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
CID-199-FMI-4 Caterpillar CAT Electronic Control Module Caterpillar CID 199 FMI 4 - Work Tool Diagnostic: Voltage Below Normal, or Shorted to Low Source heavy-equipment Minor View →
CID-172-FMI-2 Caterpillar CAT Electronic Control Module Caterpillar CID 172 FMI 2 - Low Speed Travel Switch: Data Erratic, Intermittent, or Incorrect heavy-equipment Minor View →
461-16 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 461 FMI 16 - Fuel Water Separator Sensor Data Valid But Above Normal Operating Range (Moderately Severe) heavy-equipment Minor View →
31-17 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 31 FMI 17 - Engine Speed-Timing Sensor (Secondary) Data Valid But Below Normal Operating Range (Least Severe) heavy-equipment Info View →
CID-72-FMI-5 Caterpillar CAT Electronic Control Module Caterpillar CID 72 FMI 5 - PTO Speed: Current Below Normal, or Open Circuit heavy-equipment Minor View →
CID-149-FMI-5 Caterpillar CAT Electronic Control Module Caterpillar CID 149 FMI 5 - GPS Altitude: Current Below Normal, or Open Circuit heavy-equipment Minor View →
190-17 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 190 FMI 17 - Engine Speed (RPM) Data Valid But Below Normal Operating Range (Least Severe) heavy-equipment Info View →
CID-174-FMI-5 Caterpillar CAT Electronic Control Module Caterpillar CID 174 FMI 5 - Auto Grade Switch: Current Below Normal, or Open Circuit heavy-equipment Minor View →
CID-170-FMI-3 Caterpillar CAT Electronic Control Module Caterpillar CID 170 FMI 3 - Cruise Control Switch: Voltage Above Normal, or Shorted to High Source heavy-equipment Minor View →
16-15 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 16 FMI 15 - Engine Oil Pressure Sensor Data Valid But Above Normal Operating Range (Least Severe) heavy-equipment Info View →
391-5 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 391 FMI 5 - Hydraulic Oil Temperature Sensor Current Below Normal/Open Circuit heavy-equipment Major View →
CID-79-FMI-6 Caterpillar CAT Electronic Control Module Caterpillar CID 79 FMI 6 - Engine Speed Sensor: Current Above Normal, or Grounded Circuit heavy-equipment Critical View →
255-16 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 255 FMI 16 - Fuel Injector (Cylinder 5) Data Valid But Above Normal Operating Range (Moderately Severe) heavy-equipment Minor View →
CID-172-FMI-5 Caterpillar CAT Electronic Control Module Caterpillar CID 172 FMI 5 - Low Speed Travel Switch: Current Below Normal, or Open Circuit heavy-equipment Minor View →
5-8 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 5 FMI 8 - Inlet Manifold Air Temperature Sensor Abnormal Frequency/Pulse Width heavy-equipment Major View →
CID-109-FMI-13 Caterpillar CAT Electronic Control Module Caterpillar CID 109 FMI 13 - Fuel Filter Differential Pressure: Out of Calibration heavy-equipment Minor View →
CID-41-FMI-4 Caterpillar CAT Electronic Control Module Caterpillar CID 41 FMI 4 - Engine Overspeed: Voltage Below Normal, or Shorted to Low Source heavy-equipment Critical View →
51-8 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 51 FMI 8 - Engine Speed-Timing Sensor (Rack Position) Abnormal Frequency/Pulse Width heavy-equipment Major View →
461-3 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 461 FMI 3 - Fuel Water Separator Sensor Voltage Above Normal/Shorted High heavy-equipment Major View →
CID-35-FMI-1 Caterpillar CAT Electronic Control Module Caterpillar CID 35 FMI 1 - Hydraulic Fan Solenoid: Data Valid But Below Normal Operational Range heavy-equipment Major View →
CID-124-FMI-5 Caterpillar CAT Electronic Control Module Caterpillar CID 124 FMI 5 - Pilot Pressure: Current Below Normal, or Open Circuit heavy-equipment Minor View →
CID-158-FMI-4 Caterpillar CAT Electronic Control Module Caterpillar CID 158 FMI 4 - Armrest Position Switch: Voltage Below Normal, or Shorted to Low Source heavy-equipment Minor View →
CID-92-FMI-2 Caterpillar CAT Electronic Control Module Caterpillar CID 92 FMI 2 - Total Tattletale: Data Erratic, Intermittent, or Incorrect heavy-equipment Minor View →
CID-140-FMI-1 Caterpillar CAT Electronic Control Module Caterpillar CID 140 FMI 1 - Right Track Position Sensor: Data Valid But Below Normal Operational Range heavy-equipment Minor View →
CID-113-FMI-4 Caterpillar CAT Electronic Control Module Caterpillar CID 113 FMI 4 - Axle Oil Temperature: Voltage Below Normal, or Shorted to Low Source heavy-equipment Minor View →
CID-55-FMI-1 Caterpillar CAT Electronic Control Module Caterpillar CID 55 FMI 1 - DEF Tank Temperature: Data Valid But Below Normal Operational Range heavy-equipment Minor View →
