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374F and 390F Excavators and 390F MHPU Mobile Hydraulic Power Unit Diagnostic Trouble Codes Caterpillar


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Diagnostic Trouble Codes
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374F and 390F Excavators and 390F MHPU Mobile Hydraulic Power Unit [UENR2724]
374F and 390F Excavators and 390F MHPU Mobile Hydraulic Power Unit Window Wiper Delay - Test
374F and 390F Excavators and 390F MHPU Mobile Hydraulic Power Unit Event Codes
ELECTRICAL AND STARTING SYSTEM
374F and 390F Excavators and 390F MHPU Mobile Hydraulic Power Unit Diagnostic Capabilities
349F and 352F Excavators Determining Diagnostic Trouble Codes
349F and 352F Excavator Machine System Symptom Troubleshooting
374F and 390F Excavators and 390F MHPU Mobile Hydraulic Power Unit System Schematic
374F and 390F Excavators and 390F MHPU Mobile Hydraulic Power Unit General Information
374F and 390F Excavators and 390F MHPU Mobile Hydraulic Power Unit Diagnostic Trouble Codes
374F and 390F Excavators and 390F MHPU Mobile Hydraulic Power Unit Event Codes
1.1. Component Identifier (CID) and Failure Mode Identifier Information

The following is a list of Diagnostic Trouble Codes (DTCs) for the 374F and 390F Machines. 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

Show/hide table
Table 1
Machine ECM (MID 299) 
DTC  Description  Procedure 
41-6  8 VDC Supply: Current Above Normal  Sensor Supply - Test 
96-4  Fuel Level Sensor: Voltage Below Normal  Sensor Signal (Analog, Passive) - Test 
168-5  Electrical System Voltage: Current Below Normal  Electrical Power Supply - 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 
269-6  24 VDC Sensor Power Supply: Current Above Normal  Sensor Supply - 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 
438-3  Hydraulic Control Valve Warm Up Solenoid 1: Voltage Above Normal  Solenoid Valve - Test 
438-5  Hydraulic Control Valve Warm Up Solenoid 1: Current Below Normal  Solenoid Valve - Test 
438-6  Hydraulic Control Valve Warm Up Solenoid 1: Current Above Normal  Solenoid Valve - Test 
439-3  Hydraulic Control Valve Warm Up Solenoid 2: Voltage Above Normal  Solenoid Valve - Test 
439-5  Hydraulic Control Valve Warm Up Solenoid 2: Current Below Normal  Solenoid Valve - Test 
439-6  Hydraulic Control Valve Warm Up Solenoid 2: Current Above Normal  Solenoid Valve - Test 
463-3  Implement Dual Pressure Relief Solenoid: Voltage Above Normal  Solenoid Valve - Test 
463-5  Implement Dual Pressure Relief Solenoid: Current Below Normal  Solenoid Valve - Test 
463-6  Implement Dual Pressure Relief Solenoid: Current Above Normal  Solenoid Valve - 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 
590-9  Engine Control Module: Abnormal Update  CAN Data Link - 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 
600-4  Hydraulic Oil Temperature Sensor: Voltage Above Normal  Sensor Signal (Analog, Passive) - Test 
732-3  Fine Swing Solenoid: Voltage Above Normal  Solenoid Valve - Test 
732-5  Fine Swing Solenoid: Current Below Normal  Solenoid Valve - Test 
732-6  Fine Swing Solenoid: Current Above Normal  Solenoid Valve - 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  Lighting Relay: Voltage Above Normal  Relay - Test 
781-6  Lighting Relay: Current Above Normal  Relay - Test 
1119-3  Boom Anti Drift Solenoid: Voltage Above Normal  Solenoid Valve - Test 
