The Cummins ISX engine from 2007 to 2010 introduced improvements in emissions control, fuel efficiency, and electronic management. These engines used EGR and DPF systems to meet stricter emissions standards, while maintaining the power and reliability that made the ISX a favorite for heavy-duty trucks.
Knowing your fault codes can make the difference between quick repairs and costly downtime. This list helps you decode ISX fault codes fast—so you can get back on the road with confidence.
Cummins ISX (2007–2010) Engine Overview
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Displacement: 15L
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Horsepower Range: 400–600 HP
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Torque: Up to 2,050 lb-ft
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Emissions System: EGR + DPF
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Fuel System: Common Rail
Applications: Freightliner, Kenworth, Peterbilt, International, and other Class 8 trucks.
📍 Get FREE Fault Code Information for all makes and models in Diesel Repair → Diesel Repair
Fault Codes for Cummins ISX (2007–2010)
| Fault | PID | SPN | FMI | SID | Title |
| SPN 100 FMI 1 (415) | 100 | 100 | 1 | Engine Oil Rifle Pressure – Data Valid but Below Normal Operational Range – Most Severe Level | |
| SPN 100 FMI 18 (143) | 100 | 100 | 18 | Engine Oil Rifle Pressure – Data Valid but Below Normal Operational Range – Moderately Severe Level | |
| SPN 100 FMI 2 (435) | 100 | 100 | 2 | Engine Oil Rifle Pressure – Data Erratic, Intermittent, or Incorrect | |
| SPN 100 FMI 3 (135) | 100 | 100 | 3 | Engine Oil Rifle Pressure 1 Sensor Circuit – Voltage Above Normal, or Shorted to High Source | |
| SPN 100 FMI 4 (141) | 100 | 100 | 4 | Engine Oil Rifle Pressure 1 Sensor Circuit – Voltage Below Normal or Shorted to Low Source | |
| SPN 101 FMI 0 (556) | 101 | 101 | Crankcase Pressure – Data Valid but Above Normal Operating Range – Most Severe Level | ||
| SPN 101 FMI 15 (1974) | 101 | 101 | 15 | Crankcase Pressure – Data Valid but Above Normal Operating Range – Least Severe Level | |
| SPN 101 FMI 16 (555) | 101 | 101 | 16 | Crankcase Pressure – Data Valid but Above Normal Operating Range – Moderately Severe Level | |
| SPN 101 FMI 2 (1942) | 101 | 101 | 2 | Crankcase Pressure – Data Erratic, Intermittent, or Incorrect | |
| SPN 101 FMI 3 (1843) | 101 | 101 | 3 | Crankcase Pressure Circuit – Voltage Above Normal, or Shorted to High Source | |
| SPN 101 FMI 4 (1844) | 101 | 101 | 4 | Crankcase Pressure Circuit – Voltage Below Normal, or Shorted to Low Source | |
| SPN 102 FMI 16 (125) | 102 | 102 | 16 | Intake Manifold 1 Pressure – Data Valid but Below Normal Operating Range – Moderately Severe Level | |
| SPN 102 FMI 2 (2973) | 102 | 102 | 2 | Intake Manifold 1 Pressure – Data Erratic, Intermittent, or Incorrect | |
| SPN 102 FMI 3 (122) | 102 | 102 | 3 | Intake Manifold 1 Pressure Sensor Circuit – Voltage Above Normal or Shorted to High Source | |
| SPN 102 FMI 4 (123) | 102 | 102 | 4 | Intake Manifold 1 Pressure Sensor Circuit – Voltage Below Normal or Shorted to Low Source | |
| SPN 103 FMI 10 (2345) | 103 | 103 | 10 | Turbocharger 1 Speed – Abnormal Rate of Change | |
| SPN 103 FMI 15 (2288) | 103 | 103 | 15 | Turbocharger 1 Speed – Data Valid but Above Normal Operational Range – Least Severe Level | |
| SPN 103 FMI 18 (687) | 103 | 103 | 18 | Turbocharger 1 Speed – Data Valid but Below Normal Operating Range – Moderately Severe Level | |
| SPN 103 FMI 2 (686) | 103 | 103 | 2 | Turbocharger 1 Speed – Data Erratic, Intermittent, or Incorrect | |
| SPN 105 FMI 0 (155) | 105 | 105 | Intake Manifold 1 Temperature – Data Valid but Above Normal Operating Range – Most Severe Level | ||
| SPN 105 FMI 15 (2964) | 105 | 105 | 15 | Intake Manifold 1 Temperature – Data Valid but Above Normal Operational Range – Least Severe Level | |
| SPN 105 FMI 3 (153) | 105 | 105 | 3 | Intake Manifold 1 Temperature Sensor Circuit – Voltage Above Normal or Shorted to High Source | |
| SPN 105 FMI 4 (154) | 105 | 105 | 4 | Intake Manifold 1 Temperature Sensor Circuit – Voltage Below Normal or Shorted to Low Source | |
