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
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 →
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 →
CID-74-FMI-6 Caterpillar CAT Electronic Control Module Caterpillar CID 74 FMI 6 - Desired Throttle Position: Current Above Normal, or Grounded Circuit heavy-equipment Major View →
200-1 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 200 FMI 1 - Engine Oil Pressure (Low) Data Valid But Below Normal Range heavy-equipment Major View →
2-8 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 2 FMI 8 - Engine Speed-Timing Sensor Abnormal Frequency/Pulse Width heavy-equipment Major View →
CID-95-FMI-3 Caterpillar CAT Electronic Control Module Caterpillar CID 95 FMI 3 - Total Fuel Used: Voltage Above Normal, or Shorted to High Source heavy-equipment Minor View →
CID-78-FMI-5 Caterpillar CAT Electronic Control Module Caterpillar CID 78 FMI 5 - Injection Actuation Pressure Control Valve: Current Below Normal, or Open Circuit heavy-equipment Major View →
CID-173-FMI-5 Caterpillar CAT Electronic Control Module Caterpillar CID 173 FMI 5 - Auto Dig Switch: Current Below Normal, or Open Circuit heavy-equipment Minor View →
CID-171-FMI-5 Caterpillar CAT Electronic Control Module Caterpillar CID 171 FMI 5 - High Speed Travel Switch: Current Below Normal, or Open Circuit heavy-equipment Minor View →
CID-168-FMI-5 Caterpillar CAT Electronic Control Module Caterpillar CID 168 FMI 5 - Lifting Mode Switch: Current Below Normal, or Open Circuit heavy-equipment Minor View →
421-1 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 421 FMI 1 - Transmission Oil Level (Low) Data Valid But Below Normal Range heavy-equipment Major View →
35-16 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 35 FMI 16 - Radiator Coolant Level Sensor Data Valid But Above Normal Operating Range (Moderately Severe) heavy-equipment Minor View →
CID-28-FMI-4 Caterpillar CAT Electronic Control Module Caterpillar CID 28 FMI 4 - Transmission Output Speed: Voltage Below Normal, or Shorted to Low Source heavy-equipment Major View →
CID-153-FMI-6 Caterpillar CAT Electronic Control Module Caterpillar CID 153 FMI 6 - Radio Signal Strength: Current Above Normal, or Grounded Circuit heavy-equipment Minor View →
CID-25-FMI-0 Caterpillar CAT Electronic Control Module Caterpillar CID 25 FMI 0 - Sensor Supply Voltage 5V: Data Valid But Above Normal Operational Range heavy-equipment Major View →
CID-101-FMI-3 Caterpillar CAT Electronic Control Module Caterpillar CID 101 FMI 3 - Percent Engine Load: Voltage Above Normal, or Shorted to High Source heavy-equipment Minor View →
3-17 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 3 FMI 17 - Injection Actuation Pressure Sensor Data Valid But Below Normal Operating Range (Least Severe) heavy-equipment Info View →
254-0 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 254 FMI 0 - Fuel Injector (Cylinder 4) Data Valid But Above Normal Range heavy-equipment Major View →
CID-51-FMI-5 Caterpillar CAT Electronic Control Module Caterpillar CID 51 FMI 5 - Diesel Particulate Filter Regeneration: Current Below Normal, or Open Circuit heavy-equipment Major View →
5-4 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 5 FMI 4 - Inlet Manifold Air Temperature Sensor Voltage Below Normal/Shorted Low heavy-equipment Major View →
471-5 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 471 FMI 5 - Engine Over-speed Protection Current Below Normal/Open Circuit heavy-equipment Major View →
441-17 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 441 FMI 17 - Engine Warning Indicator Circuit Data Valid But Below Normal Operating Range (Least Severe) heavy-equipment Info View →
38-15 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 38 FMI 15 - Fuel Temperature Sensor Data Valid But Above Normal Operating Range (Least Severe) heavy-equipment Info View →
61-4 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 61 FMI 4 - Alternator (Field Current) Voltage Below Normal/Shorted Low heavy-equipment Major View →
CID-166-FMI-5 Caterpillar CAT Electronic Control Module Caterpillar CID 166 FMI 5 - Work Mode Switch: Current Below Normal, or Open Circuit heavy-equipment Minor View →
CID-107-FMI-2 Caterpillar CAT Electronic Control Module Caterpillar CID 107 FMI 2 - Fan Control Solenoid: Data Erratic, Intermittent, or Incorrect heavy-equipment Major View →
4-6 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 4 FMI 6 - Engine Coolant Temperature Sensor Current Above Normal/Grounded Circuit heavy-equipment Major View →
CID-141-FMI-3 Caterpillar CAT Electronic Control Module Caterpillar CID 141 FMI 3 - Boom Angle: Voltage Above Normal, or Shorted to High Source heavy-equipment Minor View →
421-2 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 421 FMI 2 - Transmission Oil Level (Low) Data Erratic/Intermittent heavy-equipment Minor View →
CID-165-FMI-3 Caterpillar CAT Electronic Control Module Caterpillar CID 165 FMI 3 - Auto Idle Switch: Voltage Above Normal, or Shorted to High Source heavy-equipment Minor View →
291-18 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 291 FMI 18 - Transmission Temperature Sensor Data Valid But Below Normal Operating Range (Moderately Severe) heavy-equipment Minor View →
70-3 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 70 FMI 3 - Injection Actuation Pressure Sensor (Open) Voltage Above Normal/Shorted High heavy-equipment Major View →
