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-51-FMI-1 Caterpillar CAT Electronic Control Module Caterpillar CID 51 FMI 1 - Diesel Particulate Filter Regeneration: Data Valid But Below Normal Operational Range heavy-equipment Major View →
CID-68-FMI-6 Caterpillar CAT Electronic Control Module Caterpillar CID 68 FMI 6 - Coolant Level: Current Above Normal, or Grounded Circuit heavy-equipment Major View →
CID-105-FMI-0 Caterpillar CAT Electronic Control Module Caterpillar CID 105 FMI 0 - Fan Speed: Data Valid But Above Normal Operational Range heavy-equipment Minor View →
5-0 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 5 FMI 0 - Inlet Manifold Air Temperature Sensor Data Valid But Above Normal Range heavy-equipment Major View →
425-0 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 425 FMI 0 - Hydraulic Oil Level (Low) Data Valid But Above Normal Range heavy-equipment Major View →
491-3 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 491 FMI 3 - Transmission Filter Bypass Switch Voltage Above Normal/Shorted High heavy-equipment Major View →
CID-61-FMI-2 Caterpillar CAT Electronic Control Module Caterpillar CID 61 FMI 2 - EGR Temperature: Data Erratic, Intermittent, or Incorrect heavy-equipment Major View →
5-18 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 5 FMI 18 - Inlet Manifold Air Temperature Sensor Data Valid But Below Normal Operating Range (Moderately Severe) heavy-equipment Minor View →
CID-80-FMI-2 Caterpillar CAT Electronic Control Module Caterpillar CID 80 FMI 2 - Camshaft Position Sensor: Data Erratic, Intermittent, or Incorrect heavy-equipment Critical View →
CID-121-FMI-1 Caterpillar CAT Electronic Control Module Caterpillar CID 121 FMI 1 - Steering Pump Pressure: Data Valid But Below Normal Operational Range heavy-equipment Minor View →
CID-188-FMI-8 Caterpillar CAT Electronic Control Module Caterpillar CID 188 FMI 8 - Work Tool Pump Pressure: Abnormal Frequency, Pulse Width, or Period heavy-equipment Minor View →
CID-147-FMI-3 Caterpillar CAT Electronic Control Module Caterpillar CID 147 FMI 3 - GPS Position Latitude: Voltage Above Normal, or Shorted to High Source heavy-equipment Minor View →
CID-88-FMI-5 Caterpillar CAT Electronic Control Module Caterpillar CID 88 FMI 5 - Cylinder Cutout #5: Current Below Normal, or Open Circuit heavy-equipment Major View →
1-3 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 1 FMI 3 - Mechanical Engine Speed Sensor Voltage Above Normal/Shorted High heavy-equipment Major View →
CID-173-FMI-4 Caterpillar CAT Electronic Control Module Caterpillar CID 173 FMI 4 - Auto Dig Switch: Voltage Below Normal, or Shorted to Low Source heavy-equipment Minor View →
5-5 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 5 FMI 5 - Inlet Manifold Air Temperature Sensor Current Below Normal/Open Circuit heavy-equipment Major View →
CID-104-FMI-8 Caterpillar CAT Electronic Control Module Caterpillar CID 104 FMI 8 - Actual Engine Torque: Abnormal Frequency, Pulse Width, or Period heavy-equipment Minor View →
261-5 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 261 FMI 5 - Fuel Pressure (High) Current Below Normal/Open Circuit heavy-equipment Major View →
381-18 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 381 FMI 18 - Engine Air Filter Restriction Switch Data Valid But Below Normal Operating Range (Moderately Severe) heavy-equipment Minor View →
CID-109-FMI-5 Caterpillar CAT Electronic Control Module Caterpillar CID 109 FMI 5 - Fuel Filter Differential Pressure: Current Below Normal, or Open Circuit heavy-equipment Minor View →
CID-12-FMI-4 Caterpillar CAT Electronic Control Module Caterpillar CID 12 FMI 4 - Boost Pressure: Voltage Below Normal, or Shorted to Low Source heavy-equipment Major View →
381-13 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 381 FMI 13 - Engine Air Filter Restriction Switch Out of Calibration heavy-equipment Minor View →
371-2 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 371 FMI 2 - Fuel Filter Differential Pressure Switch Data Erratic/Intermittent heavy-equipment Minor View →
CID-90-FMI-2 Caterpillar CAT Electronic Control Module Caterpillar CID 90 FMI 2 - Crankcase Breather Filter: Data Erratic, Intermittent, or Incorrect heavy-equipment Minor View →
CID-176-FMI-5 Caterpillar CAT Electronic Control Module Caterpillar CID 176 FMI 5 - Shear Mode Switch: Current Below Normal, or Open Circuit heavy-equipment Minor View →
