Heavy Equipment Fault Codes

1,572 codes
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Code Brand Model Error / Alarm Type Severity Action
71-16 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 71 FMI 16 - Fuel Injection Quantity Data Valid But Above Normal Operating Range (Moderately Severe) heavy-equipment Minor View →
241-3 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 241 FMI 3 - Engine Speed-Timing Sensor (Camshaft) Voltage Above Normal/Shorted High heavy-equipment Major View →
CID-150-FMI-0 Caterpillar CAT Electronic Control Module Caterpillar CID 150 FMI 0 - GPS Speed: Data Valid But Above Normal Operational Range heavy-equipment Minor View →
421-5 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 421 FMI 5 - Transmission Oil Level (Low) Current Below Normal/Open Circuit heavy-equipment Major View →
CID-43-FMI-4 Caterpillar CAT Electronic Control Module Caterpillar CID 43 FMI 4 - High Idle Speed: Voltage Below Normal, or Shorted to Low Source heavy-equipment Major View →
CID-30-FMI-2 Caterpillar CAT Electronic Control Module Caterpillar CID 30 FMI 2 - Transmission Oil Pressure: Data Erratic, Intermittent, or Incorrect heavy-equipment Major View →
CID-118-FMI-4 Caterpillar CAT Electronic Control Module Caterpillar CID 118 FMI 4 - Service Brake Oil Pressure: Voltage Below Normal, or Shorted to Low Source heavy-equipment Major View →
391-15 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 391 FMI 15 - Hydraulic Oil Temperature Sensor Data Valid But Above Normal Operating Range (Least Severe) heavy-equipment Info View →
253-17 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 253 FMI 17 - Fuel Injector (Cylinder 3) Data Valid But Below Normal Operating Range (Least Severe) heavy-equipment Info View →
CID-131-FMI-5 Caterpillar CAT Electronic Control Module Caterpillar CID 131 FMI 5 - Bucket Cylinder Rod Pressure: Current Below Normal, or Open Circuit heavy-equipment Minor View →
CID-86-FMI-1 Caterpillar CAT Electronic Control Module Caterpillar CID 86 FMI 1 - Cylinder Cutout #3: Data Valid But Below Normal Operational Range heavy-equipment Major View →
58-8 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 58 FMI 8 - Analog Temperature Sensor Abnormal Frequency/Pulse Width heavy-equipment Major View →
CID-53-FMI-5 Caterpillar CAT Electronic Control Module Caterpillar CID 53 FMI 5 - SCR Dosing Unit: Current Below Normal, or Open Circuit heavy-equipment Major View →
42-18 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 42 FMI 18 - Engine Oil Temperature Sensor Data Valid But Below Normal Operating Range (Moderately Severe) heavy-equipment Minor View →
71-0 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 71 FMI 0 - Fuel Injection Quantity Data Valid But Above Normal Range heavy-equipment Major View →
491-1 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 491 FMI 1 - Transmission Filter Bypass Switch Data Valid But Below Normal Range heavy-equipment Major View →
58-5 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 58 FMI 5 - Analog Temperature Sensor Current Below Normal/Open Circuit heavy-equipment Major View →
41-0 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 41 FMI 0 - Air Inlet Heater Relay Data Valid But Above Normal Range heavy-equipment Major View →
CID-61-FMI-1 Caterpillar CAT Electronic Control Module Caterpillar CID 61 FMI 1 - EGR Temperature: Data Valid But Below Normal Operational Range heavy-equipment Major View →
CID-55-FMI-4 Caterpillar CAT Electronic Control Module Caterpillar CID 55 FMI 4 - DEF Tank Temperature: Voltage Below Normal, or Shorted to Low Source heavy-equipment Minor View →
CID-115-FMI-4 Caterpillar CAT Electronic Control Module Caterpillar CID 115 FMI 4 - Final Drive Oil Temperature: Voltage Below Normal, or Shorted to Low Source heavy-equipment Minor View →
CID-55-FMI-3 Caterpillar CAT Electronic Control Module Caterpillar CID 55 FMI 3 - DEF Tank Temperature: Voltage Above Normal, or Shorted to High Source heavy-equipment Minor View →
CID-150-FMI-4 Caterpillar CAT Electronic Control Module Caterpillar CID 150 FMI 4 - GPS Speed: Voltage Below Normal, or Shorted to Low Source heavy-equipment Minor View →
227-5 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 227 FMI 5 - Injection Actuation Pressure (Low) Current Below Normal/Open Circuit heavy-equipment Major View →
CID-42-FMI-6 Caterpillar CAT Electronic Control Module Caterpillar CID 42 FMI 6 - Low Idle Speed: Current Above Normal, or Grounded Circuit heavy-equipment Major View →