| SPN 1072 FMI 3 (2182) | 1072 | 3 | 79 | Engine Brake Actuator Driver 1 Circuit – Voltage Above Normal, or Shorted to High Source | |
| SPN 1072 FMI 4 (2183) | 1072 | 4 | 79 | Engine Brake Actuator Driver 1 Circuit – Voltage Below Normal, or Shorted to Low Source | |
| SPN 1073 FMI 3 (2367) | 1073 | 3 | 80 | Engine Brake Actuator Driver Output 2 Circuit – Voltage Above Normal, or Shorted to High Source | |
| SPN 1073 FMI 4 (2363) | 1073 | 4 | 80 | Engine Brake Actuator Driver Output 2 Circuit – Voltage Below Normal, or Shorted to Low Source | |
| SPN 108 FMI 2 (295) | 108 | 108 | 2 | Barometric Pressure – Data Erratic, Intermittent, or Incorrect | |
| SPN 108 FMI 3 (221) | 108 | 108 | 3 | Barometric Pressure Sensor Circuit – Voltage Above Normal or Shorted to High Source | |
| SPN 108 FMI 4 (222) | 108 | 108 | 4 | Barometric Pressure Sensor Circuit – Voltage Below Normal or Shorted to Low Source | |
| SPN 110 FMI 0 (151) | 110 | 110 | Engine Coolant Temperature – Data Valid but Above Normal Operational Range – Most Severe Level | ||
| SPN 110 FMI 15 (2963) | 110 | 110 | 15 | Engine Coolant Temperature – Data Valid but Above Normal Operational Range – Least Severe Level | |
| SPN 110 FMI 16 (146) | 110 | 110 | 16 | Engine Coolant Temperature – Data Valid but Above Normal Operational Range – Moderately Severe Level | |
| SPN 110 FMI 18 (2789) | 110 | 110 | 18 | Engine Coolant Temperature – Data Valid but Below Normal Operational Range – Moderately Severe Level | |
| SPN 110 FMI 31 (2646) | 110 | 110 | 31 | Engine Coolant Temperature – Condition Exists | |
| SPN 110 FMI 31 (2659) | 110 | 110 | 31 | Engine Coolant Temperature – Condition Exists | |
| SPN 110 FMI 3 (144) | 110 | 110 | 3 | Engine Coolant Temperature 1 Sensor Circuit – Voltage Above Normal or Shorted to High Source | |
| SPN 110 FMI 4 (145) | 110 | 110 | 4 | Engine Coolant Temperature 1 Sensor Circuit – Voltage Below Normal or Shorted to Low Source | |
| SPN 1112 FMI 3 (2368) | 1112 | 3 | 82 | Engine Brake Actuator Driver Output 3 Circuit – Voltage Above Normal, or Shorted to High Source | |
| SPN 1112 FMI 4 (2365) | 1112 | 4 | 82 | Engine Brake Actuator Driver Output 3 Circuit – Voltage Below Normal, or Shorted to Low Source | |
| SPN 111 FMI 17 (2448) | 111 | 17 | Coolant Level – Data Valid but Below Normal Operational Range – Least Severe Level | ||
| SPN 111 FMI 18 (197) | 111 | 111 | 18 | Coolant Level – Data Valid but Below Normal Operational Range – Moderately Severe Level | |
| SPN 111 FMI 3 (195) | 111 | 111 | 3 | Coolant Level Sensor 1 Circuit – Voltage Above Normal, or Shorted to High Source | |
| SPN 111 FMI 3 (195) | 111 | 111 | 3 | Coolant Level Sensor 1 Circuit – Voltage Above Normal, or Shorted to High Source | |
| SPN 111 FMI 4 (196) | 111 | 111 | 4 | Coolant Level Sensor 1 Circuit – Voltage Below Normal, or Shorted to Low Source | |
| SPN 111 FMI 4 (196) | 111 | 111 | 4 | Coolant Level Sensor 1 Circuit – Voltage Below Normal, or Shorted to Low Source | |
| SPN 1136 FMI 3 (697) | 21 | 1136 | 3 | ECM Internal Temperature Sensor Circuit – Voltage Above Normal or Shorted to High Source | |
| SPN 1136 FMI 4 (698) | 21 | 1136 | 4 | ECM Internal Temperature Sensor Circuit – Voltage Below Normal or Shorted to Low Source | |
| SPN 1172 FMI 3 (691) | 351 | 1172 | 3 | Turbocharger 1 Compressor Inlet Temperature Sensor Circuit – Voltage Above Normal, or Shorted to High Source | |
| SPN 1172 FMI 4 (692) | 351 | 1172 | 4 | Turbocharger 1 Compressor Inlet Temperature Sensor Circuit – Voltage Below Normal, or Shorted to Low Source | |
| SPN 1176 FMI 1 (3348) | 1176 | 1 | Turbocharger 1 Compressor Inlet Pressure – Data Valid but Below Normal Operating Range – Most Severe Level | ||
| SPN 1176 FMI 18 (629) | 1176 | 18 | Turbocharger 1 Compressor Inlet Pressure – Data Valid but Below Normal Operating Range – Moderately Severe Level | ||
| SPN 1209 FMI 16 (2764) | 131 | 1209 | 16 | Exhaust Gas Pressure – Data Valid but Above Normal Operating Range – Moderately Severe Level | |
| SPN 1209 FMI 2 (2554) | 131 | 1209 | 2 | Exhaust Gas Pressure – Data Erratic, Intermittent, or Incorrect | |
| SPN 1209 FMI 3 (2373) | 131 | 1209 | 3 | Exhaust Gas Pressure Sensor Circuit – Voltage Above Normal, or Shorted to High Source | |