94-2 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 94 FMI 2 - Engine Speed-Timing Sensor (Injection Pump) Data Erratic/Intermittent heavy-equipment Minor View →
CID-104-FMI-6 Caterpillar CAT Electronic Control Module Caterpillar CID 104 FMI 6 - Actual Engine Torque: Current Above Normal, or Grounded Circuit heavy-equipment Minor View →
CID-148-FMI-8 Caterpillar CAT Electronic Control Module Caterpillar CID 148 FMI 8 - GPS Position Longitude: Abnormal Frequency, Pulse Width, or Period heavy-equipment Minor View →
CID-59-FMI-5 Caterpillar CAT Electronic Control Module Caterpillar CID 59 FMI 5 - DEF Injector: Current Below Normal, or Open Circuit heavy-equipment Major View →
415-18 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 415 FMI 18 - Engine Oil Level (Low) Data Valid But Below Normal Operating Range (Moderately Severe) heavy-equipment Minor View →
254-1 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 254 FMI 1 - Fuel Injector (Cylinder 4) Data Valid But Below Normal Range heavy-equipment Major View →
CID-156-FMI-5 Caterpillar CAT Electronic Control Module Caterpillar CID 156 FMI 5 - Operator Presence: Current Below Normal, or Open Circuit heavy-equipment Major View →
291-2 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 291 FMI 2 - Transmission Temperature Sensor Data Erratic/Intermittent heavy-equipment Minor View →
100-3 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 100 FMI 3 - Engine Controller (ECM) Power Voltage Above Normal/Shorted High heavy-equipment Major View →
35-3 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 35 FMI 3 - Radiator Coolant Level Sensor Voltage Above Normal/Shorted High heavy-equipment Major View →
200-6 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 200 FMI 6 - Engine Oil Pressure (Low) Current Above Normal/Grounded Circuit heavy-equipment Major View →
17-0 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 17 FMI 0 - Alternator (Battery Voltage) Data Valid But Above Normal Range heavy-equipment Major View →
3-15 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 3 FMI 15 - Injection Actuation Pressure Sensor Data Valid But Above Normal Operating Range (Least Severe) heavy-equipment Info View →
254-16 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 254 FMI 16 - Fuel Injector (Cylinder 4) Data Valid But Above Normal Operating Range (Moderately Severe) heavy-equipment Minor View →
CID-34-FMI-8 Caterpillar CAT Electronic Control Module Caterpillar CID 34 FMI 8 - Hydraulic Oil Filter: Abnormal Frequency, Pulse Width, or Period heavy-equipment Minor View →
16-8 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 16 FMI 8 - Engine Oil Pressure Sensor Abnormal Frequency/Pulse Width heavy-equipment Major View →
256-0 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 256 FMI 0 - Fuel Injector (Cylinder 6) Data Valid But Above Normal Range heavy-equipment Major View →
17-18 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 17 FMI 18 - Alternator (Battery Voltage) Data Valid But Below Normal Operating Range (Moderately Severe) heavy-equipment Minor View →
94-15 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 94 FMI 15 - Engine Speed-Timing Sensor (Injection Pump) Data Valid But Above Normal Operating Range (Least Severe) heavy-equipment Info View →
261-16 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 261 FMI 16 - Fuel Pressure (High) Data Valid But Above Normal Operating Range (Moderately Severe) heavy-equipment Minor View →
11-5 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 11 FMI 5 - Throttle Position Sensor Current Below Normal/Open Circuit heavy-equipment Major View →
27-3 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 27 FMI 3 - Atmospheric Pressure Sensor Voltage Above Normal/Shorted High heavy-equipment Major View →
CID-85-FMI-3 Caterpillar CAT Electronic Control Module Caterpillar CID 85 FMI 3 - Cylinder Cutout #2: Voltage Above Normal, or Shorted to High Source heavy-equipment Major View →
10-13 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 10 FMI 13 - Fuel Pressure Sensor Out of Calibration heavy-equipment Minor View →
CID-179-FMI-6 Caterpillar CAT Electronic Control Module Caterpillar CID 179 FMI 6 - Bucket Thumb Switch: Current Above Normal, or Grounded Circuit heavy-equipment Minor View →
411-2 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 411 FMI 2 - Radiator Coolant Level (Low) Data Erratic/Intermittent heavy-equipment Minor View →
