Heavy Equipment Fault Codes

1,572 codes
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All Caterpillar (1,377) Komatsu (58) John Deere (53) Volvo (44) Doosan (22) Case (9) JCB (9)
Code Brand Model Error / Alarm Type Severity Action
256-13 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 256 FMI 13 - Fuel Injector (Cylinder 6) Out of Calibration heavy-equipment Minor View →
37-16 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 37 FMI 16 - Crankcase Pressure Sensor Data Valid But Above Normal Operating Range (Moderately Severe) heavy-equipment Minor View →
421-15 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 421 FMI 15 - Transmission Oil Level (Low) Data Valid But Above Normal Operating Range (Least Severe) heavy-equipment Info View →
52-3 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 52 FMI 3 - Injection Actuation Pressure Sensor (Rail) Voltage Above Normal/Shorted High heavy-equipment Major View →
44-5 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 44 FMI 5 - Engine Warning Indicator Current Below Normal/Open Circuit heavy-equipment Major View →
CID-59-FMI-4 Caterpillar CAT Electronic Control Module Caterpillar CID 59 FMI 4 - DEF Injector: Voltage Below Normal, or Shorted to Low Source heavy-equipment Major View →
425-1 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 425 FMI 1 - Hydraulic Oil Level (Low) Data Valid But Below Normal Range heavy-equipment Major View →
CID-193-FMI-8 Caterpillar CAT Electronic Control Module Caterpillar CID 193 FMI 8 - Work Tool Position: Abnormal Frequency, Pulse Width, or Period heavy-equipment Minor View →
CID-58-FMI-3 Caterpillar CAT Electronic Control Module Caterpillar CID 58 FMI 3 - DEF Pump: Voltage Above Normal, or Shorted to High Source heavy-equipment Major View →
491-13 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 491 FMI 13 - Transmission Filter Bypass Switch Out of Calibration heavy-equipment Minor View →
52-2 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 52 FMI 2 - Injection Actuation Pressure Sensor (Rail) Data Erratic/Intermittent heavy-equipment Minor View →
CID-69-FMI-13 Caterpillar CAT Electronic Control Module Caterpillar CID 69 FMI 13 - Fuel Level: Out of Calibration heavy-equipment Minor View →
CID-35-FMI-0 Caterpillar CAT Electronic Control Module Caterpillar CID 35 FMI 0 - Hydraulic Fan Solenoid: Data Valid But Above Normal Operational Range heavy-equipment Major View →
CID-186-FMI-4 Caterpillar CAT Electronic Control Module Caterpillar CID 186 FMI 4 - Attachment Speed: Voltage Below Normal, or Shorted to Low Source heavy-equipment Minor View →
CID-56-FMI-4 Caterpillar CAT Electronic Control Module Caterpillar CID 56 FMI 4 - DEF Tank Level: Voltage Below Normal, or Shorted to Low Source heavy-equipment Major View →
241-2 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 241 FMI 2 - Engine Speed-Timing Sensor (Camshaft) Data Erratic/Intermittent heavy-equipment Minor View →
82-3 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 82 FMI 3 - Throttle Position Sensor (PWM) Voltage Above Normal/Shorted High heavy-equipment Major View →
425-13 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 425 FMI 13 - Hydraulic Oil Level (Low) Out of Calibration heavy-equipment Minor View →
CID-38-FMI-4 Caterpillar CAT Electronic Control Module Caterpillar CID 38 FMI 4 - Starter Relay: Voltage Below Normal, or Shorted to Low Source heavy-equipment Major View →
CID-145-FMI-4 Caterpillar CAT Electronic Control Module Caterpillar CID 145 FMI 4 - Machine Pitch Angle: Voltage Below Normal, or Shorted to Low Source heavy-equipment Minor View →
CID-34-FMI-6 Caterpillar CAT Electronic Control Module Caterpillar CID 34 FMI 6 - Hydraulic Oil Filter: Current Above Normal, or Grounded Circuit heavy-equipment Minor View →
441-16 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 441 FMI 16 - Engine Warning Indicator Circuit Data Valid But Above Normal Operating Range (Moderately Severe) heavy-equipment Minor View →
441-4 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 441 FMI 4 - Engine Warning Indicator Circuit Voltage Below Normal/Shorted Low heavy-equipment Major View →
CID-12-FMI-6 Caterpillar CAT Electronic Control Module Caterpillar CID 12 FMI 6 - Boost Pressure: Current Above Normal, or Grounded Circuit heavy-equipment Major View →
CID-183-FMI-5 Caterpillar CAT Electronic Control Module Caterpillar CID 183 FMI 5 - Attachment Identification: Current Below Normal, or Open Circuit heavy-equipment Minor View →