| SPN 1209 FMI 4 (2374) | 131 | 1209 | 4 | Exhaust Gas Pressure Sensor Circuit – Voltage Below Normal, or Shorted to Low Source | |
| SPN 1244 FMI 31 (2313) | 1244 | 31 | 83 | Fuel Control Valve Solenoid Driver 2 Circuit – Condition Exists | |
| SPN 1245 FMI 31 (2314) | 1245 | 31 | 84 | Engine Timing Actuator Driver 2 Circuit Error – Condition Exists | |
| SPN 1267 FMI 3 (338) | 1267 | 3 | 87 | Idle Shutdown Vehicle Accessories Relay Driver Circuit – Voltage Above Normal, or Shorted to High Source | |
| SPN 1267 FMI 4 (339) | 1267 | 4 | 87 | Idle Shutdown Vehicle Accessories Relay Driver Circuit – Voltage Below Normal, or Shorted to Low Source | |
| SPN 1349 FMI 16 (2551) | 129 | 1349 | 16 | Injector Metering Rail 2 Pressure – Data Valid but Above Normal Operating Range – Moderately Severe Level | |
| SPN 1378 FMI 31 (649) | 1378 | 31 | 115 | Engine Oil Change Interval – Condition Exists | |
| SPN 157 FMI 16 (2552) | 157 | 157 | 16 | Injector Metering Rail 1 Pressure – Data Valid but Above Normal Operating Range – Moderately Severe Level | |
| SPN 1590 FMI 2 (784) | 1590 | 2 | 145 | Adaptive Cruise Control Mode – Data Erratic, Intermittent, or Incorrect | |
| SPN 1639 FMI 2 (2412) | 26 | 1639 | 2 | Fan Speed – Data Erratic, Intermittent, or Incorrect | |
| SPN 167 FMI 1 (598) | 167 | 167 | 1 | Electrical Charging System Voltage – Data Valid but Below Normal Operating Range – Most Severe Level | |
| SPN 167 FMI 16 (596) | 167 | 167 | 16 | Electrical Charging System Voltage – Data Valid but Above Normal Operating Range – Moderately Severe Level | |
| SPN 167 FMI 18 (597) | 167 | 167 | 18 | Electrical Charging System Voltage – Data Valid but Below Normal Operating Range – Moderately Severe Level | |
| SPN 168 FMI 16 (442) | 168 | 168 | 16 | Battery 1 Voltage – Data Valid but Above Normal Operational Range – Moderately Severe Level | |
| SPN 168 FMI 18 (441) | 168 | 168 | 18 | Battery 1 Voltage – Data Valid but Below Normal Operational Range – Moderately Severe Level | |
| SPN 171 FMI 3 (249) | 171 | 171 | 3 | Ambient Air Temperature Sensor 1 Circuit – Voltage Above Normal or Shorted to High Source | |
| SPN 171 FMI 4 (256) | 171 | 171 | 4 | Ambient Air Temperature Sensor 1 Circuit – Voltage Below Normal or Shorted to Low Source | |
| SPN 174 FMI 3 (263) | 174 | 174 | 3 | Engine Fuel Temperature Sensor 1 Circuit – Voltage Above Normal or Shorted to High Source | |
| SPN 174 FMI 4 (265) | 174 | 174 | 4 | Engine Fuel Temperature Sensor 1 Circuit – Voltage Below Normal or Shorted to Low Source | |
| SPN 175 FMI 0 (214) | 175 | 175 | Engine Oil Temperature High – Data Valid but Above Normal Operational Range – Most Severe Level | ||
| SPN 175 FMI 16 (421) | 175 | 175 | 16 | Engine Oil Temperature – Data Valid but Above Normal Operating Range – Moderately Severe Level | |
| SPN 175 FMI 3 (212) | 175 | 175 | 3 | Engine Oil Temperature Sensor 1 Circuit – Voltage Above Normal or Shorted to High Source | |
| SPN 175 FMI 4 (213) | 175 | 175 | 4 | Engine Oil Temperature Sensor 1 Circuit – Voltage Below Normal or Shorted to Low Source | |
| SPN 1818 FMI 31 (3374) | 1818 | 31 | Roll Over Protection Brake Control Active – Condition Exists | ||
| SPN 190 FMI 0 (234) | 190 | 190 | Engine Crankshaft Speed/Position – Data Valid but Above Normal Operational Range – Most Severe Level | ||
| SPN 190 FMI 16 (1992) | 190 | 190 | 16 | Engine Crankshaft Speed/Position – Data Valid but Above Normal Operating Range – Moderately Severe Level | |
| SPN 190 FMI 2 (2321) | 190 | 190 | 2 | Engine Crankshaft Speed/Position – Data Erratic, Intermittent, or Incorrect | |
| SPN 190 FMI 2 (689) | 190 | 190 | 2 | Engine Crankshaft Speed/Position – Data Erratic, Intermittent, or Incorrect | |
| SPN 251 FMI 2 (319) | 251 | 251 | 2 | Real-Time Clock Power Interrupt – Data Erratic, Intermittent or Incorrect | |
| SPN 2623 FMI 3 (1239) | 2623 | 3 | Accelerator Pedal or Lever Position Sensor 2 Circuit – Voltage Above Normal or Shorted to High Source | ||
| SPN 2623 FMI 4 (1241) | 2623 | 4 | Accelerator Pedal or Lever Position Sensor 2 Circuit – Voltage Below Normal or Shorted to Low Source | ||