1119-5  Boom Anti Drift Solenoid: Current Below Normal  Solenoid Valve - Test 
1119-6  Boom Anti Drift Solenoid: Current Above Normal  Solenoid Valve - Test 
1120-3  Stick Anti Drift Solenoid: Voltage Above Normal  Solenoid Valve - Test 
1120-5  Stick Anti Drift Solenoid: Current Below Normal  Solenoid Valve - Test 
1120-6  Stick Anti Drift Solenoid: Current Above Normal  Solenoid Valve - Test 
1125-3  Left Hand Lever Forward/Backward Position Sensor: Voltage Above Normal  Sensor Signal (PWM) - Test 
1125-4  Left Hand Lever Forward/Backward Position Sensor: Voltage Below Normal  Sensor Signal (PWM) - Test 
1125-8  Left Hand Lever Forward/Backward Position Sensor: Abnormal Frequency, Pulse Width, or Period  Sensor Signal (PWM) - Test 
1126-3  Left Hand Lever Left/Right Position Sensor: Voltage Above Normal  Sensor Signal (PWM) - Test 
1126-4  Left Hand Lever Left/Right Position Sensor: Voltage Below Normal  Sensor Signal (PWM) - Test 
1126-8  Left Hand Lever Left/Right Position Sensor: Abnormal Frequency, Pulse Width, or Period  Sensor Signal (PWM) - Test 
1127-3  Right Hand Lever Forward/Backward Position Sensor: Voltage Above Normal  Sensor Signal (PWM) - Test 
1127-4  Right Hand Lever Forward/Backward Position Sensor: Voltage Below Normal  Sensor Signal (PWM) - Test 
1127-8  Right Hand Lever Forward/Backward Position Sensor: Abnormal Frequency, Pulse Width, or Period  Sensor Signal (PWM) - Test 
1128-3  Right Hand Lever Left/Right Position Sensor: Voltage Above Normal  Sensor Signal (PWM) - Test 
1128-4  Right Hand Lever Left/Right Position Sensor: Voltage Below Normal  Sensor Signal (PWM) - Test 
1128-8  Right Hand Lever Left/Right Position Sensor: Abnormal Frequency, Pulse Width, or Period  Sensor Signal (PWM) - Test 
1129-3  Right Side Attachment Pedal Sensor: Voltage Above Normal  Sensor Signal (PWM) - Test 
1129-4  Right Side Attachment Pedal Sensor: Voltage Below Normal  Sensor Signal (PWM) - Test 
1129-8  Right Side Attachment Pedal Sensor: Abnormal Frequency, Pulse Width, or Period  Sensor Signal (PWM) - Test 
1130-3  Left Side Attachment Pedal Sensor: Voltage Above Normal  Sensor Signal (PWM) - Test 
1130-4  Left Side Attachment Pedal Sensor: Voltage Below Normal  Sensor Signal (PWM) - Test 
1130-8  Left Side Attachment Pedal Sensor: Abnormal Frequency, Pulse Width, or Period  Sensor Signal (PWM) - Test 
1143-3  Swing Right Solenoid: Voltage Above Normal  Solenoid Valve - Test 
1143-5  Swing Right Solenoid: Current Below Normal  Solenoid Valve - Test 
1143-6  Swing Right Solenoid: Current Above Normal  Solenoid Valve - Test 
1143-13  Swing Right Solenoid: Out of Calibration  Solenoid Valve - Test 
1144-3  Swing Left Solenoid: Voltage Above Normal  Solenoid Valve - Test 
1144-5  Swing Left Solenoid: Current Below Normal  Solenoid Valve - Test 
1144-6  Swing Left Solenoid: Current Above Normal  Solenoid Valve - Test 
1144-13  Swing Left Solenoid: Out of Calibration  Solenoid Valve - Test 
1149-3  Boom Lowering Check Valve Solenoid: Voltage Above Normal  Solenoid Valve - Test 
1149-5  Boom Lowering Check Valve Solenoid: Current Below Normal  Solenoid Valve - Test 
1149-6  Boom Lowering Check Valve Solenoid: Current Above Normal  Solenoid Valve - Test 
1159-3  Stick Lowering Check Valve Solenoid: Voltage Above Normal  Solenoid Valve - Test 
1159-5  Stick Lowering Check Valve Solenoid: Current Below Normal  Solenoid Valve - Test 