CID-133-FMI-6 Caterpillar CAT Electronic Control Module Caterpillar CID 133 FMI 6 - Left Travel Motor Pressure: Current Above Normal, or Grounded Circuit heavy-equipment Minor View →
251-2 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 251 FMI 2 - Fuel Injector (Cylinder 1) Data Erratic/Intermittent heavy-equipment Minor View →
291-5 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 291 FMI 5 - Transmission Temperature Sensor Current Below Normal/Open Circuit heavy-equipment Major View →
CID-165-FMI-2 Caterpillar CAT Electronic Control Module Caterpillar CID 165 FMI 2 - Auto Idle Switch: Data Erratic, Intermittent, or Incorrect heavy-equipment Minor View →
241-13 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 241 FMI 13 - Engine Speed-Timing Sensor (Camshaft) Out of Calibration heavy-equipment Minor View →
CID-184-FMI-13 Caterpillar CAT Electronic Control Module Caterpillar CID 184 FMI 13 - Attachment Pressure: Out of Calibration heavy-equipment Minor View →
CID-28-FMI-6 Caterpillar CAT Electronic Control Module Caterpillar CID 28 FMI 6 - Transmission Output Speed: Current Above Normal, or Grounded Circuit heavy-equipment Major View →
CID-144-FMI-13 Caterpillar CAT Electronic Control Module Caterpillar CID 144 FMI 13 - Swing Angle: Out of Calibration heavy-equipment Minor View →
78-13 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 78 FMI 13 - Engine Speed-Timing Sensor (Crankshaft) Out of Calibration heavy-equipment Minor View →
68-8 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 68 FMI 8 - Turbocharger Compressor Outlet Temperature Abnormal Frequency/Pulse Width heavy-equipment Major View →
CID-192-FMI-5 Caterpillar CAT Electronic Control Module Caterpillar CID 192 FMI 5 - Work Tool Angle: Current Below Normal, or Open Circuit heavy-equipment Minor View →
CID-138-FMI-5 Caterpillar CAT Electronic Control Module Caterpillar CID 138 FMI 5 - Swing Position Sensor: Current Below Normal, or Open Circuit heavy-equipment Minor View →
CID-190-FMI-2 Caterpillar CAT Electronic Control Module Caterpillar CID 190 FMI 2 - Work Tool Speed: Data Erratic, Intermittent, or Incorrect heavy-equipment Minor View →
11-13 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 11 FMI 13 - Throttle Position Sensor Out of Calibration heavy-equipment Minor View →
93-15 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 93 FMI 15 - Fuel Injection Pump Solenoid Data Valid But Above Normal Operating Range (Least Severe) heavy-equipment Info View →
CID-1-FMI-1 Caterpillar CAT Electronic Control Module Caterpillar CID 1 FMI 1 - Engine Oil Pressure: Data Valid But Below Normal Operational Range heavy-equipment Major View →
41-15 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 41 FMI 15 - Air Inlet Heater Relay Data Valid But Above Normal Operating Range (Least Severe) heavy-equipment Info View →
252-18 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 252 FMI 18 - Fuel Injector (Cylinder 2) Data Valid But Below Normal Operating Range (Moderately Severe) heavy-equipment Minor View →
70-4 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 70 FMI 4 - Injection Actuation Pressure Sensor (Open) Voltage Below Normal/Shorted Low heavy-equipment Major View →
CID-165-FMI-0 Caterpillar CAT Electronic Control Module Caterpillar CID 165 FMI 0 - Auto Idle Switch: Data Valid But Above Normal Operational Range heavy-equipment Minor View →
CID-188-FMI-5 Caterpillar CAT Electronic Control Module Caterpillar CID 188 FMI 5 - Work Tool Pump Pressure: Current Below Normal, or Open Circuit heavy-equipment Minor View →
CID-136-FMI-2 Caterpillar CAT Electronic Control Module Caterpillar CID 136 FMI 2 - Stick Position Sensor: Data Erratic, Intermittent, or Incorrect heavy-equipment Minor View →
CID-2-FMI-4 Caterpillar CAT Electronic Control Module Caterpillar CID 2 FMI 4 - Engine Coolant Temperature: Voltage Below Normal, or Shorted to Low Source heavy-equipment Major View →
481-15 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 481 FMI 15 - Hydraulic Filter Restriction Switch Data Valid But Above Normal Operating Range (Least Severe) heavy-equipment Info View →
CID-87-FMI-4 Caterpillar CAT Electronic Control Module Caterpillar CID 87 FMI 4 - Cylinder Cutout #4: Voltage Below Normal, or Shorted to Low Source heavy-equipment Major View →
70-18 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 70 FMI 18 - Injection Actuation Pressure Sensor (Open) Data Valid But Below Normal Operating Range (Moderately Severe) heavy-equipment Minor View →