| SPN 2789 FMI 15 (2346) | 2789 | 15 | Turbocharger Turbine Intake Temperature (Calculated) – Data Valid but Above Normal Operating Range – Least Severe Level | ||
| SPN 2789 FMI 16 (2451) | 2789 | 16 | Turbocharger Turbine Intake Temperature (Calculated) – Data Valid but Above Normal Operating Range – Moderately Severe Level | ||
| SPN 2790 FMI 15 (2347) | 2790 | 15 | Turbocharger Compressor Outlet Temperature (Calculated) – Data Valid but Above Normal Operational Range – Least Severe Level | ||
| SPN 2791 FMI 11 (1935) | 2791 | 11 | 146 | EGR Actuator Driver Circuit – Root Cause Not Known | |
| SPN 2791 FMI 12 (1895) | 2791 | 12 | 146 | EGR Valve Controller – Bad Intelligent Device or Component | |
| SPN 2791 FMI 13 (1896) | 2791 | 13 | 146 | EGR Valve Controller – Out of Calibration | |
| SPN 2791 FMI 14 (2813) | 2791 | 14 | 146 | EGR Valve Control – Special Instructions | |
| SPN 2791 FMI 15 (1961) | 2791 | 15 | 146 | EGR Valve Control Circuit Calculated Over Temperature – Data Valid but Above Normal Operational Range – Least Severe Level | |
| SPN 2791 FMI 4 (2351) | 2791 | 4 | 146 | EGR Valve Control Circuit – Voltage Below Normal, or Shorted to Low Source | |
| SPN 2791 FMI 5 (2349) | 2791 | 5 | 146 | EGR Valve Control Circuit – Current Below Normal, or Open Circuit | |
| SPN 2791 FMI 7 (2357) | 2791 | 7 | 146 | EGR Valve Control Circuit – Mechanical System Not Responding Properly or Out of Adjustment | |
| SPN 27 FMI 4 (2272) | 27 | 27 | 4 | EGR Valve Position Circuit – Voltage Below Normal, or Shorted to Low Source | |
| SPN 3050 FMI 31 (1664) | 3050 | 31 | 380 | Catalyst Missing – Condition Exists | |
| SPN 3058 FMI 31 (2774) | 3058 | 31 | 391 | Exhaust Gas Recirculation (EGR) System – Condition Exists | |
| SPN 3064 FMI 31 (1993) | 3064 | 31 | Aftertreatment Diesel Particulate Filter Missing – Condition Exists | ||
| SPN 3241 FMI 0 (1966) | 326 | 3241 | Aftertreatment Exhaust Gas Temperature 1 – Data Valid but Above Normal Operational Range – Most Severe Level | ||
| SPN 3241 FMI 2 (1667) | 3241 | 2 | 326 | Aftertreatment Exhaust Gas Temperature 1 – Data Erratic, Intermittent, or Incorrect | |
| SPN 3241 FMI 31 (1663) | SID 326 | 3241 | 31 | Aftertreatment Exhaust Gas Temperature 1 Swapped – Condition Exists | |
| SPN 3241 FMI 3 (1666) | 3241 | 3 | 326 | Aftertreatment Exhaust Gas Temperature 1 Circuit – Voltage Above Normal, or Shorted to High Source | |
| SPN 3241 FMI 4 (1665) | 3241 | 4 | 326 | Aftertreatment Exhaust Gas Temperature 1 Circuit – Voltage Below Normal or Shorted to Low Source | |
| SPN 3245 FMI 0 (1973) | 3245 | 328 | Exhaust Gas Temperature 3 – Data Valid but Above Normal Operational Range – Most Severe Level | ||
| SPN 3245 FMI 16 (1972) | 3245 | 16 | 328 | Exhaust Gas Temperature 3 – Data Valid but Above Normal Operational Range – Moderately Severe Level | |
| SPN 3245 FMI 2 (1878) | 3245 | 2 | 328 | Aftertreatment Exhaust Gas Temperature 3 – Data Erratic, Intermittent, or Incorrect | |
| SPN 3245 FMI 3 (1876) | 3245 | 3 | 328 | Aftertreatment Exhaust Gas Temperature 3 Circuit – Voltage Above Normal, or Shorted to High Source | |
| SPN 3245 FMI 4 (1877) | 3245 | 4 | 328 | Aftertreatment Exhaust Gas Temperature 3 Circuit – Voltage Below Normal, or Shorted to Low Source | |
| SPN 3249 FMI 0 (1969) | 3249 | 327 | Aftertreatment Exhaust Gas Temperature 2 – Data Valid but Above Normal Operational Range – Most Severe Level | ||
| SPN 3249 FMI 16 (1968) | 3249 | 16 | 327 | Aftertreatment Exhaust Gas Temperature 2 – Data Valid but Above Normal Operational Range – Moderately Severe Level | |
| SPN 3249 FMI 17 (2742) | 3249 | 17 | 327 | Aftertreatment Exhaust Gas Temperature 2 – Data Valid but Below Normal Operating Range – Least Severe Level | |
| SPN 3249 FMI 18 (2743) | 3249 | 18 | 327 | Aftertreatment Exhaust Gas Temperature 2 – Data Valid but Below Normal Operating Range – Moderately Severe Level | |
| SPN 3249 FMI 2 (1676) | 3249 | 2 | 327 | Aftertreatment Exhaust Gas Temperature 2 – Data Erratic, Intermittent, or Incorrect | |
| SPN 3249 FMI 3 (1675) | 3249 | 3 | 327 | Aftertreatment Exhaust Gas Temperature 2 Circuit – Voltage Above Normal or Shorted to High Source | |
