Heavy Equipment Fault Codes

1,480 codes
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All Caterpillar (1,290) Komatsu (57) John Deere (52) Volvo (43) Doosan (21) JCB (9) Case (8)
Code Brand Model Error / Alarm Type Severity Action
321-15 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 321 FMI 15 - Brake Oil Pressure (Low) Data Valid But Above Normal Operating Range (Least Severe) heavy-equipment Info View →
252-8 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 252 FMI 8 - Fuel Injector (Cylinder 2) Abnormal Frequency/Pulse Width heavy-equipment Major View →
CID-21-FMI-2 Caterpillar CAT Electronic Control Module Caterpillar CID 21 FMI 2 - ECM Power Supply: Data Erratic, Intermittent, or Incorrect heavy-equipment Critical View →
CID-47-FMI-6 Caterpillar CAT Electronic Control Module Caterpillar CID 47 FMI 6 - Turbocharger Compressor Outlet Temperature: Current Above Normal, or Grounded Circuit heavy-equipment Major View →
3-0 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 3 FMI 0 - Injection Actuation Pressure Sensor Data Valid But Above Normal Range heavy-equipment Major View →
CID-158-FMI-5 Caterpillar CAT Electronic Control Module Caterpillar CID 158 FMI 5 - Armrest Position Switch: Current Below Normal, or Open Circuit heavy-equipment Minor View →
441-3 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 441 FMI 3 - Engine Warning Indicator Circuit Voltage Above Normal/Shorted High heavy-equipment Major View →
111-15 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 111 FMI 15 - Battery Voltage Data Valid But Above Normal Operating Range (Least Severe) heavy-equipment Info View →
CID-44-FMI-4 Caterpillar CAT Electronic Control Module Caterpillar CID 44 FMI 4 - Crankcase Pressure: Voltage Below Normal, or Shorted to Low Source heavy-equipment Major View →
415-16 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 415 FMI 16 - Engine Oil Level (Low) Data Valid But Above Normal Operating Range (Moderately Severe) heavy-equipment Minor View →
CID-200-FMI-0 Caterpillar CAT Electronic Control Module Caterpillar CID 200 FMI 0 - Work Tool Calibration: Data Valid But Above Normal Operational Range heavy-equipment Minor View →
471-17 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 471 FMI 17 - Engine Over-speed Protection Data Valid But Below Normal Operating Range (Least Severe) heavy-equipment Info View →
58-3 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 58 FMI 3 - Analog Temperature Sensor Voltage Above Normal/Shorted High heavy-equipment Major View →
110-15 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 110 FMI 15 - Radiator Coolant Temperature Sensor Data Valid But Above Normal Operating Range (Least Severe) heavy-equipment Info View →
168-5 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 168 FMI 5 - Engine ECM Current Below Normal/Open Circuit heavy-equipment Major View →
46-6 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 46 FMI 6 - ECM Connector (Rack Sensor) Current Above Normal/Grounded Circuit heavy-equipment Major View →
42-13 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 42 FMI 13 - Engine Oil Temperature Sensor Out of Calibration heavy-equipment Minor View →
35-0 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 35 FMI 0 - Radiator Coolant Level Sensor Data Valid But Above Normal Range heavy-equipment Major View →
255-3 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 255 FMI 3 - Fuel Injector (Cylinder 5) Voltage Above Normal/Shorted High heavy-equipment Major View →
CID-162-FMI-4 Caterpillar CAT Electronic Control Module Caterpillar CID 162 FMI 4 - Joystick Position #4: Voltage Below Normal, or Shorted to Low Source heavy-equipment Minor View →
CID-163-FMI-5 Caterpillar CAT Electronic Control Module Caterpillar CID 163 FMI 5 - Pedal Position #1: Current Below Normal, or Open Circuit heavy-equipment Minor View →
CID-84-FMI-13 Caterpillar CAT Electronic Control Module Caterpillar CID 84 FMI 13 - Cylinder Cutout #1: Out of Calibration heavy-equipment Major View →
38-2 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 38 FMI 2 - Fuel Temperature Sensor Data Erratic/Intermittent heavy-equipment Minor View →
CID-107-FMI-4 Caterpillar CAT Electronic Control Module Caterpillar CID 107 FMI 4 - Fan Control Solenoid: Voltage Below Normal, or Shorted to Low Source heavy-equipment Major View →
CID-176-FMI-3 Caterpillar CAT Electronic Control Module Caterpillar CID 176 FMI 3 - Shear Mode Switch: Voltage Above Normal, or Shorted to High Source heavy-equipment Minor View →
