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
100-5 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 100 FMI 5 - Engine Controller (ECM) Power Current Below Normal/Open Circuit heavy-equipment Major View →
11-4 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 11 FMI 4 - Throttle Position Sensor Voltage Below Normal/Shorted Low heavy-equipment Major View →
321-3 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 321 FMI 3 - Brake Oil Pressure (Low) Voltage Above Normal/Shorted High heavy-equipment Major View →
CID-42-FMI-2 Caterpillar CAT Electronic Control Module Caterpillar CID 42 FMI 2 - Low Idle Speed: Data Erratic, Intermittent, or Incorrect heavy-equipment Major View →
291-16 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 291 FMI 16 - Transmission Temperature Sensor Data Valid But Above Normal Operating Range (Moderately Severe) heavy-equipment Minor View →
70-6 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 70 FMI 6 - Injection Actuation Pressure Sensor (Open) Current Above Normal/Grounded Circuit heavy-equipment Major View →
61-3 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 61 FMI 3 - Alternator (Field Current) Voltage Above Normal/Shorted High heavy-equipment Major View →
26-15 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 26 FMI 15 - Inlet Manifold Pressure Sensor Data Valid But Above Normal Operating Range (Least Severe) heavy-equipment Info View →
CID-58-FMI-8 Caterpillar CAT Electronic Control Module Caterpillar CID 58 FMI 8 - DEF Pump: Abnormal Frequency, Pulse Width, or Period heavy-equipment Major View →
CID-109-FMI-6 Caterpillar CAT Electronic Control Module Caterpillar CID 109 FMI 6 - Fuel Filter Differential Pressure: Current Above Normal, or Grounded Circuit heavy-equipment Minor View →
70-17 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 70 FMI 17 - Injection Actuation Pressure Sensor (Open) Data Valid But Below Normal Operating Range (Least Severe) heavy-equipment Info View →
CID-123-FMI-8 Caterpillar CAT Electronic Control Module Caterpillar CID 123 FMI 8 - Charge Pump Pressure: Abnormal Frequency, Pulse Width, or Period heavy-equipment Minor View →
CID-23-FMI-6 Caterpillar CAT Electronic Control Module Caterpillar CID 23 FMI 6 - ECM Communication: Current Above Normal, or Grounded Circuit heavy-equipment Major View →
2-1 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 2 FMI 1 - Engine Speed-Timing Sensor Data Valid But Below Normal Range heavy-equipment Major View →
336-15 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 336 FMI 15 - Hydraulic Pump Pressure Sensor Data Valid But Above Normal Operating Range (Least Severe) heavy-equipment Info View →
CID-143-FMI-6 Caterpillar CAT Electronic Control Module Caterpillar CID 143 FMI 6 - Bucket Angle: Current Above Normal, or Grounded Circuit heavy-equipment Minor View →
361-18 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 361 FMI 18 - Engine Oil Temperature (High) Data Valid But Below Normal Operating Range (Moderately Severe) heavy-equipment Minor View →
4-3 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 4 FMI 3 - Engine Coolant Temperature Sensor Voltage Above Normal/Shorted High heavy-equipment Major View →
271-2 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 271 FMI 2 - Transmission Oil Pressure Sensor Data Erratic/Intermittent heavy-equipment Minor View →
172-16 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 172 FMI 16 - Fuel Injection Actuation Pressure (High) Data Valid But Above Normal Operating Range (Moderately Severe) heavy-equipment Minor View →
94-3 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 94 FMI 3 - Engine Speed-Timing Sensor (Injection Pump) Voltage Above Normal/Shorted High heavy-equipment Major View →
336-2 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 336 FMI 2 - Hydraulic Pump Pressure Sensor Data Erratic/Intermittent heavy-equipment Minor View →
CID-157-FMI-3 Caterpillar CAT Electronic Control Module Caterpillar CID 157 FMI 3 - Seat Belt Switch: Voltage Above Normal, or Shorted to High Source heavy-equipment Minor View →
CID-121-FMI-4 Caterpillar CAT Electronic Control Module Caterpillar CID 121 FMI 4 - Steering Pump Pressure: Voltage Below Normal, or Shorted to Low Source heavy-equipment Minor View →
168-8 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 168 FMI 8 - Engine ECM Abnormal Frequency/Pulse Width heavy-equipment Major View →
CID-115-FMI-3 Caterpillar CAT Electronic Control Module Caterpillar CID 115 FMI 3 - Final Drive Oil Temperature: Voltage Above Normal, or Shorted to High Source heavy-equipment Minor View →
