11100-2 engine speed is abnormal
11101-3 engine speed control knob sensor high pressure abnormal
11101-4 Engine speed control knob sensor low pressure abnormality
11200-3 Pump 1 oil pressure sensor high pressure abnormal
11200-4 Pump 1 Oil pressure sensor low pressure abnormality
11202-3 Pump 2 Oil pressure sensor high pressure abnormal
11202-4 Pump 2 Oil pressure sensor low pressure abnormality
11206-3 Pump 1 pump control pressure sensor high pressure abnormal
11206-4 Pump 1 pump control pressure sensor low pressure abnormality
11208-3 Pump 2 pump control pressure sensor high pressure abnormal
11208-4 Pump 2 pump control pressure sensor low pressure abnormal
11301-3 Rotary pilot pressure sensor high pressure abnormality
11301-4 Rotary pilot pressure sensor low pressure abnormality
11302-3 Boom lifting pilot pressure sensor high pressure abnormality
11302-4 Boom lift pilot pressure sensor low pressure abnormality
11303-3 Stick retracts the pilot pressure sensor high pressure abnormality
11303-4 Stick retraction pilot pressure sensor low pressure abnormality
11304-3 Walking pilot pressure sensor high pressure abnormality
11304-4 Walking pilot pressure sensor low pressure abnormality
11307-3 Front-end working device pilot pressure sensor high pressure abnormality
11307-4 Front-end working device pilot pressure sensor low pressure abnormality
11400-2 Pump 2 Maximum Flow Limit Control Solenoid Valve Current Feedback Abnormal
11400-3 Pump 2 Maximum Flow Limit Control Solenoid Valve Feedback High Current Abnormal
11400-4 Pump 2 Maximum Flow Limit Control Solenoid Feedback Low Current Abnormal
11401-2 Torque control solenoid valve current feedback abnormal
11401-3 Torque control solenoid valve feedback high current abnormality
11401-4 Torque control solenoid feedback low current abnormality
11402-2 Solenoid valve unit (SF) (excavation regeneration) current feedback abnormal
11402-3 Solenoid valve unit (SF) (excavation regeneration) feedback high current abnormality
11402-4 Solenoid valve unit (SF) (excavation regeneration) feedback low current abnormality
11403-2 Solenoid valve unit (SC) (stick regeneration) current feedback abnormal
11403-3 Solenoid valve unit (SC) (stick regeneration) feedback high current abnormality
11403-4 Solenoid valve unit (SC) (stick regeneration) feedback low current abnormality
11404-2 Solenoid valve unit (SG) (overflow pressure control) current feedback abnormal
11404-3 Solenoid valve unit (SG) (overflow pressure control) feedback high current anomaly
11404-4 Solenoid valve unit (SG) (overflow pressure control) feedback low current abnormality
11405-2 Solenoid valve unit (SI) (fast travel motor selection) current feedback abnormal
11405-3 Solenoid valve unit (SI) (fast travel motor selection) feedback high current abnormality
11405-4 Solenoid valve unit (SI) (fast travel motor selection) feedback low current abnormality
11410-2 Pump 1 Maximum flow limit control solenoid valve (optional) current feedback abnormal
11410-3 Pump 1 Maximum Flow Limit Control Solenoid Valve (Optional) Feedback High Current Abnormal
11410-4 Pump 1 Maximum Flow Limit Control Solenoid Valve (Optional) Feedback Low Current Abnormal
11910-2 Actual engine speed received from ECM
11918-2 Operating mode received from the monitor
11911-2 Safety signal received from ECM
11920-2 Fuel flow received from ECM
11914-2 Radiator coolant temperature received from ECM
11901-3 Hydraulic oil temperature sensor high pressure
11901-4 Hydraulic oil temperature sensor low pressure
11905-3 Boom bottom pressure sensor high pressure (optional) abnormal
11905-4 Boom bottom pressure sensor low pressure (optional) abnormal
ECM
Sensor system
malfunction
Code
cause of issue
636-2 Camshaft angle sensor error (no signal) Although the crank signal appears, the cam signal does not appear.
636-2 Camshaft angle sensor error (signal error) The cam signal pulse does not match.
723-2 Crank speed sensor error (no signal) Although the crank signal appears, the cam signal does not appear.
723-2 Crank speed sensor error (signal error) The cam signal pulse does not match.
