00 Fault code Fault description
01 The data is valid, but above normal operating values
02 The data is valid but below normal operating values
03 Signal error (unstable, discontinuous or faulty data)
04 The voltage is above normal
05 The voltage is below normal
06 The current is below normal
07 The current is above normal
08 The mechanical system is not responding normally
09 Signal anomaly (frequency, pulse width, or periodic anomaly)
10 Update anomalies
11 Anomalous rate of change
12 Failure modes cannot be identified
13 Damage to equipment or components
14 Calibration failure
15 Parallel metering fault
16 Parallel metering fault
17 Parallel measurement invalid
18 The module (program) is not responding
19 Sensor power failure
20 Error receiving network data
0041 Parallel metering fault
0096 8v power supply
0110 Fuel oil level sensor
0167 Engine coolant temperature sensor
0168 Alternator
0190 System power supply
0246 Engine speed sensor
0247 The CAN data line
1939 SAE J
0248 USB cable
0254 Caterpillar data line
0262 Electronic control module(ECM)
0271 Sv sensor power supply
0291 Warning device
0362 Engine cooling fan solenoid valve
0374 Engine variable speed fan control solenoid valve
0485 Rotary brake solenoid valve
0544 Engine fan recovery solenoid valve
0581 Engine cooling fan variable speed solenoid valve
0586 Power shift pressure proportional solenoid valve
0588 Engine throttle plate
0590 Instrument display system
0598 ECM
0600 Speed change solenoid valve
0735 Hydraulic oil temperature sensor
1129 Heavy duty lift solenoid valve
1130 Pedal sensor attached to right side
1160 Pedal sensor attached to left side
1178 Hydraulic locking solenoid valve
1522 Mechanical overload alarm pressure sensor
1523 Relief valve check valve Solenoid Valve No.2
1525 Relief valve check valve Solenoid Valve No.1
1590 Straight line travel solenoid valve
1593 Main hydraulic pump output limiting pressure solenoid valve
1594 Attached valve extends pressure solenoid Valve No. 1
1595 Attached valve extends pressure solenoid Valve No. 2
1596 Auxiliary valve pressure solenoid valve No. 3
1597 Auxiliary valve retract pressure solenoid Valve No. 1
1598 Auxiliary valve retract pressure solenoid Valve No. 2
1609 Auxiliary valve retract pressure solenoid Valve No. 3
1657 F2 mode valve loop feedback pressure sensor
1658 Top button on left joystick
1665 Right joystick top button
1666 Adjustable pressure relief valve Solenoid Valve No. 1
1931 Adjustable pressure relief valve Solenoid Valve No. 2
2265 The optional circuit
2266 Pump output pressure sensor 1
2275 Pump output pressure sensor 2
2280 Crushing hammer oil return route control (through the oil tank) solenoid valve
2300 Walking alarm relay
Cat 320D Excavator Partial Fault Code