CID-91-FMI-5 Caterpillar CAT Electronic Control Module Caterpillar CID 91 FMI 5 - Engine Serial Number: Current Below Normal, or Open Circuit heavy-equipment Major View →
421-18 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 421 FMI 18 - Transmission Oil Level (Low) Data Valid But Below Normal Operating Range (Moderately Severe) heavy-equipment Minor View →
CID-37-FMI-3 Caterpillar CAT Electronic Control Module Caterpillar CID 37 FMI 3 - Alternator Output: Voltage Above Normal, or Shorted to High Source heavy-equipment Major View →
CID-182-FMI-2 Caterpillar CAT Electronic Control Module Caterpillar CID 182 FMI 2 - Auxiliary Hydraulic Flow: Data Erratic, Intermittent, or Incorrect heavy-equipment Minor View →
55-16 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 55 FMI 16 - Injection Actuation Pressure Control Valve (Current) Data Valid But Above Normal Operating Range (Moderately Severe) heavy-equipment Minor View →
251-0 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 251 FMI 0 - Fuel Injector (Cylinder 1) Data Valid But Above Normal Range heavy-equipment Major View →
37-6 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 37 FMI 6 - Crankcase Pressure Sensor Current Above Normal/Grounded Circuit heavy-equipment Major View →
CID-151-FMI-2 Caterpillar CAT Electronic Control Module Caterpillar CID 151 FMI 2 - GPS Heading: Data Erratic, Intermittent, or Incorrect heavy-equipment Minor View →
31-0 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 31 FMI 0 - Engine Speed-Timing Sensor (Secondary) Data Valid But Above Normal Range heavy-equipment Major View →
252-5 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 252 FMI 5 - Fuel Injector (Cylinder 2) Current Below Normal/Open Circuit heavy-equipment Major View →
CID-71-FMI-1 Caterpillar CAT Electronic Control Module Caterpillar CID 71 FMI 1 - Idle Time: Data Valid But Below Normal Operational Range heavy-equipment Minor View →
461-18 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 461 FMI 18 - Fuel Water Separator Sensor Data Valid But Below Normal Operating Range (Moderately Severe) heavy-equipment Minor View →
CID-9-FMI-8 Caterpillar CAT Electronic Control Module Caterpillar CID 9 FMI 8 - Atmospheric Pressure: Abnormal Frequency, Pulse Width, or Period heavy-equipment Minor View →
CID-194-FMI-13 Caterpillar CAT Electronic Control Module Caterpillar CID 194 FMI 13 - Work Tool Load: Out of Calibration heavy-equipment Minor View →
111-5 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 111 FMI 5 - Battery Voltage Current Below Normal/Open Circuit heavy-equipment Major View →
227-8 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 227 FMI 8 - Injection Actuation Pressure (Low) Abnormal Frequency/Pulse Width heavy-equipment Major View →
CID-126-FMI-1 Caterpillar CAT Electronic Control Module Caterpillar CID 126 FMI 1 - Boom Cylinder Head Pressure: Data Valid But Below Normal Operational Range heavy-equipment Minor View →
CID-4-FMI-13 Caterpillar CAT Electronic Control Module Caterpillar CID 4 FMI 13 - Fuel Pressure: Out of Calibration heavy-equipment Major View →
361-0 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 361 FMI 0 - Engine Oil Temperature (High) Data Valid But Above Normal Range heavy-equipment Major View →
91-13 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 91 FMI 13 - Injection Actuation Pressure Control Valve (Open) Out of Calibration heavy-equipment Minor View →
CID-196-FMI-1 Caterpillar CAT Electronic Control Module Caterpillar CID 196 FMI 1 - Work Tool Hour Meter: Data Valid But Below Normal Operational Range heavy-equipment Minor View →
256-6 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 256 FMI 6 - Fuel Injector (Cylinder 6) Current Above Normal/Grounded Circuit heavy-equipment Major View →
CID-118-FMI-5 Caterpillar CAT Electronic Control Module Caterpillar CID 118 FMI 5 - Service Brake Oil Pressure: Current Below Normal, or Open Circuit heavy-equipment Major View →
55-4 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 55 FMI 4 - Injection Actuation Pressure Control Valve (Current) Voltage Below Normal/Shorted Low heavy-equipment Major View →
CID-172-FMI-4 Caterpillar CAT Electronic Control Module Caterpillar CID 172 FMI 4 - Low Speed Travel Switch: Voltage Below Normal, or Shorted to Low Source heavy-equipment Minor View →
CID-82-FMI-5 Caterpillar CAT Electronic Control Module Caterpillar CID 82 FMI 5 - Fuel Injection Quantity: Current Below Normal, or Open Circuit heavy-equipment Major View →