636-7 Camshaft angle sensor phase mismatch The right cam pulse at the crank gap does not exist.
172-3 Intake air temperature sensor abnormality (high pressure abnormality) The intake air temperature sensor voltage is higher than 4.95 V within 3 minutes after engine starting
172-4 Intake air temperature sensor abnormal (low pressure abnormal) Intake air temperature sensor voltage is lower than 0.1 V
110-3 Coolant temperature sensor abnormal (high pressure abnormal) Coolant temperature sensor voltage is higher than 4.85 V
110-4 Coolant temperature sensor abnormal (low pressure abnormality) Coolant temperature sensor voltage is lower than 0.1 V
102-4 Supercharged intake pressure sensor abnormal (high pressure abnormal) Supercharged intake pressure sensor voltage is higher than 4.9 V
102-3 Supercharged intake pressure sensor abnormal (low pressure abnormal) Supercharged intake pressure sensor voltage is lower than 0.1 V
10001-3 EGR position abnormal (no brush specification) EGR position output signal condition cannot appear
108-4 Atmospheric pressure sensor abnormality (high pressure abnormality) Atmospheric pressure sensor voltage is higher than 3.8 V
108-3 Atmospheric pressure sensor abnormality (low pressure abnormality) Atmospheric pressure sensor voltage is lower than 0.5 V
174-3 Fuel temperature sensor abnormality (high pressure abnormality) The fuel temperature sensor voltage is higher than 4.85 V within 3 minutes after engine starting
174-4 Fuel temperature sensor abnormal (low pressure abnormality) Fuel temperature sensor voltage is lower than 0.1 V
157-3 Common rail pressure sensor abnormality (high pressure abnormality) Common rail pressure sensor voltage is higher than 4.5 V
157-3 Common rail pressure sensor abnormality (low pressure abnormality) Common rail pressure sensor voltage is lower than 0.7 V
100-4 Oil pressure sensor abnormal (high pressure abnormality) Oil pressure sensor voltage is higher than 4.85 V
100-3 Oil pressure sensor abnormal (low pressure abnormality) Oil pressure sensor voltage is lower than 0.1 V
105-3 Supercharged intake air temperature sensor abnormality (high pressure abnormality) More than 5 minutes after engine start or coolant temperature exceeded
At 50 ° C (122 ° F), the boost intake air temperature sensor voltage is higher than 4.95V
105-4 Supercharged intake air temperature sensor abnormal (low pressure abnormal) Supercharged intake air temperature sensor voltage is lower than 0.1 V
636-2 Camshaft angle sensor is abnormal (no signal) ○ ○
636-2 Camshaft angle sensor error (signal error)
The operation is not affected.
Cannot restart after shutdown
○ ○
723-2 Crank speed sensor abnormal (no signal) ○
723-2 Crank speed sensor error (signal error)
Output power does not drop
○
636-7 Camshaft angle sensor phase mismatch is not affected during operation.
Cannot restart after shutdown ○ ○
172-3 Intake air temperature sensor abnormal (high pressure abnormality) ○
172-4 Intake air temperature sensor abnormal (low pressure abnormality)
Output power does not drop
○
110-3 Coolant temperature sensor abnormality (high pressure abnormality)
○
110-4 Coolant temperature sensor abnormal (low pressure abnormality)
Output power does not drop
○
102-4 Supercharged intake pressure sensor abnormal (high pressure abnormality)
○
102-3 Supercharged intake pressure sensor abnormal (low pressure abnormality)
Output power does not drop
○
10001-3 EGR position is abnormal (no brush specification) Output power does not decrease ○
108-4 Atmospheric pressure sensor abnormality (high pressure abnormality) ○
108-3 Atmospheric pressure sensor abnormality (low pressure abnormality)
Output power does not drop
○
174-3 Fuel temperature sensor abnormality (high pressure abnormality) ○
174-4 Fuel temperature sensor abnormality (low pressure abnormality)
Output power does not drop
○
157-3 Common rail pressure sensor abnormality (high pressure abnormality)
○
157-4 Common rail pressure sensor abnormality (low pressure abnormality)
Output power drop: 70%
○
100-4 Oil pressure sensor abnormal (high pressure abnormality) ○
100-3 Oil pressure sensor abnormality (low pressure abnormality)
105-3 Supercharged intake air temperature sensor is abnormal (high pressure abnormality) ○
