320D3 and 323D3 Excavators Machine Electronic Control System Diagnostic Trouble Codes Caterpillar


Diagnostic Trouble Codes
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1.1. Component Identifier (CID) and Failure Mode Identifier Information

The following is a list of Diagnostic Trouble Codes (DTCs) for the machines associated with this manual. When a diagnostic code becomes active, refer to the Troubleshooting section of this manual for a specific troubleshooting procedure.

Component Identifier (CID) and Failure Mode Identifier Information

Table 1
Machine ECM (MID 299) 
DTC  Description  Procedure 
17-3  Fuel Shutoff Valve : Voltage Above Normal  Solenoid Valve - Test 
17-5  Fuel Shutoff Valve : Current Below Normal  Solenoid Valve - Test 
17-6  Fuel Shutoff Valve : Current Above Normal  Solenoid Valve - Test 
41-3  8 VDC Supply : Voltage Above Normal  Sensor Supply - Test 
41-4  8 VDC Supply : Voltage Below Normal  Sensor Supply - Test 
96-4  Fuel Level Sensor : Voltage Below Normal  Sensor Signal (Analog, Passive) - Test 
100-3  Engine Oil Pressure Sensor : Voltage Above Normal  Sensor Signal (Analog, Active) - Test 
100-4  Engine Oil Pressure Sensor : Voltage Below Normal  Sensor Signal (Analog, Active) - Test 
110-4  Coolant Temperature Sensor : Voltage Above Normal  Sensor Signal (Analog, Passive) - Test 
246-9  Proprietary CAN Data Link : Abnormal Update Rate  CAN Data Link - Test 
246-19  Proprietary CAN Data Link : Received Network Data In Error  CAN Data Link - Test 
247-9  SAE J1939 Data Link : Abnormal Update Rate  CAN Data Link - Test 
247-19  SAE J1939 Data Link : Received Network Data In Error  CAN Data Link - Test 
262-3  5 VDC Sensor DC Power Supply : Voltage Above Normal  Sensor Supply - Test 
262-4  5 VDC Sensor DC Power Supply : Voltage Below Normal  Sensor Supply - Test 
271-3  Fault Alarm : Voltage Above Normal  Alarm - Test 
271-5  Fault Alarm : Current Below Normal  Alarm - Test 
271-6  Fault Alarm : Current Above Normal  Alarm - Test 
287-3  Low Current Digital Output 7 : Voltage Above Normal  Window Wiper Delay - Test 
287-6  Low Current Digital Output 7 : Current Above Normal  Window Wiper Delay - Test 
288-3  Low Current Digital Output 8 : Voltage Above Normal  Window Wiper Delay - Test 
288-6  Low Current Digital Output 8 : Current Above Normal  Window Wiper Delay - Test 
374-3  Swing Brake Solenoid : Voltage Above Normal  Solenoid Valve - Test 
374-5  Swing Brake Solenoid : Current Below Normal  Solenoid Valve - Test 
374-6  Swing Brake Solenoid : Current Above Normal  Solenoid Valve - Test 
376-3  Travel Alarm : Voltage Above Normal  Alarm - Test 
376-5  Travel Alarm : Current Below Normal  Alarm - Test 
376-6  Travel Alarm : Current Above Normal  Alarm - Test 
444-3  Starter Motor Relay : Voltage Above Normal  Relay - Test 
444-5  Starter Motor Relay : Current Below Normal  Relay - Test 
444-6  Starter Motor Relay : Current Above Normal  Relay - Test 
581-3  Power Shift Solenoid : Voltage Above Normal  Solenoid Valve - Test 
581-5  Power Shift Solenoid : Current Below Normal  Solenoid Valve - Test 
581-6  Power Shift Solenoid : Current Above Normal  Solenoid Valve - Test 
586-12  Rotary Switch : Bad Device or Component  Engine Speed Control - Test 
598-3  Travel Speed Change Solenoid : Voltage Above Normal  Solenoid Valve - Test 
598-5  Travel Speed Change Solenoid : Current Below Normal  Solenoid Valve - Test 
598-6  Travel Speed Change Solenoid : Current Above Normal  Solenoid Valve - Test 
600-3  Hydraulic Oil Temperature Sensor : Voltage Above Normal  Sensor Signal (Analog, Passive) - Test 
600-4  Hydraulic Oil Temperature Sensor : Voltage Below Normal  Sensor Signal (Analog, Passive) - Test 
735-3  Heavy Lift Solenoid : Voltage Above Normal  Solenoid Valve - Test 
