Caterpillar Fault Codes

1,290 codes

Product Lines:

EMCP 4.2
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All Generator (1,591) Heavy Equipment (1,290)
Code Model Error / Alarm Category Severity Action
451-0 Caterpillar Heavy Equipment Caterpillar CID 451 FMI 0 - Air Filter Restriction (High) Data Valid But Above Normal Range heavy-equipment Major View →
451-1 Caterpillar Heavy Equipment Caterpillar CID 451 FMI 1 - Air Filter Restriction (High) Data Valid But Below Normal Range heavy-equipment Major View →
451-13 Caterpillar Heavy Equipment Caterpillar CID 451 FMI 13 - Air Filter Restriction (High) Out of Calibration heavy-equipment Minor View →
451-15 Caterpillar Heavy Equipment Caterpillar CID 451 FMI 15 - Air Filter Restriction (High) Data Valid But Above Normal Operating Range (Least Severe) heavy-equipment Info View →
451-16 Caterpillar Heavy Equipment Caterpillar CID 451 FMI 16 - Air Filter Restriction (High) Data Valid But Above Normal Operating Range (Moderately Severe) heavy-equipment Minor View →
451-17 Caterpillar Heavy Equipment Caterpillar CID 451 FMI 17 - Air Filter Restriction (High) Data Valid But Below Normal Operating Range (Least Severe) heavy-equipment Info View →
451-18 Caterpillar Heavy Equipment Caterpillar CID 451 FMI 18 - Air Filter Restriction (High) Data Valid But Below Normal Operating Range (Moderately Severe) heavy-equipment Minor View →
451-2 Caterpillar Heavy Equipment Caterpillar CID 451 FMI 2 - Air Filter Restriction (High) Data Erratic/Intermittent heavy-equipment Minor View →
451-6 Caterpillar Heavy Equipment Caterpillar CID 451 FMI 6 - Air Filter Restriction (High) Current Above Normal/Grounded Circuit heavy-equipment Major View →
46-0 Caterpillar Heavy Equipment Caterpillar CID 46 FMI 0 - ECM Connector (Rack Sensor) Data Valid But Above Normal Range heavy-equipment Major View →
46-13 Caterpillar Heavy Equipment Caterpillar CID 46 FMI 13 - ECM Connector (Rack Sensor) Out of Calibration heavy-equipment Minor View →
46-15 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 →
46-18 Caterpillar Heavy Equipment Caterpillar CID 46 FMI 18 - ECM Connector (Rack Sensor) Data Valid But Below Normal Operating Range (Moderately Severe) heavy-equipment Minor View →
46-2 Caterpillar Heavy Equipment Caterpillar CID 46 FMI 2 - ECM Connector (Rack Sensor) Data Erratic/Intermittent heavy-equipment Minor View →
46-5 Caterpillar Heavy Equipment Caterpillar CID 46 FMI 5 - ECM Connector (Rack Sensor) Current Below Normal/Open Circuit heavy-equipment Major View →
46-6 Caterpillar Heavy Equipment Caterpillar CID 46 FMI 6 - ECM Connector (Rack Sensor) Current Above Normal/Grounded Circuit heavy-equipment Major View →
46-8 Caterpillar Heavy Equipment Caterpillar CID 46 FMI 8 - ECM Connector (Rack Sensor) Abnormal Frequency/Pulse Width heavy-equipment Major View →
461-0 Caterpillar Heavy Equipment Caterpillar CID 461 FMI 0 - Fuel Water Separator Sensor Data Valid But Above Normal Range heavy-equipment Major View →
461-1 Caterpillar Heavy Equipment Caterpillar CID 461 FMI 1 - Fuel Water Separator Sensor Data Valid But Below Normal Range heavy-equipment Major View →
461-16 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 →
461-18 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 →
461-2 Caterpillar Heavy Equipment Caterpillar CID 461 FMI 2 - Fuel Water Separator Sensor Data Erratic/Intermittent heavy-equipment Minor View →
461-3 Caterpillar Heavy Equipment Caterpillar CID 461 FMI 3 - Fuel Water Separator Sensor Voltage Above Normal/Shorted High heavy-equipment Major View →
461-5 Caterpillar Heavy Equipment Caterpillar CID 461 FMI 5 - Fuel Water Separator Sensor Current Below Normal/Open Circuit heavy-equipment Major View →
461-8 Caterpillar Heavy Equipment Caterpillar CID 461 FMI 8 - Fuel Water Separator Sensor Abnormal Frequency/Pulse Width heavy-equipment Major View →
471-13 Caterpillar Heavy Equipment Caterpillar CID 471 FMI 13 - Engine Over-speed Protection Out of Calibration heavy-equipment Minor View →