105-4 Supercharged intake air temperature sensor abnormal (low pressure abnormality)
10002-2 EGR valve control abnormality The valve target lifting position and the actual lifting position difference are more than 20%
1347-0 Suction control valve drive system open circuit, +B or ground short
The suction control valve drives currents above 2400 mA or below 50 mA. Or the target current and actual current difference is 1000 mA or more
651-3 Nozzle #1 Drive System Open Injector 1 Monitor No Input Signal
652-3 Nozzle #2 Drive system open circuit Injector 2 monitor no input signal
653-3 Nozzle #3 Drive System Open Injector 3 Monitor No Input Signal
654-3 Nozzle #4 Drive System Open Injector 4 Monitor No Input Signal
655-3 Nozzle #5 Drive System Open Injector 5 Monitor No Input Signal
656-3 Nozzle #6 Drive System Open Injector 6 Monitor No Input Signal
157-0 Common oil tank pressure abnormal (level 1) Common oil tank pressure exceeds 185 MPa
157-0 Common oil tank pressure abnormal (secondary) First stage "common oil tank pressure abnormal", and the common oil tank pressure exceeds 190 MPa
157-2 Abnormal oil tank pressure (pump overpressure) When the oil suction control valve power is 40% or more, or when the suction control valve target pressure is 90 mm3/sec or less, the actual oil sump pressure is 40 MPa higher than the target sump pressure ( 410 kg/cm2, 5820 psi)
633-7 Pressure limiter open Pressure limiter open
1240-1 No pressure is delivered to the pump (fuel leak) When the suction control valve power is 33% or less, or when the pressure delivered to the suction control valve is 28000 mm3/sec or more and the speed is 1200 min-1, the actual The tank pressure is 50 MPa higher than the target tank pressure (510 kg/cm2, 7270 psi)
1239-1 No pressure to pump (fuel leak) When the pressure delivered to the suction control valve is 900 min-1, the actual tank pressure is 15 MPa (150 kg/cm2, 2180 psi) or less
1, fault code: 11301-3
Fault problem: high pressure abnormality of rotary pilot pressure sensor
Fault reason: voltage 4.75V or above
Affected control: (1) Stick regeneration control (2) Attachment flow control (3) Slewing alarm control
Symptoms of machine operation when the fault occurs: (1) Stick stick retracting and swiveling combined operation stick speed is slow (2) If the machine is equipped with a swing alarm and when the swing alarm is active, the swing alarm continues to sound
Remarks: (1) Check the wiring harness (2) Replace the rotary pilot pressure sensor
2, fault code: 11301-4
Fault problem: low pressure abnormality of the rotary pilot pressure sensor
Fault reason: voltage is less than 0.25V
Affected control: (1) Stick regeneration control (2) Attachment flow control (3) Slewing alarm control
Symptoms of machine operation when the fault occurs: (1) Stick stick retracting and swiveling combined operation stick speed is slow (2) If the machine is equipped with a swing alarm and when the swing alarm is active, the swing alarm continues to sound
Remarks: (1) Check the wiring harness (2) Replace the rotary pilot pressure sensor
3, fault code: 11301-3
Fault problem: boom raising pilot pressure sensor high pressure abnormality
Fault reason: voltage 4.75V or above
Affected control: (1) HP mode control (2 stick regeneration control (3) Excavator regeneration control (4) Automatic power boost control (5) Attachment flow control
Symptoms of machine operation when the fault occurs: (1) When the HP is controlled, the boom lifting speed is not increased. (2) The stick retracting and the boom lifting combination operation lever are slow.
Remarks: (1) Check harness (2) Replace boom lift pilot pressure sensor
4, fault code: 11301-4
Fault problem: boom raising pilot pressure sensor low pressure abnormality
Fault reason: voltage is lower than 0.25V
Affected control: (1) HP mode control (2 stick regeneration control (3) Excavator regeneration control (4) Automatic power boost control (5) Attachment flow control
Symptoms of machine operation when the fault occurs: (1) When the HP is controlled, the boom lifting speed is not increased. (2) The stick retracting and the boom lifting combination operation lever are slow.
Remarks: (1) Check harness (2) Replace boom lift pilot pressure sensor