| SPN 3249 FMI 4 (1674) | 3249 | 4 | 327 | Aftertreatment Exhaust Gas Temperature 2 Circuit – Voltage Below Normal or Shorted to Low Source | |
| SPN 3250 FMI 13 (1691) | 3250 | 13 | 380 | Catalyst Efficiency – Out of Calibration | |
| SPN 3251 FMI 0 (1922) | 3251 | 324 | Aftertreatment Diesel Particulate Filter Differential Pressure – Data Valid but Above Normal Operational Range – Most Severe Level | ||
| SPN 3251 FMI 15 (1981) | 3251 | 15 | 324 | Aftertreatment Particulate Filter Differential Pressure – Data Valid but Above Normal Operating Range – Least Severe Level | |
| SPN 3251 FMI 15 (1981) | 3251 | 15 | 324 | Aftertreatment Particulate Filter Differential Pressure – Data Valid but Above Normal Operating Range – Least Severe Level | |
| SPN 3251 FMI 15 (2639) | 3251 | 15 | 324 | Aftertreatment Diesel Particulate Filter Differential Pressure – Data Valid but Above Normal Operating Range – Least Severe Level | |
| SPN 3251 FMI 16 (1921) | 3251 | 16 | 324 | Aftertreatment Diesel Particulate Filter Differential Pressure – Data Valid but Above Normal Operational Range – Moderately Severe Level | |
| SPN 3251 FMI 2 (1883) | 3251 | 2 | 324 | Aftertreatment Particulate Filter Differential Pressure Sensor – Data Erratic, Intermittent, or Incorrect | |
| SPN 3251 FMI 2 (1893) | 3251 | 2 | 324 | EGR Valve Control Circuit – Abnormal Update Rate | |
| SPN 3251 FMI 3 (1879) | 3251 | 3 | 324 | Aftertreatment Particulate Filter Differential Pressure Sensor Circuit – Voltage Above Normal, or Shorted to High Source | |
| SPN 3251 FMI 4 (1881) | 3251 | 4 | 324 | Aftertreatment Particulate Filter Differential Pressure Sensor Circuit – Voltage Below Normal, or Shorted to Low Source | |
| SPN 3480 FMI 17 (2881) | 3480 | 17 | 332 | Aftertreatment Fuel Pressure Sensor – Data Valid but Below Normal Operational Range – Least Severe Level | |
| SPN 3480 FMI 2 (1926) | 3480 | 2 | Aftertreatment 1 Fuel Pressure Sensor – Data Erratic, Intermittent, or Incorrect | ||
| SPN 3480 FMI 3 (1927) | 3480 | 3 | Aftertreatment 1 Fuel Pressure Sensor – Voltage Above Normal, or Shorted to High Source | ||
| SPN 3480 FMI 4 (1928) | 3480 | 4 | Aftertreatment 1 Fuel Pressure Sensor – Voltage Below Normal, or Shorted to Low Source | ||
| SPN 3482 FMI 2 (1925) | 334 | 3482 | 2 | Aftertreatment Fuel Shutoff Valve 1 – Data Erratic, Intermittent, or Incorrect | |
| SPN 3482 FMI 31 (2741) | 3482 | 31 | 334 | Aftertreatment Fuel Shutoff Valve 1 Swapped – Condition Exists | |
| SPN 3482 FMI 3 (1923) | 3482 | 3 | 334 | Aftertreatment Fuel Shutoff Valve 1 Circuit – Voltage Above Normal, or Shorted to High Source | |
| SPN 3482 FMI 4 (1924) | 3482 | 4 | 334 | Aftertreatment Fuel Shutoff Valve 1 Circuit – Voltage Below Normal, or Shorted to Low Source | |
| SPN 3482 FMI 7 (1963) | 332 | 3482 | 7 | Aftertreatment Fuel Shutoff Valve 1 – Mechanical System Not Responding Properly or Out of Adjustment | |
| SPN 3509 FMI 3 (386) | 3509 | 3 | 212 | Sensor Supply 1 Circuit – Voltage Above Normal, or Shorted to High Source | |
| SPN 3509 FMI 4 (352) | 3509 | 4 | 212 | Sensor Supply 1 Circuit – Voltage Below Normal, or Shorted to Low Source | |
| SPN 3510 FMI 3 (227) | 3510 | 3 | 211 | Sensor Supply 2 Circuit – Voltage Above Normal or Shorted to High Source | |
| SPN 3510 FMI 4 (187) | 3510 | 4 | 211 | Sensor Supply 2 Circuit – Voltage Below Normal, or Shorted to Low Source | |
| SPN 3511 FMI 4 (238) | 3511 | 4 | 232 | Sensor Supply 3 Circuit – Voltage Below Normal or Shorted to Low Source | |
| SPN 3512 FMI 3 (2185) | 3512 | 3 | 232 | Sensor Supply 4 Circuit – Voltage Above Normal, or Shorted to High Source | |
| SPN 3512 FMI 4 (2186) | 3512 | 4 | 232 | Sensor Supply 4 Circuit – Voltage Below Normal, or Shorted to Low Source | |
| SPN 3513 FMI 3 (1695) | 3513 | 3 | 232 | Sensor Supply 5 – Voltage Above Normal, or Shorted to High Source | |
| SPN 3513 FMI 4 (1696) | 3513 | 4 | 232 | Sensor Supply 5 – Voltage Below Normal, or Shorted to Low Source | |
| SPN 3555 FMI 17 (1943) | 3555 | 17 | Ambient Air Density – Data Valid but Below Normal Operational Range – Least Severe Level | ||
| SPN 3556 FMI 11 (4283) | 3556 | 11 | Aftertreatment Doser – Data Valid but Below Normal Operating Range – Condition Exists | ||