CID-49-FMI-8 Caterpillar CAT Electronic Control Module Caterpillar CID 49 FMI 8 - Exhaust Gas Temperature Bank 2: Abnormal Frequency, Pulse Width, or Period heavy-equipment Major View →
17-17 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 17 FMI 17 - Alternator (Battery Voltage) Data Valid But Below Normal Operating Range (Least Severe) heavy-equipment Info View →
4-5 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 4 FMI 5 - Engine Coolant Temperature Sensor Current Below Normal/Open Circuit heavy-equipment Major View →
110-16 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 110 FMI 16 - Radiator Coolant Temperature Sensor Data Valid But Above Normal Operating Range (Moderately Severe) heavy-equipment Minor View →
CID-119-FMI-8 Caterpillar CAT Electronic Control Module Caterpillar CID 119 FMI 8 - Parking Brake Oil Pressure: Abnormal Frequency, Pulse Width, or Period heavy-equipment Major View →
CID-54-FMI-13 Caterpillar CAT Electronic Control Module Caterpillar CID 54 FMI 13 - SCR Catalyst Temperature: Out of Calibration heavy-equipment Major View →
11-16 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 11 FMI 16 - Throttle Position Sensor Data Valid But Above Normal Operating Range (Moderately Severe) heavy-equipment Minor View →
CID-5-FMI-4 Caterpillar CAT Electronic Control Module Caterpillar CID 5 FMI 4 - Battery Voltage: Voltage Below Normal, or Shorted to Low Source heavy-equipment Major View →
42-0 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 42 FMI 0 - Engine Oil Temperature Sensor Data Valid But Above Normal Range heavy-equipment Major View →
CID-121-FMI-5 Caterpillar CAT Electronic Control Module Caterpillar CID 121 FMI 5 - Steering Pump Pressure: Current Below Normal, or Open Circuit heavy-equipment Minor View →
CID-77-FMI-3 Caterpillar CAT Electronic Control Module Caterpillar CID 77 FMI 3 - Injection Actuation Pressure: Voltage Above Normal, or Shorted to High Source heavy-equipment Critical View →
6-4 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 6 FMI 4 - Engine Speed-Timing Sensor (Duty Cycle) Voltage Below Normal/Shorted Low heavy-equipment Major View →
281-16 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 281 FMI 16 - Transmission Speed Sensor Data Valid But Above Normal Operating Range (Moderately Severe) heavy-equipment Minor View →
371-3 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 371 FMI 3 - Fuel Filter Differential Pressure Switch Voltage Above Normal/Shorted High heavy-equipment Major View →
CID-125-FMI-3 Caterpillar CAT Electronic Control Module Caterpillar CID 125 FMI 3 - Main Relief Pressure: Voltage Above Normal, or Shorted to High Source heavy-equipment Minor View →
421-6 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 421 FMI 6 - Transmission Oil Level (Low) Current Above Normal/Grounded Circuit heavy-equipment Major View →
CID-117-FMI-6 Caterpillar CAT Electronic Control Module Caterpillar CID 117 FMI 6 - Swing Brake Oil Pressure: Current Above Normal, or Grounded Circuit heavy-equipment Major View →
351-5 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 351 FMI 5 - Radiator Coolant Pressure Sensor Current Below Normal/Open Circuit heavy-equipment Major View →
61-6 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 61 FMI 6 - Alternator (Field Current) Current Above Normal/Grounded Circuit heavy-equipment Major View →
381-2 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 381 FMI 2 - Engine Air Filter Restriction Switch Data Erratic/Intermittent heavy-equipment Minor View →
CID-76-FMI-3 Caterpillar CAT Electronic Control Module Caterpillar CID 76 FMI 3 - Fuel Injection Timing: Voltage Above Normal, or Shorted to High Source heavy-equipment Major View →
441-13 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 441 FMI 13 - Engine Warning Indicator Circuit Out of Calibration heavy-equipment Minor View →
252-6 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 252 FMI 6 - Fuel Injector (Cylinder 2) Current Above Normal/Grounded Circuit heavy-equipment Major View →
CID-156-FMI-2 Caterpillar CAT Electronic Control Module Caterpillar CID 156 FMI 2 - Operator Presence: Data Erratic, Intermittent, or Incorrect heavy-equipment Major View →
CID-128-FMI-4 Caterpillar CAT Electronic Control Module Caterpillar CID 128 FMI 4 - Stick Cylinder Head Pressure: Voltage Below Normal, or Shorted to Low Source heavy-equipment Minor View →
CID-79-FMI-4 Caterpillar CAT Electronic Control Module Caterpillar CID 79 FMI 4 - Engine Speed Sensor: Voltage Below Normal, or Shorted to Low Source heavy-equipment Critical View →