735-5  Heavy Lift Solenoid : Current Below Normal  Solenoid Valve - Test 
735-6  Heavy Lift Solenoid : Current Above Normal  Solenoid Valve - Test 
781-3  Chassis/Cab Lamp Relay : Voltage Above Normal  Relay - Test 
781-6  Chassis/Cab Lamp Relay : Current Above Normal  Relay - Test 
1160-3  Hydraulic Lock Solenoid : Voltage Above Normal  Solenoid Valve - Test 
1160-5  Hydraulic Lock Solenoid : Current Below Normal  Solenoid Valve - Test 
1160-6  Hydraulic Lock Solenoid : Current Above Normal  Solenoid Valve - Test 
1440-3  Throttle Actuator : Voltage Above Normal  Sensor Signal (PWM) - Test 
1440-4  Throttle Actuator : Voltage Below Normal  Sensor Signal (PW(M) - Test 
1440-8  Throttle Actuator : Abnormal Frequency, Pulse Width, or Period  Sensor Signal (PWM) - Test 
1525-3  Straight Travel Solenoid: Voltage Above Normal  Solenoid Valve - Test 
1525-5  Straight Travel Solenoid: Current Below Normal  Solenoid Valve - Test 
1525-6  Straight Travel Solenoid: Current Above Normal  Solenoid Valve - Test 
1530-3  Quick Coupler Solenoid : Voltage Above Normal  Solenoid Valve - Test 
1530-5  Quick Coupler Solenoid : Current Below Normal  Solenoid Valve - Test 
1530-6  Quick Coupler Solenoid : Current Above Normal  Solenoid Valve - Test 
1590-3  Main Pump Flow Limitation Pressure Solenoid : Voltage Above Normal  Solenoid Valve - Test 
1590-5  Main Pump Flow Limitation Pressure Solenoid : Current Below Normal  Solenoid Valve - Test 
1590-6  Main Pump Flow Limitation Pressure Solenoid : Current Above Normal  Solenoid Valve - Test 
2263-3  Right Travel Pressure Sensor : Voltage Above Normal  Sensor Signal (Analog, Active) - Test 
2263-4  Right Travel Pressure Sensor : Voltage Below Normal  Sensor Signal (Analog, Active) - Test 
2264-3  Left Travel Pressure Sensor : Voltage Above Normal  Sensor Signal (Analog, Active) - Test 
2264-4  Left Travel Pressure Sensor : Voltage Below Normal  Sensor Signal (Analog, Active) - Test 
2265-3  Hydraulic Pump #1 Outlet Pressure Sensor : Voltage Above Normal  Sensor Signal (PWM) - Test 
2265-4  Hydraulic Pump #1 Outlet Pressure Sensor : Voltage Below Normal  Sensor Signal (PWM) - Test 
2265-8  Hydraulic Pump #1 Outlet Pressure Sensor : Abnormal Frequency, Pulse Width, or Period  Sensor Signal (PWM) - Test 
2266-3  Hydraulic Pump #2 Outlet Pressure Sensor : Voltage Above Normal  Sensor Signal (PWM) - Test 
2266-4  Hydraulic Pump #2 Outlet Pressure Sensor : Voltage Below Normal  Sensor Signal (PWM) - Test 
2266-8  Hydraulic Pump #2 Outlet Pressure Sensor : Abnormal Frequency, Pulse Width, or Period  Sensor Signal (PWM) - Test 
2300-9  Switch Panel : Abnormal Update Rate  CAN Data Link - Test 
2912-3  Front Wiper Speed Control Relay : Voltage Above Normal  Relay - Test 
2912-6  Front Wiper Speed Control Relay : Current Above Normal  Relay - Test 
2913-3  Window Washer Switch : Voltage Above Normal  Switch Circuits - Test 
2913-6  Window Washer Switch : Current Above Normal  Switch Circuits - Test 
3528-3  Barometric Pressure Sensor : Voltage Above Normal  Sensor Signal (Analog, Active) - Test 
3528-4  Barometric Pressure Sensor : Voltage Below Normal  Sensor Signal (Analog, Active) - Test 
3634-3  Boom Lamp Relay : Voltage Above Normal  Relay - Test 
3634-6  Boom Lamp Relay : Current Above Normal  Relay - Test 
3798-3  Straight Travel Pressure Sensor : Voltage Above Normal  Sensor Signal (Analog, Active) - Test 
3798-4  Straight Travel Pressure Sensor : Voltage Below Normal  Sensor Signal (Analog, Active) - Test 
4785-3  Implement Pilot Oil Pressure Sensor #1 : Voltage Above Normal  Sensor Signal (Analog, Active) - Test 
4785-4  Implement Pilot Oil Pressure Sensor #1 : Voltage Below Normal  Sensor Signal (Analog, Active) - Test