Heavy Equipment Fault Codes

1,572 codes
Filter by Brand:
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
336-8 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 336 FMI 8 - Hydraulic Pump Pressure Sensor Abnormal Frequency/Pulse Width heavy-equipment Major View →
4-4 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 4 FMI 4 - Engine Coolant Temperature Sensor Voltage Below Normal/Shorted Low heavy-equipment Major View →
61-0 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 61 FMI 0 - Alternator (Field Current) Data Valid But Above Normal Range heavy-equipment Major View →
CID-167-FMI-4 Caterpillar CAT Electronic Control Module Caterpillar CID 167 FMI 4 - Travel Mode Switch: Voltage Below Normal, or Shorted to Low Source heavy-equipment Minor View →
93-18 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 93 FMI 18 - Fuel Injection Pump Solenoid Data Valid But Below Normal Operating Range (Moderately Severe) heavy-equipment Minor View →
CID-69-FMI-5 Caterpillar CAT Electronic Control Module Caterpillar CID 69 FMI 5 - Fuel Level: Current Below Normal, or Open Circuit heavy-equipment Minor View →
CID-7-FMI-4 Caterpillar CAT Electronic Control Module Caterpillar CID 7 FMI 4 - Intake Manifold Air Temperature: Voltage Below Normal, or Shorted to Low Source heavy-equipment Minor View →
CID-115-FMI-2 Caterpillar CAT Electronic Control Module Caterpillar CID 115 FMI 2 - Final Drive Oil Temperature: Data Erratic, Intermittent, or Incorrect heavy-equipment Minor View →
CID-187-FMI-5 Caterpillar CAT Electronic Control Module Caterpillar CID 187 FMI 5 - Attachment Direction: Current Below Normal, or Open Circuit heavy-equipment Minor View →
41-6 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 41 FMI 6 - Air Inlet Heater Relay Current Above Normal/Grounded Circuit heavy-equipment Major View →
1-1 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 1 FMI 1 - Mechanical Engine Speed Sensor Data Valid But Below Normal Range heavy-equipment Major View →
CID-6-FMI-4 Caterpillar CAT Electronic Control Module Caterpillar CID 6 FMI 4 - Engine Oil Temperature: Voltage Below Normal, or Shorted to Low Source heavy-equipment Major View →
CID-137-FMI-4 Caterpillar CAT Electronic Control Module Caterpillar CID 137 FMI 4 - Bucket Position Sensor: Voltage Below Normal, or Shorted to Low Source heavy-equipment Minor View →
256-18 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 256 FMI 18 - Fuel Injector (Cylinder 6) Data Valid But Below Normal Operating Range (Moderately Severe) heavy-equipment Minor View →
CID-38-FMI-3 Caterpillar CAT Electronic Control Module Caterpillar CID 38 FMI 3 - Starter Relay: Voltage Above Normal, or Shorted to High Source heavy-equipment Major View →
415-8 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 415 FMI 8 - Engine Oil Level (Low) Abnormal Frequency/Pulse Width heavy-equipment Major View →
190-1 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 190 FMI 1 - Engine Speed (RPM) Data Valid But Below Normal Range heavy-equipment Major View →
CID-159-FMI-4 Caterpillar CAT Electronic Control Module Caterpillar CID 159 FMI 4 - Joystick Position #1: Voltage Below Normal, or Shorted to Low Source heavy-equipment Minor View →
CID-193-FMI-3 Caterpillar CAT Electronic Control Module Caterpillar CID 193 FMI 3 - Work Tool Position: Voltage Above Normal, or Shorted to High Source heavy-equipment Minor View →
20-5 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 20 FMI 5 - Injection Actuation Pressure Control Valve Current Below Normal/Open Circuit heavy-equipment Major View →
CID-62-FMI-4 Caterpillar CAT Electronic Control Module Caterpillar CID 62 FMI 4 - EGR Differential Pressure: Voltage Below Normal, or Shorted to Low Source heavy-equipment Major View →
227-0 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 227 FMI 0 - Injection Actuation Pressure (Low) Data Valid But Above Normal Range heavy-equipment Major View →
CID-15-FMI-0 Caterpillar CAT Electronic Control Module Caterpillar CID 15 FMI 0 - Fuel Injector #1: Data Valid But Above Normal Operational Range heavy-equipment Major View →
CID-182-FMI-3 Caterpillar CAT Electronic Control Module Caterpillar CID 182 FMI 3 - Auxiliary Hydraulic Flow: Voltage Above Normal, or Shorted to High Source heavy-equipment Minor View →
20-1 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 20 FMI 1 - Injection Actuation Pressure Control Valve Data Valid But Below Normal Range heavy-equipment Major View →