58-18 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 58 FMI 18 - Analog Temperature Sensor Data Valid But Below Normal Operating Range (Moderately Severe) heavy-equipment Minor View →
5-13 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 5 FMI 13 - Inlet Manifold Air Temperature Sensor Out of Calibration heavy-equipment Minor View →
CID-1-FMI-2 Caterpillar CAT Electronic Control Module Caterpillar CID 1 FMI 2 - Engine Oil Pressure: Data Erratic, Intermittent, or Incorrect heavy-equipment Major View →
CID-7-FMI-3 Caterpillar CAT Electronic Control Module Caterpillar CID 7 FMI 3 - Intake Manifold Air Temperature: Voltage Above Normal, or Shorted to High Source heavy-equipment Minor View →
68-0 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 68 FMI 0 - Turbocharger Compressor Outlet Temperature Data Valid But Above Normal Range heavy-equipment Major View →
CID-16-FMI-1 Caterpillar CAT Electronic Control Module Caterpillar CID 16 FMI 1 - Fuel Injector #2: Data Valid But Below Normal Operational Range heavy-equipment Major View →
93-8 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 93 FMI 8 - Fuel Injection Pump Solenoid Abnormal Frequency/Pulse Width heavy-equipment Major View →
271-18 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 271 FMI 18 - Transmission Oil Pressure Sensor Data Valid But Below Normal Operating Range (Moderately Severe) heavy-equipment Minor View →
CID-164-FMI-13 Caterpillar CAT Electronic Control Module Caterpillar CID 164 FMI 13 - Pedal Position #2: Out of Calibration heavy-equipment Minor View →
CID-91-FMI-3 Caterpillar CAT Electronic Control Module Caterpillar CID 91 FMI 3 - Engine Serial Number: Voltage Above Normal, or Shorted to High Source heavy-equipment Major View →
17-6 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 17 FMI 6 - Alternator (Battery Voltage) Current Above Normal/Grounded Circuit heavy-equipment Major View →
401-5 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 401 FMI 5 - Alternator Not Charging Current Below Normal/Open Circuit heavy-equipment Major View →
CID-66-FMI-4 Caterpillar CAT Electronic Control Module Caterpillar CID 66 FMI 4 - Engine Brake Solenoid #3: Voltage Below Normal, or Shorted to Low Source heavy-equipment Major View →
CID-15-FMI-3 Caterpillar CAT Electronic Control Module Caterpillar CID 15 FMI 3 - Fuel Injector #1: Voltage Above Normal, or Shorted to High Source heavy-equipment Major View →
CID-75-FMI-3 Caterpillar CAT Electronic Control Module Caterpillar CID 75 FMI 3 - Actual Throttle Position: Voltage Above Normal, or Shorted to High Source heavy-equipment Major View →
CID-74-FMI-8 Caterpillar CAT Electronic Control Module Caterpillar CID 74 FMI 8 - Desired Throttle Position: Abnormal Frequency, Pulse Width, or Period heavy-equipment Major View →
CID-144-FMI-8 Caterpillar CAT Electronic Control Module Caterpillar CID 144 FMI 8 - Swing Angle: Abnormal Frequency, Pulse Width, or Period heavy-equipment Minor View →
252-0 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 252 FMI 0 - Fuel Injector (Cylinder 2) Data Valid But Above Normal Range heavy-equipment Major View →
CID-36-FMI-2 Caterpillar CAT Electronic Control Module Caterpillar CID 36 FMI 2 - Air Conditioning Pressure: Data Erratic, Intermittent, or Incorrect heavy-equipment Minor View →
241-1 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 241 FMI 1 - Engine Speed-Timing Sensor (Camshaft) Data Valid But Below Normal Range heavy-equipment Major View →
351-18 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 351 FMI 18 - Radiator Coolant Pressure Sensor Data Valid But Below Normal Operating Range (Moderately Severe) heavy-equipment Minor View →
58-4 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 58 FMI 4 - Analog Temperature Sensor Voltage Below Normal/Shorted Low heavy-equipment Major View →
10-8 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 10 FMI 8 - Fuel Pressure Sensor Abnormal Frequency/Pulse Width heavy-equipment Major View →
291-0 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 291 FMI 0 - Transmission Temperature Sensor Data Valid But Above Normal Range heavy-equipment Major View →
351-13 Caterpillar Caterpillar Heavy Equipment Caterpillar CID 351 FMI 13 - Radiator Coolant Pressure Sensor Out of Calibration heavy-equipment Minor View →
CID-162-FMI-3 Caterpillar CAT Electronic Control Module Caterpillar CID 162 FMI 3 - Joystick Position #4: Voltage Above Normal, or Shorted to High Source heavy-equipment Minor View →