1159-6  Stick Lowering Check Valve Solenoid: Current Above Normal  Solenoid Valve - Test 
1160-3  Hydraulic Lock Solenoid: Voltage Above Normal  Solenoid Valve (Switch Controlled) - Test 
1160-6  Hydraulic Lock Solenoid: Current Above Normal  Solenoid Valve (Switch Controlled) - Test 
1178-3  Machine Overload Warning Pressure Sensor: Voltage Above Normal  Sensor Signal (PWM) - Test 
1178-4  Machine Overload Warning Pressure Sensor: Voltage Below Normal  Sensor Signal (PWM) - Test 
1178-8  Machine Overload Warning Pressure Sensor: 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 
1525-13  Straight Travel Solenoid: Out of Calibration  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 
1567-3  Implement Pump to Tank Bypass Solenoid #1: Voltage Above Normal  Solenoid Valve - Test 
1567-5  Implement Pump to Tank Bypass Solenoid #1: Current Below Normal  Solenoid Valve - Test 
1567-6  Implement Pump to Tank Bypass Solenoid #1: Current Above Normal  Solenoid Valve - Test 
1567-13  Implement Pump to Tank Bypass Solenoid #1: Out of Calibration  Solenoid Valve - Test 
1568-3  Implement Pump to Tank Bypass Solenoid #2: Voltage Above Normal  Solenoid Valve - Test 
1568-5  Implement Pump to Tank Bypass Solenoid #2: Current Below Normal  Solenoid Valve - Test 
1568-6  Implement Pump to Tank Bypass Solenoid #2: Current Above Normal  Solenoid Valve - Test 
1568-13  Implement Pump to Tank Bypass Solenoid #2: Out of Calibration  Solenoid Valve - Test 
1657-3  Left Joystick Thumbwheel: Voltage Above Normal  Sensor Signal (PWM) - Test 
1657-4  Left Joystick Thumbwheel: Voltage Below Normal  Sensor Signal (PWM) - Test 
1657-8  Left Joystick Thumbwheel: Abnormal Frequency, Pulse Width, or Period  Sensor Signal (PWM) - Test 
1658-3  Right Joystick Thumbwheel: Voltage Above Normal  Sensor Signal (PWM) - Test 
1658-4  Right Joystick Thumbwheel: Voltage Below Normal  Sensor Signal (PWM) - Test 
1658-8  Right Joystick Thumbwheel: Abnormal Frequency, Pulse Width, or Period  Sensor Signal (PWM) - Test 
1665-3  Variable Relief Valve #1 Pressure Solenoid: Voltage Above Normal  Solenoid Valve - Test 
1665-5  Variable Relief Valve #1 Pressure Solenoid: Current Below Normal  Solenoid Valve - Test 
1665-6  Variable Relief Valve #1 Pressure Solenoid: Current Above Normal  Solenoid Valve - Test 
1666-3  Variable Relief Valve #2 Pressure Solenoid: Voltage Above Normal  Solenoid Valve - Test 
1666-5  Variable Relief Valve #2 Pressure Solenoid: Current Below Normal  Solenoid Valve - Test 
1666-6  Variable Relief Valve #2 Pressure Solenoid: Current Above Normal  Solenoid Valve - Test 
1939-3  Auxiliary Hydraulic Boost Flow Supply Solenoid: Voltage Above Normal  Solenoid Valve - Test 
1939-5  Auxiliary Hydraulic Boost Flow Supply Solenoid: Current Below Normal  Solenoid Valve - Test 
1939-6  Auxiliary Hydraulic Boost Flow Supply Solenoid: Current Above Normal  Solenoid Valve - Test 
1969-3  Boom Cylinder Head End Pressure Sensor: Voltage Above Normal  Sensor Signal (PWM) - Test 
1969-4  Boom Cylinder Head End Pressure Sensor: Voltage Below Normal  Sensor Signal (PWM) - Test 
1969-8  Boom Cylinder Head End Pressure Sensor: Abnormal Frequency, Pulse Width, or Period  Sensor Signal (PWM) - Test 
2263-3  Right Travel Pressure Sensor: Voltage Above Normal  Sensor Signal (PWM) - Test 
2263-4  Right Travel Pressure Sensor: Voltage Below Normal  Sensor Signal (PWM) - Test 