471-17 Caterpillar Heavy Equipment Caterpillar CID 471 FMI 17 - Engine Over-speed Protection Data Valid But Below Normal Operating Range (Least Severe) heavy-equipment Info View →
471-18 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 →
471-3 Caterpillar Heavy Equipment Caterpillar CID 471 FMI 3 - Engine Over-speed Protection Voltage Above Normal/Shorted High heavy-equipment Major View →
471-4 Caterpillar Heavy Equipment Caterpillar CID 471 FMI 4 - Engine Over-speed Protection Voltage Below Normal/Shorted Low heavy-equipment Major View →
471-5 Caterpillar Heavy Equipment Caterpillar CID 471 FMI 5 - Engine Over-speed Protection Current Below Normal/Open Circuit heavy-equipment Major View →
471-6 Caterpillar Heavy Equipment Caterpillar CID 471 FMI 6 - Engine Over-speed Protection Current Above Normal/Grounded Circuit heavy-equipment Major View →
481-0 Caterpillar Heavy Equipment Caterpillar CID 481 FMI 0 - Hydraulic Filter Restriction Switch Data Valid But Above Normal Range heavy-equipment Major View →
481-1 Caterpillar Heavy Equipment Caterpillar CID 481 FMI 1 - Hydraulic Filter Restriction Switch Data Valid But Below Normal Range heavy-equipment Major View →
481-13 Caterpillar Heavy Equipment Caterpillar CID 481 FMI 13 - Hydraulic Filter Restriction Switch Out of Calibration heavy-equipment Minor View →
481-15 Caterpillar Heavy Equipment Caterpillar CID 481 FMI 15 - Hydraulic Filter Restriction Switch Data Valid But Above Normal Operating Range (Least Severe) heavy-equipment Info View →
481-16 Caterpillar Heavy Equipment Caterpillar CID 481 FMI 16 - Hydraulic Filter Restriction Switch Data Valid But Above Normal Operating Range (Moderately Severe) heavy-equipment Minor View →
481-18 Caterpillar Heavy Equipment Caterpillar CID 481 FMI 18 - Hydraulic Filter Restriction Switch Data Valid But Below Normal Operating Range (Moderately Severe) heavy-equipment Minor View →
481-2 Caterpillar Heavy Equipment Caterpillar CID 481 FMI 2 - Hydraulic Filter Restriction Switch Data Erratic/Intermittent heavy-equipment Minor View →
481-3 Caterpillar Heavy Equipment Caterpillar CID 481 FMI 3 - Hydraulic Filter Restriction Switch Voltage Above Normal/Shorted High heavy-equipment Major View →
481-4 Caterpillar Heavy Equipment Caterpillar CID 481 FMI 4 - Hydraulic Filter Restriction Switch Voltage Below Normal/Shorted Low heavy-equipment Major View →
481-5 Caterpillar Heavy Equipment Caterpillar CID 481 FMI 5 - Hydraulic Filter Restriction Switch Current Below Normal/Open Circuit heavy-equipment Major View →
491-0 Caterpillar Heavy Equipment Caterpillar CID 491 FMI 0 - Transmission Filter Bypass Switch Data Valid But Above Normal Range heavy-equipment Major View →
491-1 Caterpillar Heavy Equipment Caterpillar CID 491 FMI 1 - Transmission Filter Bypass Switch Data Valid But Below Normal Range heavy-equipment Major View →
491-13 Caterpillar Heavy Equipment Caterpillar CID 491 FMI 13 - Transmission Filter Bypass Switch Out of Calibration heavy-equipment Minor View →
491-17 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 →
491-2 Caterpillar Heavy Equipment Caterpillar CID 491 FMI 2 - Transmission Filter Bypass Switch Data Erratic/Intermittent heavy-equipment Minor View →
491-3 Caterpillar Heavy Equipment Caterpillar CID 491 FMI 3 - Transmission Filter Bypass Switch Voltage Above Normal/Shorted High heavy-equipment Major View →
491-4 Caterpillar Heavy Equipment Caterpillar CID 491 FMI 4 - Transmission Filter Bypass Switch Voltage Below Normal/Shorted Low heavy-equipment Major View →
491-8 Caterpillar Heavy Equipment Caterpillar CID 491 FMI 8 - Transmission Filter Bypass Switch Abnormal Frequency/Pulse Width heavy-equipment Major View →
5-0 Caterpillar Heavy Equipment Caterpillar CID 5 FMI 0 - Inlet Manifold Air Temperature Sensor Data Valid But Above Normal Range heavy-equipment Major View →
5-13 Caterpillar Heavy Equipment Caterpillar CID 5 FMI 13 - Inlet Manifold Air Temperature Sensor Out of Calibration heavy-equipment Minor View →
5-15 Caterpillar Heavy Equipment Caterpillar CID 5 FMI 15 - Inlet Manifold Air Temperature Sensor Data Valid But Above Normal Operating Range (Least Severe) heavy-equipment Info View →
