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
37-5 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 37 FMI 5 - Crankcase Pressure Sensor Current Below Normal/Open Circuit heavy-equipment Major View →
281-5 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 281 FMI 5 - Transmission Speed Sensor Current Below Normal/Open Circuit heavy-equipment Major View →
461-5 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 461 FMI 5 - Fuel Water Separator Sensor Current Below Normal/Open Circuit heavy-equipment Major View →
20-18 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 20 FMI 18 - Injection Actuation Pressure Control Valve Data Valid But Below Normal Operating Range (Moderately Severe) heavy-equipment Minor View →
1-16 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 1 FMI 16 - Mechanical Engine Speed Sensor Data Valid But Above Normal Operating Range (Moderately Severe) heavy-equipment Minor View →
CID-49-FMI-13 Caterpillar CAT Electronic Control Module Caterpillar CID 49 FMI 13 - Exhaust Gas Temperature Bank 2: Out of Calibration heavy-equipment Major View →
CID-26-FMI-2 Caterpillar CAT Electronic Control Module Caterpillar CID 26 FMI 2 - Sensor Supply Voltage 8V: Data Erratic, Intermittent, or Incorrect heavy-equipment Major View →
261-6 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 261 FMI 6 - Fuel Pressure (High) Current Above Normal/Grounded Circuit heavy-equipment Major View →
172-0 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 172 FMI 0 - Fuel Injection Actuation Pressure (High) Data Valid But Above Normal Range heavy-equipment Major View →
CID-164-FMI-6 Caterpillar CAT Electronic Control Module Caterpillar CID 164 FMI 6 - Pedal Position #2: Current Above Normal, or Grounded Circuit heavy-equipment Minor View →
CID-191-FMI-5 Caterpillar CAT Electronic Control Module Caterpillar CID 191 FMI 5 - Work Tool Direction: Current Below Normal, or Open Circuit heavy-equipment Minor View →
CID-154-FMI-4 Caterpillar CAT Electronic Control Module Caterpillar CID 154 FMI 4 - Remote Shutdown Command: Voltage Below Normal, or Shorted to Low Source heavy-equipment Critical View →
CID-101-FMI-5 Caterpillar CAT Electronic Control Module Caterpillar CID 101 FMI 5 - Percent Engine Load: Current Below Normal, or Open Circuit heavy-equipment Minor View →
5-16 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 5 FMI 16 - Inlet Manifold Air Temperature Sensor Data Valid But Above Normal Operating Range (Moderately Severe) heavy-equipment Minor View →
254-15 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 254 FMI 15 - Fuel Injector (Cylinder 4) Data Valid But Above Normal Operating Range (Least Severe) heavy-equipment Info View →
CID-20-FMI-4 Caterpillar CAT Electronic Control Module Caterpillar CID 20 FMI 4 - Fuel Injector #6: Voltage Below Normal, or Shorted to Low Source heavy-equipment Major View →
93-1 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 93 FMI 1 - Fuel Injection Pump Solenoid Data Valid But Below Normal Range heavy-equipment Major View →
256-2 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 256 FMI 2 - Fuel Injector (Cylinder 6) Data Erratic/Intermittent heavy-equipment Minor View →
42-2 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 42 FMI 2 - Engine Oil Temperature Sensor Data Erratic/Intermittent heavy-equipment Minor View →
481-3 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 481 FMI 3 - Hydraulic Filter Restriction Switch Voltage Above Normal/Shorted High heavy-equipment Major View →
52-16 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 52 FMI 16 - Injection Actuation Pressure Sensor (Rail) Data Valid But Above Normal Operating Range (Moderately Severe) heavy-equipment Minor View →
CID-139-FMI-6 Caterpillar CAT Electronic Control Module Caterpillar CID 139 FMI 6 - Left Track Position Sensor: Current Above Normal, or Grounded Circuit heavy-equipment Minor View →
481-4 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 481 FMI 4 - Hydraulic Filter Restriction Switch Voltage Below Normal/Shorted Low heavy-equipment Major View →
CID-185-FMI-4 Caterpillar CAT Electronic Control Module Caterpillar CID 185 FMI 4 - Attachment Flow: Voltage Below Normal, or Shorted to Low Source heavy-equipment Minor View →
CID-131-FMI-3 Caterpillar CAT Electronic Control Module Caterpillar CID 131 FMI 3 - Bucket Cylinder Rod Pressure: Voltage Above Normal, or Shorted to High Source heavy-equipment Minor View →