2263-8  Right Travel Pressure Sensor: Abnormal Frequency, Pulse Width, or Period  Sensor Signal (PWM) - Test 
2264-3  Left Travel Pressure Sensor: Voltage Above Normal  Sensor Signal (PWM) - Test 
2264-4  Left Travel Pressure Sensor: Voltage Below Normal  Sensor Signal (PWM) - Test 
2264-8  Left Travel Pressure Sensor: Abnormal Frequency, Pulse Width, or Period  Sensor Signal (PWM) - Test 
2265-3  Pump #1 Pressure Sensor: Voltage Above Normal  Sensor Signal (PWM) - Test 
2265-4  Pump #1 Pressure Sensor: Voltage Below Normal  Sensor Signal (PWM) - Test 
2265-8  Pump #1 Pressure Sensor: Abnormal Frequency, Pulse Width, or Period  Sensor Signal (PWM) - Test 
2266-3  Pump #2 Pressure Sensor: Voltage Above Normal  Sensor Signal (PWM) - Test 
2266-4  Pump #2 Pressure Sensor: Voltage Below Normal  Sensor Signal (PWM) - Test 
2266-8  Pump #2 Pressure Sensor: Abnormal Frequency, Pulse Width, or Period  Sensor Signal (PWM) - Test 
2272-3  Combining Valve Solenoid: Voltage Above Normal  Solenoid Valve - Test 
2272-5  Combining Valve Solenoid: Current Below Normal  Solenoid Valve - Test 
2272-6  Combining Valve Solenoid: Current Above Normal  Solenoid Valve - Test 
2272-13  Combining Valve Solenoid: Out of Calibration  Solenoid Valve - Test 
2300-9  Switch Panel: Abnormal Update Rate  CAN Data Link - Test 
2855-3  Main Hydraulic Pump #1 Solenoid: Voltage Above Normal  Solenoid Valve - Test 
2855-5  Main Hydraulic Pump #1 Solenoid: Current Below Normal  Solenoid Valve - Test 
2855-6  Main Hydraulic Pump #1 Solenoid: Current Above Normal  Solenoid Valve - Test 
2856-3  Main Hydraulic Pump #2 Solenoid: Voltage Above Normal  Solenoid Valve - Test 
2856-5  Main Hydraulic Pump #2 Solenoid: Current Below Normal  Solenoid Valve - Test 
2856-6  Main Hydraulic Pump #2 Solenoid: Current Above Normal  Solenoid Valve - Test 
2899-3  Main Hydraulic Pump #1 Displacement Sensor: Voltage Above Normal  Sensor Signal (PWM) - Test 
2899-4  Main Hydraulic Pump #1 Displacement Sensor: Voltage Below Normal  Sensor Signal (PWM) - Test 
2899-8  Main Hydraulic Pump #1 Displacement Sensor: Abnormal Frequency, Pulse Width, or Period  Sensor Signal (PWM) - Test 
2900-3  Main Hydraulic Pump #2 Displacement Sensor: Voltage Above Normal  Sensor Signal (PWM) - Test 
2900-4  Main Hydraulic Pump #2 Displacement Sensor: Voltage Below Normal  Sensor Signal (PWM) - Test 
2900-8  Main Hydraulic Pump #2 Displacement Sensor: Abnormal Frequency, Pulse Width, or Period  Sensor Signal (PWM) - 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 
3041-6  12 V Sensor Power Supply: Current Above Normal  Sensor Supply - Test 
3277-3  Swing Pressure Sensor: Voltage Above Normal  Sensor Signal (PWM) - Test 
3277-4  Swing Pressure Sensor: Voltage Below Normal  Sensor Signal (PWM) - Test 
3277-8  Swing Pressure Sensor: Above Normal  Sensor Signal (PWM) - Test 
3634-3  Boom Light Relay: Voltage Above Normal  Relay - Test 
3634-6  Boom Light Relay: Current Above Normal  Relay - Test 
3798-3  Straight Travel Pressure Sensor: Voltage Above Normal  Sensor Signal (PWM) - Test 
3798-4  Straight Travel Pressure Sensor: Voltage Below Normal  Sensor Signal (PWM) - Test 
3798-8  Straight Travel Pressure Sensor: Above Normal  Sensor Signal (PWM) - Test 

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Table 2
Implement ECM 1 (MID 432) 
DTC  Description  Procedure 
41-3  8 VDC Supply: Voltage Above Normal  Sensor Supply - Test 
41-4  8 VDC Supply: Voltage Below Normal  Sensor Supply - Test 