5-16 Caterpillar Heavy Equipment Caterpillar CID 5 FMI 16 - Inlet Manifold Air Temperature Sensor Data Valid But Above Normal Operating Range (Moderately Severe) heavy-equipment Minor View →
5-18 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 →
5-2 Caterpillar Heavy Equipment Caterpillar CID 5 FMI 2 - Inlet Manifold Air Temperature Sensor Data Erratic/Intermittent heavy-equipment Minor View →
5-4 Caterpillar Heavy Equipment Caterpillar CID 5 FMI 4 - Inlet Manifold Air Temperature Sensor Voltage Below Normal/Shorted Low heavy-equipment Major View →
5-5 Caterpillar Heavy Equipment Caterpillar CID 5 FMI 5 - Inlet Manifold Air Temperature Sensor Current Below Normal/Open Circuit heavy-equipment Major View →
5-6 Caterpillar Heavy Equipment Caterpillar CID 5 FMI 6 - Inlet Manifold Air Temperature Sensor Current Above Normal/Grounded Circuit heavy-equipment Major View →
5-8 Caterpillar Heavy Equipment Caterpillar CID 5 FMI 8 - Inlet Manifold Air Temperature Sensor Abnormal Frequency/Pulse Width heavy-equipment Major View →
51-13 Caterpillar Heavy Equipment Caterpillar CID 51 FMI 13 - Engine Speed-Timing Sensor (Rack Position) Out of Calibration heavy-equipment Minor View →
51-16 Caterpillar Heavy Equipment Caterpillar CID 51 FMI 16 - Engine Speed-Timing Sensor (Rack Position) Data Valid But Above Normal Operating Range (Moderately Severe) heavy-equipment Minor View →
51-17 Caterpillar Heavy Equipment Caterpillar CID 51 FMI 17 - Engine Speed-Timing Sensor (Rack Position) Data Valid But Below Normal Operating Range (Least Severe) heavy-equipment Info View →
51-2 Caterpillar Heavy Equipment Caterpillar CID 51 FMI 2 - Engine Speed-Timing Sensor (Rack Position) Data Erratic/Intermittent heavy-equipment Minor View →
51-6 Caterpillar Heavy Equipment Caterpillar CID 51 FMI 6 - Engine Speed-Timing Sensor (Rack Position) Current Above Normal/Grounded Circuit heavy-equipment Major View →
52-1 Caterpillar Heavy Equipment Caterpillar CID 52 FMI 1 - Injection Actuation Pressure Sensor (Rail) Data Valid But Below Normal Range heavy-equipment Major View →
52-15 Caterpillar Heavy Equipment Caterpillar CID 52 FMI 15 - Injection Actuation Pressure Sensor (Rail) Data Valid But Above Normal Operating Range (Least Severe) heavy-equipment Info View →
52-16 Caterpillar Heavy Equipment Caterpillar CID 52 FMI 16 - Injection Actuation Pressure Sensor (Rail) Data Valid But Above Normal Operating Range (Moderately Severe) heavy-equipment Minor View →
52-17 Caterpillar Heavy Equipment Caterpillar CID 52 FMI 17 - Injection Actuation Pressure Sensor (Rail) Data Valid But Below Normal Operating Range (Least Severe) heavy-equipment Info View →
52-2 Caterpillar Heavy Equipment Caterpillar CID 52 FMI 2 - Injection Actuation Pressure Sensor (Rail) Data Erratic/Intermittent heavy-equipment Minor View →
52-3 Caterpillar Heavy Equipment Caterpillar CID 52 FMI 3 - Injection Actuation Pressure Sensor (Rail) Voltage Above Normal/Shorted High heavy-equipment Major View →
52-4 Caterpillar Heavy Equipment Caterpillar CID 52 FMI 4 - Injection Actuation Pressure Sensor (Rail) Voltage Below Normal/Shorted Low heavy-equipment Major View →
52-8 Caterpillar Heavy Equipment Caterpillar CID 52 FMI 8 - Injection Actuation Pressure Sensor (Rail) Abnormal Frequency/Pulse Width heavy-equipment Major View →
55-0 Caterpillar Heavy Equipment Caterpillar CID 55 FMI 0 - Injection Actuation Pressure Control Valve (Current) Data Valid But Above Normal Range heavy-equipment Major View →
55-1 Caterpillar Heavy Equipment Caterpillar CID 55 FMI 1 - Injection Actuation Pressure Control Valve (Current) Data Valid But Below Normal Range heavy-equipment Major View →
55-13 Caterpillar Heavy Equipment Caterpillar CID 55 FMI 13 - Injection Actuation Pressure Control Valve (Current) Out of Calibration heavy-equipment Minor View →
55-15 Caterpillar Heavy Equipment Caterpillar CID 55 FMI 15 - Injection Actuation Pressure Control Valve (Current) Data Valid But Above Normal Operating Range (Least Severe) heavy-equipment Info View →