| SPN 3556 FMI 18 (3167) | 3556 | 18 | 382 | Aftertreatment Doser – Data Valid but Below Normal Operating Range – Moderately Severe Level | |
| SPN 3556 FMI 2 (1932) | 3556 | 2 | Aftertreatment Fuel Injection System – Data Erratic, Intermittent, or Incorrect | ||
| SPN 3556 FMI 5 (1977) | 3556 | 5 | Aftertreatment Fuel Injector 1 Circuit – Current Below Normal, or Open Circuit | ||
| SPN 3597 FMI 18 (1938) | 3597 | 18 | 212 | ECU Power Output Supply Voltage 1 – Data Valid but Below Normal Operational Range – Moderately Severe Level | |
| SPN 3598 FMI 16 (1933) | 3598 | 16 | ECU Power Output Supply Voltage 2 – Data Valid but Above Normal Operational Range – Moderately Severe Level | ||
| SPN 3598 FMI 18 (1934) | 3598 | 18 | 211 | ECU Power Output Supply Voltage 2 – Data Valid but Below Normal Operational Range – Moderately Severe Level | |
| SPN 3703 FMI 31 (2777) | SID 390 | 3703 | 31 | Particulate Trap Active Regeneration Inhibited Due to Inhibit Switch – Condition Exists | |
| SPN 380 FMI 13 (2638) | 380 | 13 | Catalyst Efficiency – Out of Calibration | ||
| SPN 382 FMI 16 (2728) | 382 | 16 | Aftertreatment Fuel Injector 1 – Data Valid but Above Normal Operational Range – Moderately Severe Level | ||
| SPN 4097 FMI 2 (2879) | 4097 | 2 | 381 | Aftertreatment Fuel Drain Valve – Data Erratic, Intermittent, or Incorrect | |
| SPN 4097 FMI 3 (2732) | 4097 | 3 | 338 | Aftertreatment Fuel Drain Valve Circuit – Voltage Above Normal or Shorted to High Source | |
| SPN 4097 FMI 4 (2733) | 4097 | 4 | 338 | Aftertreatment Fuel Drain Valve Circuit – Voltage Below Normal or Shorted to Low Source | |
| SPN 4097 FMI 7 (2878) | 381 | 4097 | 7 | Aftertreatment Fuel Drain Valve – Mechanical System Not Responding Properly or Out of Adjustment | |
| SPN 411 FMI 16 (2359) | 411 | 411 | 16 | Exhaust Gas Recirculation Valve Differential Pressure – Data Valid but Above Normal Operating Range – Moderately Severe Level | |
| SPN 411 FMI 16 (3385) | 105 | 411 | 16 | Intake Manifold 1 Temperature – Data Valid but Below Normal Operating Range – Moderately Severe Level | |
| SPN 411 FMI 18 (1899) | 411 | 411 | 18 | Exhaust Gas Recirculation Valve Delta Pressure – Data Valid but Below Normal Operating Range – Moderately Severe Level | |
| SPN 411 FMI 2 (1866) | 411 | 411 | 2 | Exhaust Gas Recirculation Valve Delta Pressure – Data Erratic, Intermittent, or Incorrect | |
| SPN 411 FMI 3 (2273) | 411 | 411 | 3 | Exhaust Gas Recirculation Valve Delta Pressure Sensor Circuit – Voltage Above Normal, or Shorted to High Source | |
| SPN 411 FMI 4 (2274) | 411 | 411 | 4 | Exhaust Gas Recirculation Valve Delta Pressure Sensor Circuit – Voltage Below Normal, or Shorted to Low Source | |
| SPN 412 FMI 15 (2961) | 412 | 412 | 15 | Exhaust Gas Recirculation (EGR) Temperature – Data Valid but Above Normal Operating Range – Least Severe Level | |
| SPN 412 FMI 16 (2962) | 412 | 412 | 16 | Exhaust Gas Recirculation Temperature – Data Valid but Above Normal Operational Range – Moderately Severe Level | |
| SPN 412 FMI 3 (2375) | 412 | 412 | 3 | Exhaust Gas Recirculation Temperature Sensor Circuit – Voltage Above Normal or Shorted to High Source | |
| SPN 412 FMI 4 (2376) | 412 | 412 | 4 | Exhaust Gas Recirculation Temperature Sensor Circuit – Voltage Below Normal, or Shorted to Low Source | |
| SPN 5018 FMI 11 (2637) | 5018 | 11 | Catalyst Face Plugged – Root Cause Not Known | ||
| SPN 5018 FMI 18 (4214) | 5018 | 18 | Aftertreatment 1 Diesel Oxidation Catalyst System – Data Valid but Below Normal Operating Range – Moderately Severe Level | ||
| SPN 5018 FMI 18 (4214) | 5018 | 18 | Aftertreatment 1 Diesel Oxidation Catalyst System – Data Valid But Below Normal Operating Range – Moderately Severe Level | ||
| SPN 5298 FMI 13 (4282) | 5298 | 13 | Aftertreatment Diesel Oxidation Catalyst Conversion Efficiency – Condition Exists | ||
| SPN 563 FMI 9 (3488) | 563 | 9 | Anti-Lock Braking (ABS) Controller – Abnormal Update Rate | ||
| SPN 612 FMI 2 (115) | 190 | 612 | 2 | Engine Magnetic Speed/Position Lost Both of Two Signals – Data Erratic, Intermittent, or Incorrect | |
| SPN 626 FMI 3 (2738) | 626 | 3 | 237 | Start Enable Device 1 Circuit (Ether Injection) – Voltage Above Normal or Shorted to High Source | |