40-2 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 40 FMI 2 - Engine Oil Level Sensor Data Erratic/Intermittent heavy-equipment Minor View →
CID-115-FMI-0 Caterpillar CAT Electronic Control Module Caterpillar CID 115 FMI 0 - Final Drive Oil Temperature: Data Valid But Above Normal Operational Range heavy-equipment Minor View →
411-18 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 411 FMI 18 - Radiator Coolant Level (Low) Data Valid But Below Normal Operating Range (Moderately Severe) heavy-equipment Minor View →
35-15 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 35 FMI 15 - Radiator Coolant Level Sensor Data Valid But Above Normal Operating Range (Least Severe) heavy-equipment Info View →
241-16 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 241 FMI 16 - Engine Speed-Timing Sensor (Camshaft) Data Valid But Above Normal Operating Range (Moderately Severe) heavy-equipment Minor View →
361-3 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 361 FMI 3 - Engine Oil Temperature (High) Voltage Above Normal/Shorted High heavy-equipment Major View →
CID-81-FMI-2 Caterpillar CAT Electronic Control Module Caterpillar CID 81 FMI 2 - Timing Sensor: Data Erratic, Intermittent, or Incorrect heavy-equipment Critical View →
CID-154-FMI-8 Caterpillar CAT Electronic Control Module Caterpillar CID 154 FMI 8 - Remote Shutdown Command: Abnormal Frequency, Pulse Width, or Period heavy-equipment Critical View →
71-15 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 71 FMI 15 - Fuel Injection Quantity Data Valid But Above Normal Operating Range (Least Severe) heavy-equipment Info View →
401-13 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 401 FMI 13 - Alternator Not Charging Out of Calibration heavy-equipment Minor View →
CID-4-FMI-4 Caterpillar CAT Electronic Control Module Caterpillar CID 4 FMI 4 - Fuel Pressure: Voltage Below Normal, or Shorted to Low Source heavy-equipment Major View →
2-16 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 2 FMI 16 - Engine Speed-Timing Sensor Data Valid But Above Normal Operating Range (Moderately Severe) heavy-equipment Minor View →
CID-195-FMI-3 Caterpillar CAT Electronic Control Module Caterpillar CID 195 FMI 3 - Work Tool Cycle Count: Voltage Above Normal, or Shorted to High Source heavy-equipment Minor View →
CID-185-FMI-0 Caterpillar CAT Electronic Control Module Caterpillar CID 185 FMI 0 - Attachment Flow: Data Valid But Above Normal Operational Range heavy-equipment Minor View →
CID-145-FMI-0 Caterpillar CAT Electronic Control Module Caterpillar CID 145 FMI 0 - Machine Pitch Angle: Data Valid But Above Normal Operational Range heavy-equipment Minor View →
CID-26-FMI-3 Caterpillar CAT Electronic Control Module Caterpillar CID 26 FMI 3 - Sensor Supply Voltage 8V: Voltage Above Normal, or Shorted to High Source heavy-equipment Major View →
91-2 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 91 FMI 2 - Injection Actuation Pressure Control Valve (Open) Data Erratic/Intermittent heavy-equipment Minor View →
CID-37-FMI-6 Caterpillar CAT Electronic Control Module Caterpillar CID 37 FMI 6 - Alternator Output: Current Above Normal, or Grounded Circuit heavy-equipment Major View →
CID-53-FMI-6 Caterpillar CAT Electronic Control Module Caterpillar CID 53 FMI 6 - SCR Dosing Unit: Current Above Normal, or Grounded Circuit heavy-equipment Major View →
251-5 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 251 FMI 5 - Fuel Injector (Cylinder 1) Current Below Normal/Open Circuit heavy-equipment Major View →
CID-44-FMI-13 Caterpillar CAT Electronic Control Module Caterpillar CID 44 FMI 13 - Crankcase Pressure: Out of Calibration heavy-equipment Major View →
16-2 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 16 FMI 2 - Engine Oil Pressure Sensor Data Erratic/Intermittent heavy-equipment Minor View →
CID-91-FMI-4 Caterpillar CAT Electronic Control Module Caterpillar CID 91 FMI 4 - Engine Serial Number: Voltage Below Normal, or Shorted to Low Source heavy-equipment Major View →
CID-114-FMI-13 Caterpillar CAT Electronic Control Module Caterpillar CID 114 FMI 13 - Axle Oil Pressure: Out of Calibration heavy-equipment Minor View →
253-16 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 253 FMI 16 - Fuel Injector (Cylinder 3) Data Valid But Above Normal Operating Range (Moderately Severe) heavy-equipment Minor View →
CID-64-FMI-5 Caterpillar CAT Electronic Control Module Caterpillar CID 64 FMI 5 - Engine Brake Solenoid #1: Current Below Normal, or Open Circuit heavy-equipment Major View →