341-13 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 341 FMI 13 - Brake Fluid Level Sensor Out of Calibration heavy-equipment Minor View →
CID-135-FMI-3 Caterpillar CAT Electronic Control Module Caterpillar CID 135 FMI 3 - Boom Position Sensor: Voltage Above Normal, or Shorted to High Source heavy-equipment Minor View →
256-16 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 256 FMI 16 - Fuel Injector (Cylinder 6) Data Valid But Above Normal Operating Range (Moderately Severe) heavy-equipment Minor View →
CID-131-FMI-4 Caterpillar CAT Electronic Control Module Caterpillar CID 131 FMI 4 - Bucket Cylinder Rod Pressure: Voltage Below Normal, or Shorted to Low Source heavy-equipment Minor View →
100-16 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 100 FMI 16 - Engine Controller (ECM) Power Data Valid But Above Normal Operating Range (Moderately Severe) heavy-equipment Minor View →
CID-60-FMI-2 Caterpillar CAT Electronic Control Module Caterpillar CID 60 FMI 2 - EGR Valve Position: Data Erratic, Intermittent, or Incorrect heavy-equipment Major View →
CID-68-FMI-4 Caterpillar CAT Electronic Control Module Caterpillar CID 68 FMI 4 - Coolant Level: Voltage Below Normal, or Shorted to Low Source heavy-equipment Major View →
10-18 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 10 FMI 18 - Fuel Pressure Sensor Data Valid But Below Normal Operating Range (Moderately Severe) heavy-equipment Minor View →
CID-153-FMI-5 Caterpillar CAT Electronic Control Module Caterpillar CID 153 FMI 5 - Radio Signal Strength: Current Below Normal, or Open Circuit heavy-equipment Minor View →
CID-134-FMI-6 Caterpillar CAT Electronic Control Module Caterpillar CID 134 FMI 6 - Right Travel Motor Pressure: Current Above Normal, or Grounded Circuit heavy-equipment Minor View →
CID-61-FMI-4 Caterpillar CAT Electronic Control Module Caterpillar CID 61 FMI 4 - EGR Temperature: Voltage Below Normal, or Shorted to Low Source heavy-equipment Major View →
CID-196-FMI-2 Caterpillar CAT Electronic Control Module Caterpillar CID 196 FMI 2 - Work Tool Hour Meter: Data Erratic, Intermittent, or Incorrect heavy-equipment Minor View →
111-13 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 111 FMI 13 - Battery Voltage Out of Calibration heavy-equipment Minor View →
CID-96-FMI-3 Caterpillar CAT Electronic Control Module Caterpillar CID 96 FMI 3 - Trip Fuel Used: Voltage Above Normal, or Shorted to High Source heavy-equipment Minor View →
190-6 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 190 FMI 6 - Engine Speed (RPM) Current Above Normal/Grounded Circuit heavy-equipment Major View →
351-2 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 351 FMI 2 - Radiator Coolant Pressure Sensor Data Erratic/Intermittent heavy-equipment Minor View →
CID-199-FMI-5 Caterpillar CAT Electronic Control Module Caterpillar CID 199 FMI 5 - Work Tool Diagnostic: Current Below Normal, or Open Circuit heavy-equipment Minor View →
91-18 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 91 FMI 18 - Injection Actuation Pressure Control Valve (Open) Data Valid But Below Normal Operating Range (Moderately Severe) heavy-equipment Minor View →
CID-129-FMI-13 Caterpillar CAT Electronic Control Module Caterpillar CID 129 FMI 13 - Stick Cylinder Rod Pressure: Out of Calibration heavy-equipment Minor View →
CID-88-FMI-3 Caterpillar CAT Electronic Control Module Caterpillar CID 88 FMI 3 - Cylinder Cutout #5: Voltage Above Normal, or Shorted to High Source heavy-equipment Major View →
CID-181-FMI-4 Caterpillar CAT Electronic Control Module Caterpillar CID 181 FMI 4 - Auxiliary Hydraulic Pressure: Voltage Below Normal, or Shorted to Low Source heavy-equipment Minor View →
CID-76-FMI-4 Caterpillar CAT Electronic Control Module Caterpillar CID 76 FMI 4 - Fuel Injection Timing: Voltage Below Normal, or Shorted to Low Source heavy-equipment Major View →
46-5 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 46 FMI 5 - ECM Connector (Rack Sensor) Current Below Normal/Open Circuit heavy-equipment Major View →
CID-16-FMI-5 Caterpillar CAT Electronic Control Module Caterpillar CID 16 FMI 5 - Fuel Injector #2: Current Below Normal, or Open Circuit heavy-equipment Major View →
CID-187-FMI-6 Caterpillar CAT Electronic Control Module Caterpillar CID 187 FMI 6 - Attachment Direction: Current Above Normal, or Grounded Circuit heavy-equipment Minor View →