27-16 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 27 FMI 16 - Atmospheric Pressure Sensor Data Valid But Above Normal Operating Range (Moderately Severe) heavy-equipment Minor View →
CID-120-FMI-2 Caterpillar CAT Electronic Control Module Caterpillar CID 120 FMI 2 - Implement Pump Pressure: Data Erratic, Intermittent, or Incorrect heavy-equipment Minor View →
71-18 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 71 FMI 18 - Fuel Injection Quantity Data Valid But Below Normal Operating Range (Moderately Severe) heavy-equipment Minor View →
111-3 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 111 FMI 3 - Battery Voltage Voltage Above Normal/Shorted High heavy-equipment Major View →
CID-93-FMI-5 Caterpillar CAT Electronic Control Module Caterpillar CID 93 FMI 5 - Trip Tattletale: Current Below Normal, or Open Circuit heavy-equipment Minor View →
4-0 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 4 FMI 0 - Engine Coolant Temperature Sensor Data Valid But Above Normal Range heavy-equipment Major View →
351-16 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 351 FMI 16 - Radiator Coolant Pressure Sensor Data Valid But Above Normal Operating Range (Moderately Severe) heavy-equipment Minor View →
190-16 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 190 FMI 16 - Engine Speed (RPM) Data Valid But Above Normal Operating Range (Moderately Severe) heavy-equipment Minor View →
CID-54-FMI-4 Caterpillar CAT Electronic Control Module Caterpillar CID 54 FMI 4 - SCR Catalyst Temperature: Voltage Below Normal, or Shorted to Low Source heavy-equipment Major View →
CID-19-FMI-8 Caterpillar CAT Electronic Control Module Caterpillar CID 19 FMI 8 - Fuel Injector #5: Abnormal Frequency, Pulse Width, or Period heavy-equipment Major View →
CID-106-FMI-1 Caterpillar CAT Electronic Control Module Caterpillar CID 106 FMI 1 - Desired Fan Speed: Data Valid But Below Normal Operational Range heavy-equipment Minor View →
CID-10-FMI-1 Caterpillar CAT Electronic Control Module Caterpillar CID 10 FMI 1 - Coolant Loss: Data Valid But Below Normal Operational Range heavy-equipment Major View →
CID-7-FMI-6 Caterpillar CAT Electronic Control Module Caterpillar CID 7 FMI 6 - Intake Manifold Air Temperature: Current Above Normal, or Grounded Circuit heavy-equipment Minor View →
6-13 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 6 FMI 13 - Engine Speed-Timing Sensor (Duty Cycle) Out of Calibration heavy-equipment Minor View →
190-5 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 190 FMI 5 - Engine Speed (RPM) Current Below Normal/Open Circuit heavy-equipment Major View →
CID-164-FMI-4 Caterpillar CAT Electronic Control Module Caterpillar CID 164 FMI 4 - Pedal Position #2: Voltage Below Normal, or Shorted to Low Source heavy-equipment Minor View →
481-1 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 481 FMI 1 - Hydraulic Filter Restriction Switch Data Valid But Below Normal Range heavy-equipment Major View →
CID-177-FMI-5 Caterpillar CAT Electronic Control Module Caterpillar CID 177 FMI 5 - Grapple Mode Switch: Current Below Normal, or Open Circuit heavy-equipment Minor View →
471-13 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 471 FMI 13 - Engine Over-speed Protection Out of Calibration heavy-equipment Minor View →
61-5 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 61 FMI 5 - Alternator (Field Current) Current Below Normal/Open Circuit heavy-equipment Major View →
CID-109-FMI-8 Caterpillar CAT Electronic Control Module Caterpillar CID 109 FMI 8 - Fuel Filter Differential Pressure: Abnormal Frequency, Pulse Width, or Period heavy-equipment Minor View →
CID-151-FMI-3 Caterpillar CAT Electronic Control Module Caterpillar CID 151 FMI 3 - GPS Heading: Voltage Above Normal, or Shorted to High Source heavy-equipment Minor View →
200-4 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 200 FMI 4 - Engine Oil Pressure (Low) Voltage Below Normal/Shorted Low heavy-equipment Major View →
78-0 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 78 FMI 0 - Engine Speed-Timing Sensor (Crankshaft) Data Valid But Above Normal Range heavy-equipment Major View →
341-4 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 341 FMI 4 - Brake Fluid Level Sensor Voltage Below Normal/Shorted Low heavy-equipment Major View →
CID-156-FMI-1 Caterpillar CAT Electronic Control Module Caterpillar CID 156 FMI 1 - Operator Presence: Data Valid But Below Normal Operational Range heavy-equipment Major View →