CID-32-FMI-5 Caterpillar CAT Electronic Control Module Caterpillar CID 32 FMI 5 - Brake Oil Pressure: Current Below Normal, or Open Circuit heavy-equipment Major View →
CID-131-FMI-2 Caterpillar CAT Electronic Control Module Caterpillar CID 131 FMI 2 - Bucket Cylinder Rod Pressure: Data Erratic, Intermittent, or Incorrect heavy-equipment Minor View →
CID-24-FMI-6 Caterpillar CAT Electronic Control Module Caterpillar CID 24 FMI 6 - CAN Data Link: Current Above Normal, or Grounded Circuit heavy-equipment Major View →
CID-169-FMI-5 Caterpillar CAT Electronic Control Module Caterpillar CID 169 FMI 5 - Precision Mode Switch: Current Below Normal, or Open Circuit heavy-equipment Minor View →
CID-162-FMI-5 Caterpillar CAT Electronic Control Module Caterpillar CID 162 FMI 5 - Joystick Position #4: Current Below Normal, or Open Circuit heavy-equipment Minor View →
27-13 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 27 FMI 13 - Atmospheric Pressure Sensor Out of Calibration heavy-equipment Minor View →
CID-34-FMI-4 Caterpillar CAT Electronic Control Module Caterpillar CID 34 FMI 4 - Hydraulic Oil Filter: Voltage Below Normal, or Shorted to Low Source heavy-equipment Minor View →
CID-143-FMI-5 Caterpillar CAT Electronic Control Module Caterpillar CID 143 FMI 5 - Bucket Angle: Current Below Normal, or Open Circuit heavy-equipment Minor View →
CID-30-FMI-3 Caterpillar CAT Electronic Control Module Caterpillar CID 30 FMI 3 - Transmission Oil Pressure: Voltage Above Normal, or Shorted to High Source heavy-equipment Major View →
CID-192-FMI-6 Caterpillar CAT Electronic Control Module Caterpillar CID 192 FMI 6 - Work Tool Angle: Current Above Normal, or Grounded Circuit heavy-equipment Minor View →
38-4 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 38 FMI 4 - Fuel Temperature Sensor Voltage Below Normal/Shorted Low heavy-equipment Major View →
CID-100-FMI-2 Caterpillar CAT Electronic Control Module Caterpillar CID 100 FMI 2 - Average Fuel Rate: Data Erratic, Intermittent, or Incorrect heavy-equipment Minor View →
37-4 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 37 FMI 4 - Crankcase Pressure Sensor Voltage Below Normal/Shorted Low heavy-equipment Major View →
CID-12-FMI-3 Caterpillar CAT Electronic Control Module Caterpillar CID 12 FMI 3 - Boost Pressure: Voltage Above Normal, or Shorted to High Source heavy-equipment Major View →
281-0 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 281 FMI 0 - Transmission Speed Sensor Data Valid But Above Normal Range heavy-equipment Major View →
71-8 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 71 FMI 8 - Fuel Injection Quantity Abnormal Frequency/Pulse Width heavy-equipment Major View →
2-15 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 2 FMI 15 - Engine Speed-Timing Sensor Data Valid But Above Normal Operating Range (Least Severe) heavy-equipment Info View →
27-2 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 27 FMI 2 - Atmospheric Pressure Sensor Data Erratic/Intermittent heavy-equipment Minor View →
35-1 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 35 FMI 1 - Radiator Coolant Level Sensor Data Valid But Below Normal Range heavy-equipment Major View →
3-1 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 3 FMI 1 - Injection Actuation Pressure Sensor Data Valid But Below Normal Range heavy-equipment Major View →
314-8 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 314 FMI 8 - Hydraulic Oil Filter Bypass Switch Abnormal Frequency/Pulse Width heavy-equipment Major View →
CID-27-FMI-5 Caterpillar CAT Electronic Control Module Caterpillar CID 27 FMI 5 - Vehicle Speed: Current Below Normal, or Open Circuit heavy-equipment Minor View →
451-0 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 451 FMI 0 - Air Filter Restriction (High) Data Valid But Above Normal Range heavy-equipment Major View →
CID-6-FMI-5 Caterpillar CAT Electronic Control Module Caterpillar CID 6 FMI 5 - Engine Oil Temperature: Current Below Normal, or Open Circuit heavy-equipment Major View →
91-3 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 91 FMI 3 - Injection Actuation Pressure Control Valve (Open) Voltage Above Normal/Shorted High heavy-equipment Major View →
CID-56-FMI-1 Caterpillar CAT Electronic Control Module Caterpillar CID 56 FMI 1 - DEF Tank Level: Data Valid But Below Normal Operational Range heavy-equipment Major View →