281-18 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 281 FMI 18 - Transmission Speed Sensor Data Valid But Below Normal Operating Range (Moderately Severe) heavy-equipment Minor View →
CID-27-FMI-4 Caterpillar CAT Electronic Control Module Caterpillar CID 27 FMI 4 - Vehicle Speed: Voltage Below Normal, or Shorted to Low Source heavy-equipment Minor View →
291-8 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 291 FMI 8 - Transmission Temperature Sensor Abnormal Frequency/Pulse Width heavy-equipment Major View →
281-13 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 281 FMI 13 - Transmission Speed Sensor Out of Calibration heavy-equipment Minor View →
CID-120-FMI-0 Caterpillar CAT Electronic Control Module Caterpillar CID 120 FMI 0 - Implement Pump Pressure: Data Valid But Above Normal Operational Range heavy-equipment Minor View →
CID-3-FMI-5 Caterpillar CAT Electronic Control Module Caterpillar CID 3 FMI 5 - Engine Speed/Timing: Current Below Normal, or Open Circuit heavy-equipment Critical View →
CID-195-FMI-0 Caterpillar CAT Electronic Control Module Caterpillar CID 195 FMI 0 - Work Tool Cycle Count: Data Valid But Above Normal Operational Range heavy-equipment Minor View →
CID-195-FMI-2 Caterpillar CAT Electronic Control Module Caterpillar CID 195 FMI 2 - Work Tool Cycle Count: Data Erratic, Intermittent, or Incorrect heavy-equipment Minor View →
35-17 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 35 FMI 17 - Radiator Coolant Level Sensor Data Valid But Below Normal Operating Range (Least Severe) heavy-equipment Info View →
CID-30-FMI-1 Caterpillar CAT Electronic Control Module Caterpillar CID 30 FMI 1 - Transmission Oil Pressure: Data Valid But Below Normal Operational Range heavy-equipment Major View →
CID-117-FMI-4 Caterpillar CAT Electronic Control Module Caterpillar CID 117 FMI 4 - Swing Brake Oil Pressure: Voltage Below Normal, or Shorted to Low Source heavy-equipment Major View →
361-15 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 361 FMI 15 - Engine Oil Temperature (High) Data Valid But Above Normal Operating Range (Least Severe) heavy-equipment Info View →
CID-106-FMI-3 Caterpillar CAT Electronic Control Module Caterpillar CID 106 FMI 3 - Desired Fan Speed: Voltage Above Normal, or Shorted to High Source heavy-equipment Minor View →
451-16 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 451 FMI 16 - Air Filter Restriction (High) Data Valid But Above Normal Operating Range (Moderately Severe) heavy-equipment Minor View →
CID-123-FMI-3 Caterpillar CAT Electronic Control Module Caterpillar CID 123 FMI 3 - Charge Pump Pressure: Voltage Above Normal, or Shorted to High Source heavy-equipment Minor View →
CID-127-FMI-3 Caterpillar CAT Electronic Control Module Caterpillar CID 127 FMI 3 - Boom Cylinder Rod Pressure: Voltage Above Normal, or Shorted to High Source heavy-equipment Minor View →
CID-18-FMI-4 Caterpillar CAT Electronic Control Module Caterpillar CID 18 FMI 4 - Fuel Injector #4: Voltage Below Normal, or Shorted to Low Source heavy-equipment Major View →
CID-137-FMI-3 Caterpillar CAT Electronic Control Module Caterpillar CID 137 FMI 3 - Bucket Position Sensor: Voltage Above Normal, or Shorted to High Source heavy-equipment Minor View →
41-3 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 41 FMI 3 - Air Inlet Heater Relay Voltage Above Normal/Shorted High heavy-equipment Major View →
461-8 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 461 FMI 8 - Fuel Water Separator Sensor Abnormal Frequency/Pulse Width heavy-equipment Major View →
451-17 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 451 FMI 17 - Air Filter Restriction (High) Data Valid But Below Normal Operating Range (Least Severe) heavy-equipment Info View →
CID-189-FMI-8 Caterpillar CAT Electronic Control Module Caterpillar CID 189 FMI 8 - Work Tool Pump Flow: Abnormal Frequency, Pulse Width, or Period heavy-equipment Minor View →
321-5 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 321 FMI 5 - Brake Oil Pressure (Low) Current Below Normal/Open Circuit heavy-equipment Major View →
CID-100-FMI-1 Caterpillar CAT Electronic Control Module Caterpillar CID 100 FMI 1 - Average Fuel Rate: Data Valid But Below Normal Operational Range heavy-equipment Minor View →
41-8 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 41 FMI 8 - Air Inlet Heater Relay Abnormal Frequency/Pulse Width heavy-equipment Major View →
172-18 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 172 FMI 18 - Fuel Injection Actuation Pressure (High) Data Valid But Below Normal Operating Range (Moderately Severe) heavy-equipment Minor View →