168-3  Electrical System Voltage: Voltage Above Normal  Electrical Power Supply - Test 
168-4  Electrical System Voltage: Voltage Below Normal  Electrical Power Supply - Test 
1968-3  Boom Cylinder Rod End Pressure Sensor: Voltage Above Normal  Sensor Signal (PWM) - Test 
1968-4  Boom Cylinder Rod End Pressure Sensor: Voltage Below Normal  Sensor Signal (PWM) - Test 
1968-8  Boom Cylinder Rod End Pressure Sensor: Abnormal Frequency, Pulse Width, or Period  Sensor Signal (PWM) - Test 
1969-3  Boom Cylinder Head End Pressure Sensor: Voltage Above Normal  Sensor Signal (PWM) - Test 
1969-4  Boom Cylinder Head End Pressure Sensor: Voltage Below Normal  Sensor Signal (PWM) - Test 
1969-8  Boom Cylinder Head End Pressure Sensor: Abnormal Frequency, Pulse Width, or Period  Sensor Signal (PWM) - Test 
1970-3  Bucket Cylinder Rod End Pressure Sensor: Voltage Above Normal  Sensor Signal (PWM) - Test 
1970-4  Bucket Cylinder Rod End Pressure Sensor: Voltage Below Normal  Sensor Signal (PWM) - Test 
1970-8  Bucket Cylinder Rod End Pressure Sensor: Abnormal Frequency, Pulse Width, or Period  Sensor Signal (PWM) - Test 
1971-3  Bucket Cylinder Head End Pressure Sensor: Voltage Above Normal  Sensor Signal (PWM) - Test 
1971-4  Bucket Cylinder Head End Pressure Sensor: Voltage Below Normal  Sensor Signal (PWM) - Test 
1971-8  Bucket Cylinder Head End Pressure Sensor: Abnormal Frequency, Pulse Width, or Period  Sensor Signal (PWM) - Test 
1986-3  Pump to Bucket Rod End Solenoid: Voltage Above Normal  Solenoid - Test 
1986-5  Pump to Bucket Rod End Solenoid: Current Below Normal  Solenoid - Test 
1986-6  Pump to Bucket Rod End Solenoid: Current Above Normal  Solenoid - Test 
1986-13  Pump to Bucket Rod End Solenoid: Out of Calibration  Solenoid - Test 
1987-3  Pump to Bucket Head End Solenoid: Voltage Above Normal  Solenoid - Test 
1987-5  Pump to Bucket Head End Solenoid: Current Below Normal  Solenoid - Test 
1987-6  Pump to Bucket Head End Solenoid: Current Above Normal  Solenoid - Test 
1987-13  Pump to Bucket Head End Solenoid: Out of Calibration  Solenoid - Test 
1988-3  Pump to Boom Rod End Solenoid: Voltage Above Normal  Solenoid - Test 
1988-5  Pump to Boom Rod End Solenoid: Current Below Normal  Solenoid - Test 
1988-6  Pump to Boom Rod End Solenoid: Current Above Normal  Solenoid - Test 
1988-13  Pump to Boom Rod End Solenoid: Out of Calibration  Solenoid - Test 
1989-3  Pump to Boom Head End Solenoid: Voltage Above Normal  Solenoid - Test 
1989-5  Pump to Boom Head End Solenoid: Current Below Normal  Solenoid - Test 
1989-6  Pump to Boom Head End Solenoid: Current Above Normal  Solenoid - Test 
1989-13  Pump to Boom Head End Solenoid: Out of Calibration  Solenoid - Test 
2014-3  Bucket Rod End to Tank Solenoid: Voltage Above Normal  Solenoid - Test 
2014-5  Bucket Rod End to Tank Solenoid: Current Below Normal  Solenoid - Test 
2014-6  Bucket Rod End to Tank Solenoid: Current Above Normal  Solenoid - Test 
2014-13  Bucket Rod End to Tank Solenoid: Out of Calibration  Solenoid - Test 
2015-3  Bucket Head End to Tank Solenoid: Voltage Above Normal  Solenoid - Test 
2015-5  Bucket Head End to Tank Solenoid: Current Below Normal  Solenoid - Test 
2015-6  Bucket Head End to Tank Solenoid: Current Above Normal  Solenoid - Test 
2015-13  Bucket Head End to Tank Solenoid: Out of Calibration  Solenoid - Test 
2016-3  Boom Rod End to Tank Solenoid: Voltage Above Normal  Solenoid - Test 
