As an excavator driver, it is inevitable to encounter an excavator running fault. Many errors are small, which will prompt for some error codes on the display. As long as we understand the meaning of these error codes, we can easily resolve these faults ourselves. Compared to looking for a maintenance master to help us check, we understand the code has been greatly shortened our time and economic costs. Therefore, understanding the meaning of the error code plays a very important role in solving the problem of malfunction in the operation of the excavator or maintenance. We will introduce the following models from SK-6E, SK200-2 / -3, SK200-6, SK210-8, SK330-6E, as follows:

Kobelco SK-6E excavator error code

Error code Fault description

A-1 ROM data
　　A-2 A poor adjustment
　　B-1 Boom rise
　　B-2 Big arm drop
　　B-3 Arm extension
　　B-4 Arm recovery
　　B-5 Bucket recycling
　　B-6 Excavation
　　B-7 Right rotation
　　B-9 Walking right
　　B-10 Walking left
　　C-1 P1 pump
　　C-2 P2 pump
　　D-1 P1 neutral cut
　　D-2 P2 neutral cut
　　D-3 Go straight
　　D-4 Small arm variable regeneration
　　D-6 Small arm variable regeneration
　　E-1 P1 pump
　　E-2 P2 pump
　　F-1 Pressurization
　　F-2 Rotary brake
　　F-3 Walking two speed
　　G-1 Step current
　　G-2 Starting indexing
　　G-3 Speed sensor
　　G-4 Water temperature sensor
　　G-5 hydraulics pressure

Kobelco SK200-2/-3 excavator error code

Error code Fault description
A-1 Bad ROM data (no electromechanical A adjustment)
　　A-2 Electromechanical A poorly adjusted
　　A-3 CPU exception
　　B-1 Abnormal arm rise pressure sensor
　　B-2 Abnormal arm pressure sensor abnormal
　　B-3 Arm retracting pressure sensor abnormal
　　B-4 Abnormal arm extension pressure sensor
　　B-5 Bucket retraction pressure sensor abnormal
　　B-6 Bucket extension pressure sensor is abnormal
　　B-7 Swing pressure sensor is abnormal
　　B-9 Right travel pressure sensor is abnormal
　　B-10 Left travel pressure sensor is abnormal
　　C-1 P1 oil pump pressure sensor is abnormal
　　C-2 P2 oil pump pressure sensor is abnormal
　　D-1 P1 Neutral cut-off proportional valve is abnormal
　　D-2 P2 Neutral cut-off proportional valve is abnormal
　　D-3 Straight running proportional valve abnormal
　　D-4 Abnormal confluence proportional valve (only -2 models)
　　D-5 Slow rotary proportional valve abnormal (only -2 models)
　　D-6 Arm variable regenerative proportional valve abnormal (only -3 models)
　　E-1 P1 oil pump proportional valve is abnormal
　　E-2 P2 oil pump proportional valve is abnormal
　　F-1 Booster solenoid valve is abnormal
　　F-2 Rotary brake solenoid valve is abnormal
　　F-3 Travel speed conversion solenoid valve is abnormal
　　F-4 FC mode (micro-operation) solenoid valve abnormality (only -2 models)
　 F-5 Straight line solenoid valve abnormal (only -2 models)
　 G-1 Stepper motor current is abnormal
　 G-2 Stepper motor without starting point indexing
G-5 Engine stall (display E/G reversal)