371-0 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 371 FMI 0 - Fuel Filter Differential Pressure Switch Data Valid But Above Normal Range heavy-equipment Major View →
401-2 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 401 FMI 2 - Alternator Not Charging Data Erratic/Intermittent heavy-equipment Minor View →
6-1 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 6 FMI 1 - Engine Speed-Timing Sensor (Duty Cycle) Data Valid But Below Normal Range heavy-equipment Major View →
44-16 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 44 FMI 16 - Engine Warning Indicator Data Valid But Above Normal Operating Range (Moderately Severe) heavy-equipment Minor View →
CID-79-FMI-5 Caterpillar CAT Electronic Control Module Caterpillar CID 79 FMI 5 - Engine Speed Sensor: Current Below Normal, or Open Circuit heavy-equipment Critical View →
421-13 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 421 FMI 13 - Transmission Oil Level (Low) Out of Calibration heavy-equipment Minor View →
291-17 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 291 FMI 17 - Transmission Temperature Sensor Data Valid But Below Normal Operating Range (Least Severe) heavy-equipment Info View →
CID-124-FMI-6 Caterpillar CAT Electronic Control Module Caterpillar CID 124 FMI 6 - Pilot Pressure: Current Above Normal, or Grounded Circuit heavy-equipment Minor View →
CID-198-FMI-3 Caterpillar CAT Electronic Control Module Caterpillar CID 198 FMI 3 - Work Tool Filter Status: Voltage Above Normal, or Shorted to High Source heavy-equipment Minor View →
CID-143-FMI-4 Caterpillar CAT Electronic Control Module Caterpillar CID 143 FMI 4 - Bucket Angle: Voltage Below Normal, or Shorted to Low Source heavy-equipment Minor View →
CID-43-FMI-6 Caterpillar CAT Electronic Control Module Caterpillar CID 43 FMI 6 - High Idle Speed: Current Above Normal, or Grounded Circuit heavy-equipment Major View →
CID-100-FMI-3 Caterpillar CAT Electronic Control Module Caterpillar CID 100 FMI 3 - Average Fuel Rate: Voltage Above Normal, or Shorted to High Source heavy-equipment Minor View →
CID-66-FMI-3 Caterpillar CAT Electronic Control Module Caterpillar CID 66 FMI 3 - Engine Brake Solenoid #3: Voltage Above Normal, or Shorted to High Source heavy-equipment Major View →
271-8 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 271 FMI 8 - Transmission Oil Pressure Sensor Abnormal Frequency/Pulse Width heavy-equipment Major View →
CID-195-FMI-4 Caterpillar CAT Electronic Control Module Caterpillar CID 195 FMI 4 - Work Tool Cycle Count: Voltage Below Normal, or Shorted to Low Source heavy-equipment Minor View →
CID-58-FMI-6 Caterpillar CAT Electronic Control Module Caterpillar CID 58 FMI 6 - DEF Pump: Current Above Normal, or Grounded Circuit heavy-equipment Major View →
271-16 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 271 FMI 16 - Transmission Oil Pressure Sensor Data Valid But Above Normal Operating Range (Moderately Severe) heavy-equipment Minor View →
CID-127-FMI-6 Caterpillar CAT Electronic Control Module Caterpillar CID 127 FMI 6 - Boom Cylinder Rod Pressure: Current Above Normal, or Grounded Circuit heavy-equipment Minor View →
CID-90-FMI-0 Caterpillar CAT Electronic Control Module Caterpillar CID 90 FMI 0 - Crankcase Breather Filter: Data Valid But Above Normal Operational Range heavy-equipment Minor View →
CID-10-FMI-3 Caterpillar CAT Electronic Control Module Caterpillar CID 10 FMI 3 - Coolant Loss: Voltage Above Normal, or Shorted to High Source heavy-equipment Major View →
2-4 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 2 FMI 4 - Engine Speed-Timing Sensor Voltage Below Normal/Shorted Low heavy-equipment Major View →
CID-142-FMI-6 Caterpillar CAT Electronic Control Module Caterpillar CID 142 FMI 6 - Stick Angle: Current Above Normal, or Grounded Circuit heavy-equipment Minor View →
26-16 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 26 FMI 16 - Inlet Manifold Pressure Sensor Data Valid But Above Normal Operating Range (Moderately Severe) heavy-equipment Minor View →
CID-171-FMI-2 Caterpillar CAT Electronic Control Module Caterpillar CID 171 FMI 2 - High Speed Travel Switch: Data Erratic, Intermittent, or Incorrect heavy-equipment Minor View →
CID-45-FMI-2 Caterpillar CAT Electronic Control Module Caterpillar CID 45 FMI 2 - Turbocharger Speed: Data Erratic, Intermittent, or Incorrect heavy-equipment Major View →
CID-181-FMI-5 Caterpillar CAT Electronic Control Module Caterpillar CID 181 FMI 5 - Auxiliary Hydraulic Pressure: Current Below Normal, or Open Circuit heavy-equipment Minor View →