2016-5  Boom Rod End to Tank Solenoid: Current Below Normal  Solenoid - Test 
2016-6  Boom Rod End to Tank Solenoid: Current Above Normal  Solenoid - Test 
2016-13  Boom Rod End to Tank Solenoid: Out of Calibration  Solenoid - Test 
2017-3  Boom Head End to Tank Solenoid: Voltage Above Normal  Solenoid - Test 
2017-5  Boom Head End to Tank Solenoid: Current Below Normal  Solenoid - Test 
2017-6  Boom Head End to Tank Solenoid: Current Above Normal  Solenoid - Test 
2017-13  Boom Head End to Tank Solenoid: Out of Calibration  Solenoid - Test 
3211-3  Pump to Boom Rod End Solenoid Return: Voltage Above Normal  Solenoid Return - Test 
3211-4  Pump to Boom Rod End Solenoid Return: Voltage Below Normal  Solenoid Return - Test 
3212-3  Pump to Boom Head End Solenoid Return: Voltage Above Normal  Solenoid Return - Test 
3212-4  Pump to Boom Head End Solenoid Return: Voltage Below Normal  Solenoid Return - Test 
3213-3  Pump to Bucket Rod End Solenoid Return: Voltage Above Normal  Solenoid Return - Test 
3213-4  Pump to Bucket Rod End Solenoid Return: Voltage Below Normal  Solenoid Return - Test 
3214-3  Pump to Bucket Head End Solenoid Return: Voltage Above Normal  Solenoid Return - Test 
3214-4  Pump to Bucket Head End Solenoid Return: Voltage Below Normal  Solenoid Return - Test 
3225-3  Boom Rod End to Tank Solenoid Return: Voltage Above Normal  Solenoid Return - Test 
3225-4  Boom Rod End to Tank Solenoid Return: Voltage Below Normal  Solenoid Return - Test 
3226-3  Boom Head End to Tank Solenoid Return: Voltage Above Normal  Solenoid Return - Test 
3226-4  Boom Head End to Tank Solenoid Return: Voltage Below Normal  Solenoid Return - Test 
3227-3  Bucket Rod End to Tank Solenoid Return: Voltage Above Normal  Solenoid Return - Test 
3227-4  Bucket Rod End to Tank Solenoid Return: Voltage Below Normal  Solenoid Return - Test 
3228-3  Bucket Head End to Tank Solenoid Return: Voltage Above Normal  Solenoid Return - Test 
3228-4  Bucket Head End to Tank Solenoid Return: Voltage Below Normal  Solenoid Return - Test 

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Table 3
Implement ECM 2 (MID 433) 
DTC  Description  Procedure 
41-3  8 VDC Supply: Voltage Above Normal  Sensor Supply - Test 
41-4  8 VDC Supply: Voltage Below Normal  Sensor Supply - Test 
168-3  Electrical System Voltage: Voltage Above Normal  Electrical Power Supply - Test 
168-4  Electrical System Voltage: Voltage Below Normal  Electrical Power Supply - Test 
1972-3  Stick Cylinder Rod End Pressure Sensor: Voltage Above Normal  Sensor Signal (PWM) - Test 
1972-4  Stick Cylinder Rod End Pressure Sensor: Voltage Below Normal  Sensor Signal (PWM) - Test 
1972-8  Stick Cylinder Rod End Pressure Sensor: Abnormal Frequency, Pulse Width, or Period  Sensor Signal (PWM) - Test 
1973-3  Stick Cylinder Head End Pressure Sensor: Voltage Above Normal  Sensor Signal (PWM) - Test 
1973-4  Stick Cylinder Head End Pressure Sensor: Voltage Below Normal  Sensor Signal (PWM) - Test 
1973-8  Stick Cylinder Head End Pressure Sensor: Abnormal Frequency, Pulse Width, or Period  Sensor Signal (PWM) - Test 
1980-3  Attachment #1 Cylinder Rod End Pressure Sensor: Voltage Above Normal  Sensor Signal (PWM) - Test 
1980-4  Attachment #1 Cylinder Rod End Pressure Sensor: Voltage Below Normal  Sensor Signal (PWM) - Test 
1980-8  Attachment #1 Cylinder Rod End Pressure Sensor Abnormal Frequency, Pulse Width, or Period  Sensor Signal (PWM) - Test 