91-16 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 91 FMI 16 - Injection Actuation Pressure Control Valve (Open) Data Valid But Above Normal Operating Range (Moderately Severe) heavy-equipment Minor View →
CID-102-FMI-2 Caterpillar CAT Electronic Control Module Caterpillar CID 102 FMI 2 - Percent Engine Torque: Data Erratic, Intermittent, or Incorrect heavy-equipment Minor View →
26-3 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 26 FMI 3 - Inlet Manifold Pressure Sensor Voltage Above Normal/Shorted High heavy-equipment Major View →
CID-93-FMI-3 Caterpillar CAT Electronic Control Module Caterpillar CID 93 FMI 3 - Trip Tattletale: Voltage Above Normal, or Shorted to High Source heavy-equipment Minor View →
CID-171-FMI-4 Caterpillar CAT Electronic Control Module Caterpillar CID 171 FMI 4 - High Speed Travel Switch: Voltage Below Normal, or Shorted to Low Source heavy-equipment Minor View →
253-5 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 253 FMI 5 - Fuel Injector (Cylinder 3) Current Below Normal/Open Circuit heavy-equipment Major View →
CID-47-FMI-4 Caterpillar CAT Electronic Control Module Caterpillar CID 47 FMI 4 - Turbocharger Compressor Outlet Temperature: Voltage Below Normal, or Shorted to Low Source heavy-equipment Major View →
291-4 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 291 FMI 4 - Transmission Temperature Sensor Voltage Below Normal/Shorted Low heavy-equipment Major View →
CID-95-FMI-2 Caterpillar CAT Electronic Control Module Caterpillar CID 95 FMI 2 - Total Fuel Used: Data Erratic, Intermittent, or Incorrect heavy-equipment Minor View →
CID-38-FMI-8 Caterpillar CAT Electronic Control Module Caterpillar CID 38 FMI 8 - Starter Relay: Abnormal Frequency, Pulse Width, or Period heavy-equipment Major View →
491-17 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 491 FMI 17 - Transmission Filter Bypass Switch Data Valid But Below Normal Operating Range (Least Severe) heavy-equipment Info View →
40-4 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 40 FMI 4 - Engine Oil Level Sensor Voltage Below Normal/Shorted Low heavy-equipment Major View →
111-8 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 111 FMI 8 - Battery Voltage Abnormal Frequency/Pulse Width heavy-equipment Major View →
168-4 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 168 FMI 4 - Engine ECM Voltage Below Normal/Shorted Low heavy-equipment Major View →
CID-1-FMI-4 Caterpillar CAT Electronic Control Module Caterpillar CID 1 FMI 4 - Engine Oil Pressure: Voltage Below Normal, or Shorted to Low Source heavy-equipment Major View →
441-8 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 441 FMI 8 - Engine Warning Indicator Circuit Abnormal Frequency/Pulse Width heavy-equipment Major View →
411-4 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 411 FMI 4 - Radiator Coolant Level (Low) Voltage Below Normal/Shorted Low heavy-equipment Major View →
CID-110-FMI-4 Caterpillar CAT Electronic Control Module Caterpillar CID 110 FMI 4 - Air Filter Differential Pressure: Voltage Below Normal, or Shorted to Low Source heavy-equipment Minor View →
16-17 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 16 FMI 17 - Engine Oil Pressure Sensor Data Valid But Below Normal Operating Range (Least Severe) heavy-equipment Info View →
CID-32-FMI-6 Caterpillar CAT Electronic Control Module Caterpillar CID 32 FMI 6 - Brake Oil Pressure: Current Above Normal, or Grounded Circuit heavy-equipment Major View →
CID-52-FMI-3 Caterpillar CAT Electronic Control Module Caterpillar CID 52 FMI 3 - Selective Catalytic Reduction (SCR) NOx Sensor: Voltage Above Normal, or Shorted to High Source heavy-equipment Major View →
CID-128-FMI-5 Caterpillar CAT Electronic Control Module Caterpillar CID 128 FMI 5 - Stick Cylinder Head Pressure: Current Below Normal, or Open Circuit heavy-equipment Minor View →
100-18 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 100 FMI 18 - Engine Controller (ECM) Power Data Valid But Below Normal Operating Range (Moderately Severe) heavy-equipment Minor View →
CID-53-FMI-4 Caterpillar CAT Electronic Control Module Caterpillar CID 53 FMI 4 - SCR Dosing Unit: Voltage Below Normal, or Shorted to Low Source heavy-equipment Major View →
321-8 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 321 FMI 8 - Brake Oil Pressure (Low) Abnormal Frequency/Pulse Width heavy-equipment Major View →
61-18 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 61 FMI 18 - Alternator (Field Current) Data Valid But Below Normal Operating Range (Moderately Severe) heavy-equipment Minor View →