94-17 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 94 FMI 17 - Engine Speed-Timing Sensor (Injection Pump) Data Valid But Below Normal Operating Range (Least Severe) heavy-equipment Info View →
281-17 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 281 FMI 17 - Transmission Speed Sensor Data Valid But Below Normal Operating Range (Least Severe) heavy-equipment Info View →
CID-48-FMI-6 Caterpillar CAT Electronic Control Module Caterpillar CID 48 FMI 6 - Exhaust Gas Temperature Bank 1: Current Above Normal, or Grounded Circuit heavy-equipment Major View →
281-6 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 281 FMI 6 - Transmission Speed Sensor Current Above Normal/Grounded Circuit heavy-equipment Major View →
42-1 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 42 FMI 1 - Engine Oil Temperature Sensor Data Valid But Below Normal Range heavy-equipment Major View →
17-2 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 17 FMI 2 - Alternator (Battery Voltage) Data Erratic/Intermittent heavy-equipment Minor View →
CID-178-FMI-4 Caterpillar CAT Electronic Control Module Caterpillar CID 178 FMI 4 - Thumb Mode Switch: Voltage Below Normal, or Shorted to Low Source heavy-equipment Minor View →
CID-16-FMI-4 Caterpillar CAT Electronic Control Module Caterpillar CID 16 FMI 4 - Fuel Injector #2: Voltage Below Normal, or Shorted to Low Source heavy-equipment Major View →
CID-127-FMI-2 Caterpillar CAT Electronic Control Module Caterpillar CID 127 FMI 2 - Boom Cylinder Rod Pressure: Data Erratic, Intermittent, or Incorrect heavy-equipment Minor View →
CID-8-FMI-4 Caterpillar CAT Electronic Control Module Caterpillar CID 8 FMI 4 - Intake Manifold Pressure: Voltage Below Normal, or Shorted to Low Source heavy-equipment Major View →
200-15 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 200 FMI 15 - Engine Oil Pressure (Low) Data Valid But Above Normal Operating Range (Least Severe) heavy-equipment Info View →
CID-40-FMI-0 Caterpillar CAT Electronic Control Module Caterpillar CID 40 FMI 0 - Engine Protection Override: Data Valid But Above Normal Operational Range heavy-equipment Critical View →
82-17 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 82 FMI 17 - Throttle Position Sensor (PWM) Data Valid But Below Normal Operating Range (Least Severe) heavy-equipment Info View →
20-16 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 20 FMI 16 - Injection Actuation Pressure Control Valve Data Valid But Above Normal Operating Range (Moderately Severe) heavy-equipment Minor View →
227-1 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 227 FMI 1 - Injection Actuation Pressure (Low) Data Valid But Below Normal Range heavy-equipment Major View →
415-2 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 415 FMI 2 - Engine Oil Level (Low) Data Erratic/Intermittent heavy-equipment Minor View →
CID-196-FMI-4 Caterpillar CAT Electronic Control Module Caterpillar CID 196 FMI 4 - Work Tool Hour Meter: Voltage Below Normal, or Shorted to Low Source heavy-equipment Minor View →
CID-92-FMI-5 Caterpillar CAT Electronic Control Module Caterpillar CID 92 FMI 5 - Total Tattletale: Current Below Normal, or Open Circuit heavy-equipment Minor View →
172-2 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 172 FMI 2 - Fuel Injection Actuation Pressure (High) Data Erratic/Intermittent heavy-equipment Minor View →
CID-145-FMI-3 Caterpillar CAT Electronic Control Module Caterpillar CID 145 FMI 3 - Machine Pitch Angle: Voltage Above Normal, or Shorted to High Source heavy-equipment Minor View →
41-16 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 41 FMI 16 - Air Inlet Heater Relay Data Valid But Above Normal Operating Range (Moderately Severe) heavy-equipment Minor View →
431-6 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 431 FMI 6 - Brake Fluid Level (Low) Current Above Normal/Grounded Circuit heavy-equipment Major View →
CID-174-FMI-13 Caterpillar CAT Electronic Control Module Caterpillar CID 174 FMI 13 - Auto Grade Switch: Out of Calibration heavy-equipment Minor View →
CID-117-FMI-5 Caterpillar CAT Electronic Control Module Caterpillar CID 117 FMI 5 - Swing Brake Oil Pressure: Current Below Normal, or Open Circuit heavy-equipment Major View →
20-0 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 20 FMI 0 - Injection Actuation Pressure Control Valve Data Valid But Above Normal Range heavy-equipment Major View →
CID-200-FMI-3 Caterpillar CAT Electronic Control Module Caterpillar CID 200 FMI 3 - Work Tool Calibration: Voltage Above Normal, or Shorted to High Source heavy-equipment Minor View →