| SPN 626 FMI 4 (2739) | 626 | 4 | 237 | Start Enable Device 1 Circuit (Ether Injection) – Voltage Below Normal or Shorted to Low Source | |
| SPN 627 FMI 12 (351) | 627 | 12 | 251 | Injector Power Supply – Bad Intelligent Device or Component | |
| SPN 627 FMI 2 (1117) | 627 | 2 | 251 | Power Supply Lost With Ignition On – Data Erratic, Intermittent, or Incorrect | |
| SPN 629 FMI 12 (111) | 629 | 12 | 254 | Electronic Control Module Critical Internal Failure – Bad Intelligent Device or Component | |
| SPN 629 FMI 12 (343) | 629 | 12 | 254 | Electronic Control Module Warning Internal Hardware Failure – Bad Intelligent Device or Component | |
| SPN 630 FMI 12 (346) | 253 | 630 | 12 | Engine Control Module Calibration Memory Software – Bad Intelligent Device or Component | |
| SPN 632 FMI 3 (255) | 632 | 3 | 17 | Engine Fuel Shutoff Valve Driver Circuit – Voltage Above Normal or Shorted to High Source | |
| SPN 632 FMI 4 (254) | 632 | 4 | 17 | Engine Fuel Shutoff Valve Driver Circuit – Voltage Below Normal or Shorted to Low Source | |
| SPN 632 FMI 7 (257) | 632 | 7 | 17 | Engine Fuel Shutoff Valve Driver – Mechanical System Not Responding Properly or Out of Adjustment | |
| SPN 633 FMI 31 (2311) | 633 | 31 | 18 | Electronic Fuel Injection Control Valve Circuit – Condition Exists | |
| SPN 635 FMI 31 (2312) | 635 | 31 | 20 | Timing Actuator Driver Circuit – Condition Exists | |
| SPN 639 FMI 13 (286) | 639 | 13 | 231 | SAE J1939 Multiplexing Configuration Error – Out of Calibration | |
| SPN 639 FMI 9 (285) | 639 | 9 | 231 | SAE J1939 Multiplexing PGN Timeout Error – Abnormal Update Rate | |
| SPN 639 FMI 9 (427) | 639 | 9 | 231 | SAE J1939 Datalink – Abnormal Update Rate | |
| SPN 641 FMI 11 (2198) | 641 | 11 | 27 | VGT Actuator Driver Circuit – Root Cause Not Known | |
| SPN 641 FMI 12 (2634) | 641 | 12 | 27 | VGT Actuator Controller – Bad Intelligent Device or Component | |
| SPN 641 FMI 13 (2449) | 641 | 13 | 27 | VGT Actuator Controller – Out of Calibration | |
| SPN 641 FMI 15 (1962) | 641 | 15 | 27 | VGT Actuator Driver Over Temperature (Calculated) – Data Valid but Above Normal Operational Range – Least Severe Level | |
| SPN 641 FMI 31 (2635) | 641 | 31 | 27 | VGT Actuator Driver Circuit – Condition Exists | |
| SPN 641 FMI 7 (2387) | 641 | 7 | 27 | Variable Geometry Turbocharger (VGT) Actuator Driver Circuit (Motor) – Mechanical System Not Responding Properly or Out of Adjustment | |
| SPN 641 FMI 7 (3616) | 641 | 7 | Engine Variable Geometry Turbocharger (VGT) Nozzle Position – Mechanical System Not Responding or Out of Adjustment | ||
| SPN 641 FMI 9 (2636) | 641 | 9 | 27 | VGT Actuator Driver Circuit – Abnormal Update Rate | |
| SPN 647 FMI 3 (2377) | 647 | 3 | 33 | Fan Control Circuit – Voltage Above Normal, or Shorted to High Source | |
| SPN 647 FMI 4 (245) | 647 | 4 | 33 | Fan Control Circuit – Voltage Below Normal or Shorted to Low Source | |
| SPN 648 FMI 18 (2319) | 648 | 18 | Exhaust Back Pressure – Data Valid but Below Normal Operating Range – Moderately Severe Level | ||
| SPN 651 FMI 6 (311) | 651 | 6 | 1 | Injector Solenoid Driver Cylinder 1 Circuit – Current Above Normal or Grounded Circuit | |
| SPN 652 FMI 6 (315) | 652 | 6 | 2 | Injector Solenoid Driver Cylinder 2 Circuit – Current Above Normal or Grounded Circuit | |
| SPN 653 FMI 6 (313) | 653 | 6 | 3 | Injector Solenoid Driver Cylinder 3 Circuit – Current Above Normal or Grounded Circuit | |
| SPN 654 FMI 6 (321) | 654 | 6 | 4 | Injector Solenoid Driver Cylinder 4 Circuit – Current Above Normal, or Grounded Circuit | |
| SPN 655 FMI 6 (312) | 655 | 6 | 5 | Injector Solenoid Driver Cylinder 5 Circuit – Current Above Normal or Grounded Circuit | |
| SPN 656 FMI 5 (322) | 656 | 5 | 6 | Injector Solenoid Driver Cylinder 1 Circuit – Current Below Normal, or Open Circuit | |
| SPN 656 FMI 5 (323) | 656 | 5 | 6 | Injector Solenoid Driver Cylinder 5 Circuit – Current Below Normal, or Open Circuit | |
| SPN 656 FMI 5 (324) | 656 | 5 | 6 | Injector Solenoid Driver Cylinder 3 Circuit – Current Below Normal, or Open Circuit | |
| SPN 656 FMI 5 (325) | 656 | 5 | 6 | Injector Solenoid Driver Cylinder 6 Circuit – Current Below Normal or Open Circuit | |