Kobelco SK200-6 excavator fault code

Error code Fault description
　　A-1 No electromechanical A adjustment
　　A-2 Electromechanical A poorly adjusted
　　B-1 Abnormal pressure sensor on the boom
　　B-2 Abnormal arm pressure sensor abnormal
　　B-3 Arm retracting pressure sensor abnormal
　　B-4 Abnormal arm extension pressure sensor
　　B-5 Bucket retraction pressure sensor abnormal
　　B-6 Bucket extension pressure sensor is abnormal
　　B-7 Right swing pressure sensor is abnormal
　　B-8 Left rotation pressure sensor is abnormal
　　B-9 Right travel pressure sensor is abnormal
　　B-10 Left travel pressure sensor is abnormal
　　B-11 P1 negative pressure sensor is abnormal
　　B-12 P2 negative pressure sensor is abnormal
　　B-15 Back pressure sensor abnormal
　　C-1 P1 oil pump pressure sensor is abnormal
　　C-2 P2 oil pump pressure sensor is abnormal
　　D-1 P1 Neutral cut-off proportional valve is abnormal
　　D-2 P2 Neutral cut-off proportional valve is abnormal
　　D-3 Straight running proportional valve abnormal
　　D-6 Arm variable regenerative proportional valve abnormal
　　E-1 P1 oil pump proportional valve is abnormal
　　E-2 P2 oil pump proportional valve is abnormal
　　F-1 Booster solenoid valve is abnormal
　　F-2 Rotary brake solenoid valve is abnormal
　　F-3 Travel speed conversion solenoid valve is abnormal
　　G-1 Stepper motor current is abnormal
　　G-2 Stepper motor without starting point indexing
　　G-3 Engine speed sensor is abnormal
H-1 Throttle knob abnormal

Kobelco SK210-8 excavator fault code

Error code Fault description
P0617 Alarm is the start switch failure
P0404 The alarm is an EGR card issue alarm
P2635 The alarm is a diesel high pressure pump end common rail solenoid valve failure
P0405 The alarm is that the EGR valve safety sensor is working abnormally

Kobelco SK330-6E excavator fault code

Error code Fault description
　　P0540 Preheater failure (open circuit / CND short circuit)
　　P0540 Preheater failure (+B short circuit)
　　P0617 Start switch circuit failure
　　P0686 Main relay circuit failure
　　P0629 Fuel supply solenoid valve circuit failure (+B short circuit), engine cannot start / engine stop
　　P0628 Fuel pump solenoid valve circuit failure (full output mode), output drop
　　P2635 Fuel pump abnormal pressure history
　　P2635 Fuel pump solenoid stuck
　　P0088 Common rail pressure abnormality, output drop
　　P1211 Injector solenoid valve drive system common rail 1 fault (GND short circuit) , output down / broken cylinder operation (1 time, 4 times)
　　P1214 Injector solenoid valve drive system common rail 2 fault (GND short circuit), output down / broken cylinder operation (2 times, 3 times)
　　P1212 Injector solenoid valve drive system common rail 1 fault (+B short circuit / open circuit), output down / broken cylinder operation (1 time, 4 times)
　　P1215 Injector solenoid valve drive system common rail 2 fault (+B short circuit / open circuit), output down / broken cylinder operation (2 times, 3 times)
　　P1601 Injector multi-point correction abnormality, output drop
　　P0201 Injector 1 solenoid valve circuit open, output down / broken cylinder operation (1 time)
　　P0202 Injector 2 solenoid valve circuit open, output down / broken cylinder operation (2 times)
　　P0203 Injector 3 solenoid valve circuit open, output down / broken cylinder operation (3 times)
　　P0204 Injector 4 solenoid valve circuit open, output down / broken cylinder operation (4 times)
　　P0263 Cylinder correction fault 1
　　P0266 Cylinder correction fault 2
　　P0269 Cylinder correction fault 3
　　P0272 Cylinder correction fault 4
　　P0489 EGR valve linear solenoid valve 1 fault (open circuit / GND short circuit), output drop
　　P0490 EGR valve linear solenoid valve 1 fault (VB short circuit), output drop
　　P0404 EGR valve stuck 1, output decreased
　　P0405 EGR valve safety sensor 1 fault (LO)
　　P0406 Valve Safety Sensor 1 Fault (HI)
　　P0234 Turbo is too large and output is falling
　　P0217 Engine overheating, output drop
　　P0219 Engine coast communication: U1001, CAN communication interruption (vehicle)
　　P0611 ECU charging circuit failure (LO), output drop
　　P0200 Defective ECU charging circuit (HI)
　　P0605 ROM exception
　　P0606 CPU failure, engine cannot start engine stop
　　P0607 CPU monitoring IC is abnormal, output is degraded

The above is the main fault code and description of several models of Kobelco’s excavator. We hope to help you solve some problems encountered in maintenance or operation. If you want to know which Kobelco products you need to troubleshoot your fault code， Please contact us!

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