pressure, Fill Switch OFF, No Slip) (Transmission Controller System)
- DDTJKAFill Switch For Lo Clutch : Disconnection (Specified Holding Pressure, Fill Switch OFF, No Slip) (Transmission Controller System)
- DDTKKAFill Switch For 1st Clutch: Disconnection (Specified Holding Pressure, Fill Switch OFF, No Slip) (Transmission Controller System)
- DDTKLKATrouble in 2nd Clutch Flow Sensor Valve
- DDTLKAFill Switch For 2nd Clutch: Disconnection (Specified Holding Pressure, Fill Switch OFF, No Slip) (Transmission Controller System)
- DDTMKAFill Switch For 3rd Clutch: Disconnection (Specified Holding Pressure, Fill Switch OFF, No Slip) (Transmission Controller System)
- DDTNKAFill Switch Fr R Clutch: Disconnection (Specified Holding Pressure, Fill Switch OFF, No Slip) (Transmission Controller System)
- DDTPKA4th Clutch Fill Switch : Disconnection (Command is Holding Pressure, Fill Switch is OFF, and Slip is Not Sensed)
- DDTRKAMiddle Clutch Fill Switch Circuit: Open Circuit
- DDU1KAOpen Circuit in Parking Brake Operation Input Circuit
- DF10KAGear Shift Lever: Disconnection (Transmission Controller System)
- DF10KBGear Shift Lever: Short Circuit (Input of Multiple Lever Signach)
- DGE2KXEngine Coolant Temperature Sensor (For High Temperature): Input Signal Outside Range (KX)
- DGE3L6Engine Coolant Temperature Sensor (For Low-Temperature): * See Contents (L6)
- DGE3LCFailure Code [DGE3LC] (Engine Coolant Temperature Sensor (Low-Temperature): * See Contents (L6))
- DGE4KXFuel Temperature Sensor: Input Signal Outside Range (KX)
- DGE5KXAtmospheric Temperature Sensor: Out of Input Signal Range
- DGF1KXTransmission Oil Temperature Sensor : Input Signal Out Of Range (Transmission Controller System)
- DGR2KBTrouble In Retarder Oil Temperature Sensor (Rear Wheel) System (Disconnection And Short Circuit)
- DGR2KZTrouble In Retarder Oil Temperature Sensor (Rear Wheel) System (Ground Fault)
- DGR2L8Disconnection In Brake Oil Temperature Sensor (Rear) (Machine Monitor System)
- DGR3KBRetarder Oil Temperature Sensor (Left Rear): Short to Ground
- DGR3KZCenter Brake Oil Tmperature Sensor: Disconnection Or Short Circuit (Machine Monitor System)
- DGR3L8Center Brake Oil Temperature Sensor: Inconsistent Analog Signals (Machine Monitor System)
- DGR4KBTrouble In Retarder Oil Temperature Sensor (Front Wheel) System (Disconnection And Short Circuit)
- DGR4KZFront Brake Oil Temperature Sensor: Disconnection Or Short Circuit (Machine Monitor System)
- DGR4L8Front Brake Oil Temperature Sensor System: Inconsistent Analog Signals (Machine Monitor System)
- DGR6KBGround Fault of Steering Oil Temperature Sensor
- DGR6KXSteering Oil Temperature Sensor: Input Signal Out Of Range (Transmission Controller System)
- DGR6L8Failure of Steering Oil Temperature Sensor
- DGR7KXOut of Range of Piston Pump Oil Temperature Sensor
- DGT1KXTorque Converter Oil Temperature Sensor: Input Signal Out Of Range (Transmission Controller System)
- DGT4KAExhaust Gas Temperature Sensor (F): Disconnection
- DGT4KBExhaust Gas Temperature Sensor (F): Short Circuit
- DGT5KALeft Bank Exhaust Temperature Sensor System (Front): Disconnection
- DGT5KBLeft Bank Exhaust Temperature Sensor System (Front): Short Circuit
- DGT6KARight Bank Exhaust Temperature Sensor System (Front): Disconnection
- DGT6KBRight Bank Exhaust Temperature Sensor System (Front): Short Circuit
- DH30KXBoost Pressure Sensor: Input Signal Outside Range (KX)
- DH40KXCommon Rail Pressure Sensor: Input Signal Outside Range (KX)
- DHE5KBBlow-By Pressure Sensor: Short Circuit
- DHE5KYBlow-By Pressure Sensor: Short Circuit With Power Supply Line
- DhP4KXFailure In Suspension Pressure Sensor System Trouble: Out of Input Signal Range
- DHP4KYShort Circuit in Suspension Pressure Sensor System (Front Right)
- DHP4KZDisconnection or Ground Fault in Suspension Pressure Sensor System (Front Right)
- dHP5KXFailure in Suspension Pressure Sensor System Trouble: Out of Input Signal Range
- DHP5KYShort Circuit in Suspension Pressure Sensor System (Front Left)
- DHP5KZDisconnection or Ground Fault in Suspension Pressure Sensor System (Front Left)
- DHP6KASuspension Pressure Sensor System (Rear Right): Disconnection
- DHP6KXFailure in Suspension Pressure Sensor System Trouble (Rear Right): Out of Input Signal Range (When ARSC is Not Set or ARSC System Switch is "OFF")
- DHP6KYSuspension Pressure Sensor System: Short Circuit (Right Rear)
- DHP6KZSuspension Pressure Sensor System: Disconnection or Ground Fault (Right Rear)
- DHP7KASuspension Pressure Sensor System (Rear Left): Disconnection
- DHP7KXFailure in Suspension Pressure Sensor System Trouble (Rear Left): Out of Input Signal Range (When ARSC is Not Set or ARSC System Switch is "OFF")
- DHP7KYSuspension Pressure Sensor System: Short Circuit (Left Rear)
- DHP7KZSuspension Pressure Sensor System: Disconnection or Ground Fault (Left Rear)
- DHQ2KXOut of Range of Main Flow Selector Valve Sensor
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.