| SPN 656 FMI 5 (331) | 656 | 5 | 6 | Injector Solenoid Driver Cylinder 2 Circuit – Current Below Normal, or Open Circuit | |
| SPN 656 FMI 5 (332) | 656 | 5 | 6 | Injector Solenoid Driver Cylinder 4 Circuit – Current Below Normal, or Open Circuit | |
| SPN 656 FMI 6 (314) | 656 | 6 | 6 | Injector Solenoid Driver Cylinder 6 Circuit – Current Above Normal or Grounded Circuit | |
| SPN 677 FMI 3 (584) | 677 | 3 | 39 | Starter Relay Driver Circuit – Voltage Above Normal, or Shorted to High Source | |
| SPN 677 FMI 4 (585) | 677 | 4 | 39 | Starter Relay Driver Circuit – Voltage Below Normal, or Shorted to Low Source | |
| SPN 703 FMI 14 (2195) | 703 | 14 | 51 | Auxiliary Equipment Sensor Input 3 Engine Protection Critical – Special Instructions | |
| SPN 723 FMI 2 (2322) | 723 | 2 | 64 | Engine Camshaft Speed/Position Sensor – Data Erratic, Intermittent, or Incorrect | |
| SPN 723 FMI 2 (778) | 723 | 2 | 64 | Engine Camshaft Speed/Position Sensor – Data Erratic, Intermittent, or Incorrect | |
| SPN 723 FMI 7 (731) | 723 | 7 | 64 | Engine Speed/Position Camshaft and Crankshaft Misalignment – Mechanical System Not Responding Properly, or Out of Adjustment | |
| SPN 81 FMI 16 (2754) | 81 | 81 | 16 | Engine Particulate Filter Inlet Pressure – Data Valid but Above Normal Operational Range – Moderately Severe Level | |
| SPN 84 FMI 10 (242) | 84 | 84 | 10 | Wheel-Based Vehicle Speed Sensor Circuit Tampering Has Been Detected – Abnormal Rate of Change | |
| SPN 84 FMI 2 (241) | 84 | 84 | 2 | Wheel-Based Vehicle Speed – Data Erratic, Intermittent or Incorrect | |
| SPN 862 FMI 3 (3733) | 862 | 3 | Crankcase Breather Filter Heater Circuit – Voltage Above Normal or Shorted to High Source | ||
| SPN 862 FMI 4 (3734) | 862 | 4 | Crankcase Breather Filter Heater Circuit – Voltage Below Normal or Shorted to Low Source | ||
| SPN 91 FMI 19 (287) | 91 | 91 | 19 | SAE J1939 Multiplexed Accelerator Pedal or Lever Sensor System – Received Network Data In Error | |
| SPN 91 FMI 2 (1242) | 91 | 91 | 2 | Accelerator Pedal or Lever Position Sensor 1 and 2 – Data Erratic, Intermittent, or Incorrect | |
| SPN 91 FMI 3 (131) | 91 | 91 | 3 | Accelerator Pedal or Lever Position Sensor 1 Circuit – Voltage Above Normal or Shorted to High Source | |
| SPN 91 FMI 4 (132) | 91 | 91 | 4 | Accelerator Pedal or Lever Position Sensor 1 Circuit – Voltage Below Normal or Shorted to Low Source | |
| SPN 94 FMI 16 (2216) | 94 | 94 | 16 | Fuel Pump Delivery Pressure – Data Valid but Above Normal Operational Range – Moderately Severe Level | |
| SPN 94 FMI 18 (2215) | 94 | 94 | 18 | Fuel Pump Delivery Pressure – Data Valid but Below Normal Operating Range – Moderately Severe Level | |
| SPN 94 FMI 18 (482) | 94 | 94 | 18 | Fuel Pressure Low – Data Valid but Below Normal Operational Range – Moderately Severe Level | |
| SPN 94 FMI 3 (546) | 94 | 94 | 3 | Fuel Delivery Pressure Sensor Circuit – Voltage Above Normal, or Shorted to High Source | |
| SPN 94 FMI 4 (547) | 94 | 94 | 4 | Fuel Delivery Pressure Sensor Circuit – Voltage Below Normal, or Shorted to Low Source | |
| SPN 95 FMI 16 (2372) | 95 | 95 | 16 | Fuel Filter Differential Pressure – Data Valid but Above Normal Operational Range – Moderately Severe Level | |
| SPN 974 FMI 19 (288) | 372 | 974 | 19 | SAE J1939 Multiplexing Remote Accelerator Pedal or Lever Position Sensor System – Received Network Data In Error | |
| SPN 974 FMI 3 (133) | 372 | 974 | 3 | Remote Accelerator Pedal or Lever Position Sensor 1 Circuit – Voltage Above Normal or Shorted to High Source | |
| SPN 974 FMI 4 (134) | 372 | 974 | 4 | Remote Accelerator Pedal or Lever Position Sensor 1 Circuit – Voltage Below Normal or Shorted to Low Source | |
| SPN 97 FMI 15 (418) | 97 | 97 | 15 | Water-In-Fuel Indicator – Data Valid but Above Normal Operating Range – Least Severe Level | |
| SPN 97 FMI 3 (428) | 97 | 97 | 3 | Water-in-Fuel Indicator Sensor Circuit – Voltage Above Normal, or Shorted to High Source | |
| SPN 97 FMI 4 (429) | 97 | 97 | 4 | Water-in-Fuel Indicator Sensor Circuit – Voltage Below Normal, or Shorted to Low Source |
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