2-6 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 2 FMI 6 - Engine Speed-Timing Sensor Current Above Normal/Grounded Circuit heavy-equipment Major View →
40-16 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 40 FMI 16 - Engine Oil Level Sensor Data Valid But Above Normal Operating Range (Moderately Severe) heavy-equipment Minor View →
52-8 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 52 FMI 8 - Injection Actuation Pressure Sensor (Rail) Abnormal Frequency/Pulse Width heavy-equipment Major View →
CID-132-FMI-4 Caterpillar CAT Electronic Control Module Caterpillar CID 132 FMI 4 - Swing Motor Pressure: Voltage Below Normal, or Shorted to Low Source heavy-equipment Minor View →
3-5 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 3 FMI 5 - Injection Actuation Pressure Sensor Current Below Normal/Open Circuit heavy-equipment Major View →
261-17 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 261 FMI 17 - Fuel Pressure (High) Data Valid But Below Normal Operating Range (Least Severe) heavy-equipment Info View →
CID-32-FMI-3 Caterpillar CAT Electronic Control Module Caterpillar CID 32 FMI 3 - Brake Oil Pressure: Voltage Above Normal, or Shorted to High Source heavy-equipment Major View →
CID-133-FMI-4 Caterpillar CAT Electronic Control Module Caterpillar CID 133 FMI 4 - Left Travel Motor Pressure: Voltage Below Normal, or Shorted to Low Source heavy-equipment Minor View →
CID-103-FMI-8 Caterpillar CAT Electronic Control Module Caterpillar CID 103 FMI 8 - Engine Reference Torque: Abnormal Frequency, Pulse Width, or Period heavy-equipment Minor View →
58-1 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 58 FMI 1 - Analog Temperature Sensor Data Valid But Below Normal Range heavy-equipment Major View →
CID-70-FMI-0 Caterpillar CAT Electronic Control Module Caterpillar CID 70 FMI 0 - Engine Load Factor: Data Valid But Above Normal Operational Range heavy-equipment Minor View →
425-4 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 425 FMI 4 - Hydraulic Oil Level (Low) Voltage Below Normal/Shorted Low heavy-equipment Major View →
CID-80-FMI-0 Caterpillar CAT Electronic Control Module Caterpillar CID 80 FMI 0 - Camshaft Position Sensor: Data Valid But Above Normal Operational Range heavy-equipment Critical View →
CID-94-FMI-8 Caterpillar CAT Electronic Control Module Caterpillar CID 94 FMI 8 - Engine Run Time: Abnormal Frequency, Pulse Width, or Period heavy-equipment Minor View →
CID-164-FMI-5 Caterpillar CAT Electronic Control Module Caterpillar CID 164 FMI 5 - Pedal Position #2: Current Below Normal, or Open Circuit heavy-equipment Minor View →
CID-164-FMI-8 Caterpillar CAT Electronic Control Module Caterpillar CID 164 FMI 8 - Pedal Position #2: Abnormal Frequency, Pulse Width, or Period heavy-equipment Minor View →
3-4 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 3 FMI 4 - Injection Actuation Pressure Sensor Voltage Below Normal/Shorted Low heavy-equipment Major View →
93-6 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 93 FMI 6 - Fuel Injection Pump Solenoid Current Above Normal/Grounded Circuit heavy-equipment Major View →
55-0 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 55 FMI 0 - Injection Actuation Pressure Control Valve (Current) Data Valid But Above Normal Range heavy-equipment Major View →
254-17 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 254 FMI 17 - Fuel Injector (Cylinder 4) Data Valid But Below Normal Operating Range (Least Severe) heavy-equipment Info View →
11-17 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 11 FMI 17 - Throttle Position Sensor Data Valid But Below Normal Operating Range (Least Severe) heavy-equipment Info View →
CID-18-FMI-5 Caterpillar CAT Electronic Control Module Caterpillar CID 18 FMI 5 - Fuel Injector #4: Current Below Normal, or Open Circuit heavy-equipment Major View →
431-8 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 431 FMI 8 - Brake Fluid Level (Low) Abnormal Frequency/Pulse Width heavy-equipment Major View →
5-6 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 5 FMI 6 - Inlet Manifold Air Temperature Sensor Current Above Normal/Grounded Circuit heavy-equipment Major View →
291-6 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 291 FMI 6 - Transmission Temperature Sensor Current Above Normal/Grounded Circuit heavy-equipment Major View →
CID-31-FMI-4 Caterpillar CAT Electronic Control Module Caterpillar CID 31 FMI 4 - Steering Oil Pressure: Voltage Below Normal, or Shorted to Low Source heavy-equipment Minor View →