CID-35-FMI-3 Caterpillar CAT Electronic Control Module Caterpillar CID 35 FMI 3 - Hydraulic Fan Solenoid: Voltage Above Normal, or Shorted to High Source heavy-equipment Major View →
94-6 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 94 FMI 6 - Engine Speed-Timing Sensor (Injection Pump) Current Above Normal/Grounded Circuit heavy-equipment Major View →
CID-89-FMI-13 Caterpillar CAT Electronic Control Module Caterpillar CID 89 FMI 13 - Cylinder Cutout #6: Out of Calibration heavy-equipment Major View →
CID-6-FMI-3 Caterpillar CAT Electronic Control Module Caterpillar CID 6 FMI 3 - Engine Oil Temperature: Voltage Above Normal, or Shorted to High Source heavy-equipment Major View →
CID-65-FMI-3 Caterpillar CAT Electronic Control Module Caterpillar CID 65 FMI 3 - Engine Brake Solenoid #2: Voltage Above Normal, or Shorted to High Source heavy-equipment Major View →
41-18 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 41 FMI 18 - Air Inlet Heater Relay Data Valid But Below Normal Operating Range (Moderately Severe) heavy-equipment Minor View →
27-15 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 27 FMI 15 - Atmospheric Pressure Sensor Data Valid But Above Normal Operating Range (Least Severe) heavy-equipment Info View →
CID-153-FMI-8 Caterpillar CAT Electronic Control Module Caterpillar CID 153 FMI 8 - Radio Signal Strength: Abnormal Frequency, Pulse Width, or Period heavy-equipment Minor View →
172-17 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 172 FMI 17 - Fuel Injection Actuation Pressure (High) Data Valid But Below Normal Operating Range (Least Severe) heavy-equipment Info View →
110-18 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 110 FMI 18 - Radiator Coolant Temperature Sensor Data Valid But Below Normal Operating Range (Moderately Severe) heavy-equipment Minor View →
471-15 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 471 FMI 15 - Engine Over-speed Protection Data Valid But Above Normal Operating Range (Least Severe) heavy-equipment Info View →
CID-162-FMI-2 Caterpillar CAT Electronic Control Module Caterpillar CID 162 FMI 2 - Joystick Position #4: Data Erratic, Intermittent, or Incorrect heavy-equipment Minor View →
491-8 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 491 FMI 8 - Transmission Filter Bypass Switch Abnormal Frequency/Pulse Width heavy-equipment Major View →
46-15 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 46 FMI 15 - ECM Connector (Rack Sensor) Data Valid But Above Normal Operating Range (Least Severe) heavy-equipment Info View →
471-6 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 471 FMI 6 - Engine Over-speed Protection Current Above Normal/Grounded Circuit heavy-equipment Major View →
172-6 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 172 FMI 6 - Fuel Injection Actuation Pressure (High) Current Above Normal/Grounded Circuit heavy-equipment Major View →
71-2 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 71 FMI 2 - Fuel Injection Quantity Data Erratic/Intermittent heavy-equipment Minor View →
471-18 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 471 FMI 18 - Engine Over-speed Protection Data Valid But Below Normal Operating Range (Moderately Severe) heavy-equipment Minor View →
CID-122-FMI-6 Caterpillar CAT Electronic Control Module Caterpillar CID 122 FMI 6 - Fan Pump Pressure: Current Above Normal, or Grounded Circuit heavy-equipment Minor View →
CID-77-FMI-5 Caterpillar CAT Electronic Control Module Caterpillar CID 77 FMI 5 - Injection Actuation Pressure: Current Below Normal, or Open Circuit heavy-equipment Critical View →
37-17 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 37 FMI 17 - Crankcase Pressure Sensor Data Valid But Below Normal Operating Range (Least Severe) heavy-equipment Info View →
CID-8-FMI-6 Caterpillar CAT Electronic Control Module Caterpillar CID 8 FMI 6 - Intake Manifold Pressure: Current Above Normal, or Grounded Circuit heavy-equipment Major View →
CID-102-FMI-5 Caterpillar CAT Electronic Control Module Caterpillar CID 102 FMI 5 - Percent Engine Torque: Current Below Normal, or Open Circuit heavy-equipment Minor View →
CID-175-FMI-2 Caterpillar CAT Electronic Control Module Caterpillar CID 175 FMI 2 - Hammer Mode Switch: Data Erratic, Intermittent, or Incorrect heavy-equipment Minor View →
CID-78-FMI-8 Caterpillar CAT Electronic Control Module Caterpillar CID 78 FMI 8 - Injection Actuation Pressure Control Valve: Abnormal Frequency, Pulse Width, or Period heavy-equipment Major View →