1981-3  Attachment #1 Cylinder Head End Pressure Sensor: Voltage Above Normal  Sensor Signal (PWM) - Test 
1981-4  Attachment #1 Cylinder Head End Pressure Sensor: Voltage Below Normal  Sensor Signal (PWM) - Test 
1981-8  Attachment #1 Cylinder Head End Pressure Sensor Abnormal Frequency, Pulse Width, or Period  Sensor Signal (PWM) - Test 
2000-3  Pump to Stick Rod End Solenoid: Voltage Above Normal  Solenoid - Test 
2000-5  Pump to Stick Rod End Solenoid: Current Below Normal  Solenoid - Test 
2000-6  Pump to Stick Rod End Solenoid: Current Above Normal  Solenoid - Test 
2000-13  Pump to Stick Rod End Solenoid: Out of Calibration  Solenoid - Test 
2001-3  Pump to Stick Head End Solenoid: Voltage Above Normal  Solenoid - Test 
2001-5  Pump to Stick Head End Solenoid: Current Below Normal  Solenoid - Test 
2001-6  Pump to Stick Head End Solenoid: Current Above Normal  Solenoid - Test 
2001-13  Pump to Stick Head End Solenoid: Out of Calibration  Solenoid - Test 
2008-3  Pump to Attachment #1 Rod End Solenoid: Voltage Above Normal  Solenoid - Test 
2008-5  Pump to Attachment #1 Rod End Solenoid: Current Below Normal  Solenoid - Test 
2008-6  Pump to Attachment #1 Rod End Solenoid: Current Above Normal  Solenoid - Test 
2008-13  Pump to Attachment #1 Rod End Solenoid: Out of Calibration  Solenoid - Test 
2009-3  Pump to Attachment #1 Rod End Solenoid: Voltage Above Normal  Solenoid - Test 
2009-5  Pump to Attachment #1 Rod End Solenoid: Current Below Normal  Solenoid - Test 
2009-6  Pump to Attachment #1 Rod End Solenoid: Current Above Normal  Solenoid - Test 
2009-13  Pump to Attachment #1 Rod End Solenoid: Out of Calibration  Solenoid - Test 
2018-3  Stick Rod End to Tank Solenoid: Voltage Above Normal  Solenoid - Test 
2018-5  Stick Rod End to Tank Solenoid: Current Below Normal  Solenoid - Test 
2018-6  Stick Rod End to Tank Solenoid: Current Above Normal  Solenoid - Test 
2018-13  Stick Rod End to Tank Solenoid: Out of Calibration  Solenoid - Test 
2019-3  Stick Head End to Tank Solenoid: Voltage Above Normal  Solenoid - Test 
2019-5  Stick Head End to Tank Solenoid: Current Below Normal  Solenoid - Test 
2019-6  Stick Head End to Tank Solenoid: Current Above Normal  Solenoid - Test 
2019-13  Stick Head End to Tank Solenoid: Out of Calibration  Solenoid - Test 
2026-3  Attachment #1 Rod End to Tank Solenoid: Voltage Above Normal  Solenoid - Test 
2026-5  Attachment #1 Rod End to Tank Solenoid: Current Below Normal  Solenoid - Test 
2026-6  Attachment #1 Rod End to Tank Solenoid: Current Above Normal  Solenoid - Test 
2026-13  Attachment #1 Rod End to Tank Solenoid: Out of Calibration  Solenoid - Test 
2027-3  Attachment #1 Head End to Tank Solenoid: Voltage Above Normal  Solenoid - Test 
2027-5  Attachment #1 Head End to Tank Solenoid: Current Below Normal  Solenoid - Test 
2027-6  Attachment #1 Head End to Tank Solenoid: Current Above Normal  Solenoid - Test 
2027-13  Attachment #1 Head End to Tank Solenoid: Out of Calibration  Solenoid - Test 
3215-3  Pump to Stick Rod End Solenoid Return: Voltage Above Normal  Solenoid Return - Test 
3215-4  Pump to Stick Rod End Solenoid Return: Voltage Below Normal  Solenoid Return - Test 
3216-3  Pump to Stick Head End Solenoid Return: Voltage Above Normal  Solenoid Return - Test 
3216-4  Pump to Stick Head End Solenoid Return: Voltage Below Normal  Solenoid Return - Test 