CID-95-FMI-0 Caterpillar CAT Electronic Control Module Caterpillar CID 95 FMI 0 - Total Fuel Used: Data Valid But Above Normal Operational Range heavy-equipment Minor View →
CID-46-FMI-1 Caterpillar CAT Electronic Control Module Caterpillar CID 46 FMI 1 - Turbocharger Compressor Inlet Temperature: Data Valid But Below Normal Operational Range heavy-equipment Major View →
CID-75-FMI-1 Caterpillar CAT Electronic Control Module Caterpillar CID 75 FMI 1 - Actual Throttle Position: Data Valid But Below Normal Operational Range heavy-equipment Major View →
CID-146-FMI-2 Caterpillar CAT Electronic Control Module Caterpillar CID 146 FMI 2 - Machine Roll Angle: Data Erratic, Intermittent, or Incorrect heavy-equipment Minor View →
CID-166-FMI-4 Caterpillar CAT Electronic Control Module Caterpillar CID 166 FMI 4 - Work Mode Switch: Voltage Below Normal, or Shorted to Low Source heavy-equipment Minor View →
CID-179-FMI-8 Caterpillar CAT Electronic Control Module Caterpillar CID 179 FMI 8 - Bucket Thumb Switch: Abnormal Frequency, Pulse Width, or Period heavy-equipment Minor View →
CID-98-FMI-4 Caterpillar CAT Electronic Control Module Caterpillar CID 98 FMI 4 - Trip Idle Fuel Used: Voltage Below Normal, or Shorted to Low Source heavy-equipment Minor View →
CID-39-FMI-6 Caterpillar CAT Electronic Control Module Caterpillar CID 39 FMI 6 - Glow Plug Relay: Current Above Normal, or Grounded Circuit heavy-equipment Major View →
CID-96-FMI-1 Caterpillar CAT Electronic Control Module Caterpillar CID 96 FMI 1 - Trip Fuel Used: Data Valid But Below Normal Operational Range heavy-equipment Minor View →
CID-63-FMI-5 Caterpillar CAT Electronic Control Module Caterpillar CID 63 FMI 5 - EGR Cooler Efficiency: Current Below Normal, or Open Circuit heavy-equipment Major View →
471-3 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 471 FMI 3 - Engine Over-speed Protection Voltage Above Normal/Shorted High heavy-equipment Major View →
52-17 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 52 FMI 17 - Injection Actuation Pressure Sensor (Rail) Data Valid But Below Normal Operating Range (Least Severe) heavy-equipment Info View →
CID-199-FMI-13 Caterpillar CAT Electronic Control Module Caterpillar CID 199 FMI 13 - Work Tool Diagnostic: Out of Calibration heavy-equipment Minor View →
321-0 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 321 FMI 0 - Brake Oil Pressure (Low) Data Valid But Above Normal Range heavy-equipment Major View →
5-15 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 5 FMI 15 - Inlet Manifold Air Temperature Sensor Data Valid But Above Normal Operating Range (Least Severe) heavy-equipment Info View →
51-13 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 51 FMI 13 - Engine Speed-Timing Sensor (Rack Position) Out of Calibration heavy-equipment Minor View →
261-13 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 261 FMI 13 - Fuel Pressure (High) Out of Calibration heavy-equipment Minor View →
11-0 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 11 FMI 0 - Throttle Position Sensor Data Valid But Above Normal Range heavy-equipment Major View →
CID-54-FMI-5 Caterpillar CAT Electronic Control Module Caterpillar CID 54 FMI 5 - SCR Catalyst Temperature: Current Below Normal, or Open Circuit heavy-equipment Major View →
227-2 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 227 FMI 2 - Injection Actuation Pressure (Low) Data Erratic/Intermittent heavy-equipment Minor View →
CID-65-FMI-1 Caterpillar CAT Electronic Control Module Caterpillar CID 65 FMI 1 - Engine Brake Solenoid #2: Data Valid But Below Normal Operational Range heavy-equipment Major View →
CID-106-FMI-4 Caterpillar CAT Electronic Control Module Caterpillar CID 106 FMI 4 - Desired Fan Speed: Voltage Below Normal, or Shorted to Low Source heavy-equipment Minor View →
CID-59-FMI-8 Caterpillar CAT Electronic Control Module Caterpillar CID 59 FMI 8 - DEF Injector: Abnormal Frequency, Pulse Width, or Period heavy-equipment Major View →
481-16 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 481 FMI 16 - Hydraulic Filter Restriction Switch Data Valid But Above Normal Operating Range (Moderately Severe) heavy-equipment Minor View →
361-8 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 361 FMI 8 - Engine Oil Temperature (High) Abnormal Frequency/Pulse Width heavy-equipment Major View →
CID-90-FMI-4 Caterpillar CAT Electronic Control Module Caterpillar CID 90 FMI 4 - Crankcase Breather Filter: Voltage Below Normal, or Shorted to Low Source heavy-equipment Minor View →
16-6 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 16 FMI 6 - Engine Oil Pressure Sensor Current Above Normal/Grounded Circuit heavy-equipment Major View →
CID-38-FMI-6 Caterpillar CAT Electronic Control Module Caterpillar CID 38 FMI 6 - Starter Relay: Current Above Normal, or Grounded Circuit heavy-equipment Major View →
CID-5-FMI-3 Caterpillar CAT Electronic Control Module Caterpillar CID 5 FMI 3 - Battery Voltage: Voltage Above Normal, or Shorted to High Source heavy-equipment Major View →
CID-63-FMI-4 Caterpillar CAT Electronic Control Module Caterpillar CID 63 FMI 4 - EGR Cooler Efficiency: Voltage Below Normal, or Shorted to Low Source heavy-equipment Major View →
CID-11-FMI-2 Caterpillar CAT Electronic Control Module Caterpillar CID 11 FMI 2 - Throttle Position: Data Erratic, Intermittent, or Incorrect heavy-equipment Major View →