CID-186-FMI-1 Caterpillar CAT Electronic Control Module Caterpillar CID 186 FMI 1 - Attachment Speed: Data Valid But Below Normal Operational Range heavy-equipment Minor View →
CID-195-FMI-1 Caterpillar CAT Electronic Control Module Caterpillar CID 195 FMI 1 - Work Tool Cycle Count: Data Valid But Below Normal Operational Range heavy-equipment Minor View →
401-6 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 401 FMI 6 - Alternator Not Charging Current Above Normal/Grounded Circuit heavy-equipment Major View →
401-17 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 401 FMI 17 - Alternator Not Charging Data Valid But Below Normal Operating Range (Least Severe) heavy-equipment Info View →
261-1 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 261 FMI 1 - Fuel Pressure (High) Data Valid But Below Normal Range heavy-equipment Major View →
CID-153-FMI-4 Caterpillar CAT Electronic Control Module Caterpillar CID 153 FMI 4 - Radio Signal Strength: Voltage Below Normal, or Shorted to Low Source heavy-equipment Minor View →
CID-136-FMI-3 Caterpillar CAT Electronic Control Module Caterpillar CID 136 FMI 3 - Stick Position Sensor: Voltage Above Normal, or Shorted to High Source heavy-equipment Minor View →
CID-97-FMI-5 Caterpillar CAT Electronic Control Module Caterpillar CID 97 FMI 5 - Total Idle Fuel Used: Current Below Normal, or Open Circuit heavy-equipment Minor View →
253-18 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 253 FMI 18 - Fuel Injector (Cylinder 3) Data Valid But Below Normal Operating Range (Moderately Severe) heavy-equipment Minor View →
CID-30-FMI-4 Caterpillar CAT Electronic Control Module Caterpillar CID 30 FMI 4 - Transmission Oil Pressure: Voltage Below Normal, or Shorted to Low Source heavy-equipment Major View →
CID-40-FMI-2 Caterpillar CAT Electronic Control Module Caterpillar CID 40 FMI 2 - Engine Protection Override: Data Erratic, Intermittent, or Incorrect heavy-equipment Critical View →
CID-191-FMI-2 Caterpillar CAT Electronic Control Module Caterpillar CID 191 FMI 2 - Work Tool Direction: Data Erratic, Intermittent, or Incorrect heavy-equipment Minor View →
CID-134-FMI-8 Caterpillar CAT Electronic Control Module Caterpillar CID 134 FMI 8 - Right Travel Motor Pressure: Abnormal Frequency, Pulse Width, or Period heavy-equipment Minor View →
200-5 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 200 FMI 5 - Engine Oil Pressure (Low) Current Below Normal/Open Circuit heavy-equipment Major View →
CID-193-FMI-6 Caterpillar CAT Electronic Control Module Caterpillar CID 193 FMI 6 - Work Tool Position: Current Above Normal, or Grounded Circuit heavy-equipment Minor View →
CID-198-FMI-6 Caterpillar CAT Electronic Control Module Caterpillar CID 198 FMI 6 - Work Tool Filter Status: Current Above Normal, or Grounded Circuit heavy-equipment Minor View →
37-3 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 37 FMI 3 - Crankcase Pressure Sensor Voltage Above Normal/Shorted High heavy-equipment Major View →
491-2 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 491 FMI 2 - Transmission Filter Bypass Switch Data Erratic/Intermittent heavy-equipment Minor View →
CID-169-FMI-6 Caterpillar CAT Electronic Control Module Caterpillar CID 169 FMI 6 - Precision Mode Switch: Current Above Normal, or Grounded Circuit heavy-equipment Minor View →
CID-190-FMI-0 Caterpillar CAT Electronic Control Module Caterpillar CID 190 FMI 0 - Work Tool Speed: Data Valid But Above Normal Operational Range heavy-equipment Minor View →
411-0 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 411 FMI 0 - Radiator Coolant Level (Low) Data Valid But Above Normal Range heavy-equipment Major View →
321-4 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 321 FMI 4 - Brake Oil Pressure (Low) Voltage Below Normal/Shorted Low heavy-equipment Major View →
CID-73-FMI-6 Caterpillar CAT Electronic Control Module Caterpillar CID 73 FMI 6 - PTO Set Speed: Current Above Normal, or Grounded Circuit heavy-equipment Minor View →
35-6 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 35 FMI 6 - Radiator Coolant Level Sensor Current Above Normal/Grounded Circuit heavy-equipment Major View →
55-13 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 55 FMI 13 - Injection Actuation Pressure Control Valve (Current) Out of Calibration heavy-equipment Minor View →
51-2 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 51 FMI 2 - Engine Speed-Timing Sensor (Rack Position) Data Erratic/Intermittent heavy-equipment Minor View →