3219-3  Pump to Attachment #1 Rod End to Tank Solenoid Return: Voltage Above Normal  Solenoid Return - Test 
3219-4  Pump to Attachment #1 Rod End to Tank Solenoid Return: Voltage Below Normal  Solenoid Return - Test 
3220-3  Pump to Attachment #1 Head End to Tank Solenoid Return: Voltage Above Normal  Solenoid Return - Test 
3220-4  Pump to Attachment #1 Head End to Tank Solenoid Return: Voltage Below Normal  Solenoid Return - Test 
3229-3  Stick Rod End to Tank Solenoid Return: Voltage Above Normal  Solenoid Return - Test 
3229-4  Stick Rod End to Tank Solenoid Return: Voltage Below Normal  Solenoid Return - Test 
3230-3  Stick Head End to Tank Solenoid Return: Voltage Above Normal  Solenoid Return - Test 
3230-4  Stick Head End to Tank Solenoid Return: Voltage Below Normal  Solenoid Return - Test 
3233-3  Attachment #1 Rod End to Tank Solenoid Return: Voltage Above Normal  Solenoid Return - Test 
3233-4  Attachment #1 Rod End to Tank Solenoid Return: Voltage Below Normal  Solenoid Return - Test 
3234-3  Attachment #1 Head End to Tank Solenoid Return: Voltage Above Normal  Solenoid Return - Test 
3234-4  Attachment #1 Head End to Tank Solenoid Return: Voltage Below Normal  Solenoid Return - Test 

Information System:

CX31 and CX31 HT On-Highway Transmissions Transmission Oil - Change
2013/10/11 New Side Cover and Oil Drain System Are Used on Certain 3512C Locomotive Engines {1307}
C4.4 Industrial Engine Safety Messages
CX31 and CX31 HT On-Highway Transmissions Oil Filter (Transmission) - Replace
2013/10/29 Reannouncing the Appearance Change to Cat Reman Direct Injection Fuel Nozzles for Certain On-Highway Truck Engines {1250, 1251, 1290, 1713}
2013/10/17 Reannouncing the Appearance Change to Cat Reman Direct Injection Fuel Nozzles for Certain Commercial Engines {1250, 1251, 1290, 1713}
C175-16 Locomotive Engines Engine Crankcase Breather - Clean
2014/03/07 Improved Alternator Mounting Groups Are Now Used on Certain C15 and C18 Engines {1154, 1405}
14L Motor Grader Machine Systems Steering Control Valve (with Secondary Steering) - Assemble
14L Motor Grader Machine Systems Steering Control Valve (with Secondary Steering) - Disassemble
Cat</SUP> Detect Object Detection Hardware Generation 4 for Small Off Highway Trucks, Motor Graders, Large Wheel Loaders, Large Wheel Dozers and Articulated Trucks Main Screen (with Fleet Onboard)
G3306B Gas Engines Radiator
188-3242 Filter Cart Group and 227-2479 Filter Cart Group{0374, 0599, 0680, 0738, 0768, 5050, 5056, 5095}
CX31 and CX31 HT On-Highway Transmissions Magnetic Screen (Transmission) - Clean
Procedures for Using the 212-1503 Portable Parts Washer{0374, 0599, 0680, 0699, 0700}
2013/10/02 Improved Gear Train Components are Now Used on TH48-E80 Petroleum Transmissions {3064, 3160}
CX31-P600 Petroleum Transmission Power Train Hydraulic System
Three60 Precision Control System System Overview
C15 and C18 Engines for Caterpillar Built Machines General Information
Using the 9U-5792, 4C-5052, 4C-5054, 4C-3670, and 4C-3680 Hydraulic Hose Machines{0374, 0599, 0684, 0738, 5057}
CX31 and CX31 HT On-Highway Transmissions Transmission Control
CX31 and CX31 HT On-Highway Transmissions Transmission Operation
188-3922 Broken Exhaust Bolt and Stud Removal Group for 3114, 3116, 3126, 3126B, 3176, 3176B, C-10, and C12 Engines{0374, 0599, 0701, 0702, 0703}
349F and 352F Excavators Machine System Specifications Track Carrier Roller