Komatsu Engines Fault Codes List: CB1549 to E0492
Page 11 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 CB1549 to E0492
- CB1549Disconnection Or Short Circuit In Injector #8 (R/B #2) System (RH bank)
- CB1551Disconnection Or Short Circuit In Injector #10 (R/B #4) System (RH bank)
- CB1552Disconnection Or Short Circuit In Injector #11 (R/B #5) System (RH bank)
- CB1553Disconnection Or Short Circuit In Injector #12 (R/B #6) System (RH bank)
- CB1622Disconnection Or Short Circuit In Injector #9 (R/B #3) System (RH bank)
- CB187Power Supply 2 Sensor Detection Of Abnormally Low Voltage (RH bank)
- CB2249Supply Pump No-Pressure Feed Error 2 (RH bank)
- CB227Power Supply 2 Sensor Detection Of Abnormally High Voltage (RH bank)
- CB238Ne Speed Sensor Sup. Volt. Error (RH bank)
- CB263Fuel Temperature Sensor Detection Of Abnormally High Temperature (RH bank only)
- CB265Fuel Temperature Sensor Detection Of Abnormally Low Temperature (RH bank)
- CB271PCV1 Short Circuit Error (RH bank)
- CB272PCV1 Disconnection Error (RH bank)
- CB273PCV2 Short Circuit Error (RH bank)
- CB274PCV2 Disconnection Error (RH bank)
- CB342Engine Controller Data Matching Failure (RH bank)
- CB351Injector Drive Circuit Error (RH bank)
- CB352Power Supply 1 Sensor Detection Of Abnormally Low Voltage (RH bank)
- CB386Power Supply 1 Sensor Detection Of Abnormally High Voltage (RH bank)
- CB441Supply Voltage Abnormally Low (RH bank)
- CB442Supply Voltage Abnormally High (RH bank)
- CB449Common Rail Pressure Abnormally High Error 2 (RH bank)
- CB451Common Rail Pressure Sensor Detected Abnormally High Pressure (RH bank)
- CB452Common Rail Pressure Sensor Detected Abnormally Low Pressure (RH bank)
- CB553Common Rail Pressure Abnormally High Error 1 (RH bank)
- CB554Common Rail Pressure Sensor Detected In Range Abnormality (RH bank)
- CB559Supply Pump No-Pressure Feed Error 1 (RH bank)
- CB689Engine Ne Speed Sensor Detected Abnormality (RH bank)
- CB731Engine G (Bkup) Speed Sensor Abnormal Phase (RH bank)
- CB757All Engine Controller Data Lost Error (RH bank)
- CB778Engine G (Bkup) Speed Sensor Abnormal (RH bank)
- CB781Inter Multi-Controller Communication Error (RH bank)
- E0272Abnormality In Neutral Signal System
- E0401Abnormality In Engine Controller Power Source Voltage
- E0403Mistaken Connection In Engine Controller
- E0405Abnormality In Fuel Control Dial System
- E0406Abnormality In Deceleration Potentiometer System
- E0407Abnormality In Shoe Slip Control Command Value
- E0409Abnormality In Engine Speed Sensor A System
- E0410Abnormality In Engine Speed Sensor B System
- E0411Abnormality In Right Rack Sensor System
- E0412Abnormality In Left Rack Sensor System
- E0413Abnormality In Rack Sensor Power Source System
- E0421Short Circuit In Right Governor Solenoid System
- E0422Disconnection In Right Governor Solenoid System
- E0423Short Circuit In Left Governor Solenoid System
- E0424Disconnection In Left Governor Solenoid System
- E0425Short Circuit In Right Governor Cut Relay System
- E0426Disconnection In Right Governor Cut Relay System
- E0427Short Circuit In Left Governor Cut Relay System
- E0428Disconnection In Left Governor Cut Relay System
- E0433Short Circuit In Left Pre-Stroke Solenoid System
- E0434Disconnection In Left Pre-Stroke Solenoid System
- E0435Abnormality In Engine Water Temperature Sensor System
- E0437Abnormality In Right Governor Servo
- E0438Abnormality In Left Governor Servo
- 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
- E0492Abnormality In Engine Controller Specification Selection
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.