The Cummins B6.7 engine, used widely across medium-duty trucks, buses, and vocational equipment, continued to deliver strong performance and reliability through 2017–2020. Known for its balance of fuel efficiency and torque, the B6.7 is equipped with updated emissions technology and onboard diagnostics that help keep fleets compliant and trucks on the road.
When a fault code appears, quick access to code meanings, repair paths, and spec data can make all the difference. Diesel Repair provides in-depth, plain-English fault code definitions for Cummins B6.7 engines—plus links to wiring diagrams, remove-and-replace instructions, and more.
Cummins B6.7 (2017–2020) Overview
- Displacement: 6.7L
- Horsepower Range: 200–325 HP
- Torque: Up to 750 lb-ft
- Emissions System: SCR + DPF + EGR
- Fuel System: High-Pressure Common Rail
- Applications: Freightliner M2, International MV, Blue Bird buses, and more
🔗 Get FREE Fault Code Information for all makes and models in Diesel Repair → Diesel Repair
Fault Codes for Cummins B6.7 (2017–2020)
| Fault | PID | SPN | FMI | Title |
| SPN 100 FMI 1 (415) | 100 | 100 | 1 | Engine Oil Rifle Pressure – Data Valid but Below Normal Operating Range – Most Severe Level |
| SPN 100 FMI 18 (143) | 100 | 100 | 18 | Engine Oil Rifle Pressure – Data Valid but Below Normal Operating Range – Moderately Severe Level |
| SPN 100 FMI 2 (435) | 100 | 100 | 2 | Engine Oil Rifle Pressure – Data Erratic, Intermittent, or Incorrect |
| 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 10 (3361) | 102 | 10 | Intake Manifold 1 Pressure – Abnormal Rate of Change | |
| SPN 102 FMI 1 (4729) | 102 | 1 | Intake Manifold 1 Pressure – Data Valid But Below Normal Operating Range – Most Severe Level | |
| SPN 102 FMI 16 (124) | 102 | 102 | 16 | Intake Manifold 1 Pressure – Data Valid but Above Normal Operating Range – Moderately Severe Level |
| SPN 102 FMI 1 (7233) | 102 | 1 | Engine Intake Manifold Pressure – Data Valid But Below Normal Operating Range – Most Severe Level | |
| SPN 102 FMI 18 (125) | 102 | 102 | 18 | Intake Manifold 1 Pressure – Data Valid but Below Normal Operating Range – Moderately Severe Level |
| SPN 102 FMI 20 (5989) | 102 | 20 | Intake Manifold 1 Pressure – Data Not Rational – Drifted High | |
| SPN 102 FMI 21 (5991) | 102 | 21 | Intake Manifold 1 Pressure – Data Not Rational – Drifted Low | |
| 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 15 (2288) | 103 | 103 | 15 | Turbocharger 1 Speed – Data Valid but Above Normal Operating Range – Least Severe Level |
| SPN 103 FMI 16 (595) | 103 | 103 | 16 | Turbocharger 1 Speed – Data Valid but Above Normal Operating Range – Moderately 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 7 (5943) | 103 | 7 | Engine Turbocharger 1 Speed – Mechanical System Not Responding or Out of Adjustment | |
| 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 16 (488) | 105 | 105 | 16 | Intake Manifold 1 Temperature – Data Valid but Above Normal Operating Range – Moderately Severe Level |
| SPN 105 FMI 2 (436) | 105 | 105 | 2 | Intake Manifold 1 Temperature – Data Erratic, Intermittent, or Incorrect |
| 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 1075 FMI 4 (6259) | 1075 | 4 | Electric Lift Pump for Engine Fuel Supply – Voltage Below Normal or Shorted to Low Source | |
| SPN 1081 FMI 19 (3556) | 1081 | 19 | Engine Wait to Start Lamp – Received Network Data in Error | |
| SPN 1081 FMI 31 (4252) | 1081 | 31 | Engine Wait to Start Lamp – Condition Exists | |
| SPN 1081 FMI 7 (3494) | 1081 | 7 | Engine Wait to Start Lamp – Mechanical System Not Responding or Out of Adjustment | |
| SPN 1081 FMI 9 (3555) | 1081 | 9 | Engine Wait to Start Lamp – Abnormal Update Rate | |
| SPN 110 FMI 0 (151) | 110 | 110 | Engine Coolant Temperature – Data Valid but Above Normal Operating 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 2 (334) | 110 | 110 | 2 | Engine Coolant Temperature – Data Erratic, Intermittent, or Incorrect |
| SPN 110 FMI 31 (2646) | 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 111 FMI 1 (235) | 111 | 111 | 1 | Coolant Level – Data Valid But Below Normal Operating Range – Most Severe Level |
| SPN 111 FMI 17 (2448) | 2560 | 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 18 (3366) | 111 | 18 | Coolant Level – Data Valid but Below Normal Operating 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 4 (196) | 111 | 111 | 4 | Coolant Level Sensor 1 Circuit – Voltage Below Normal or Shorted to Low Source |
| SPN 1172 FMI 2 (693) | 351 | 1172 | 2 | Turbocharger 1 Compressor Intake Temperature – Data Erratic, Intermittent, or Incorrect |
| SPN 1172 FMI 3 (691) | 351 | 1172 | 3 | Turbocharger 1 Compressor Intake Temperature Circuit – Voltage Above Normal or Shorted to High Source |
| SPN 1172 FMI 4 (692) | 351 | 1172 | 4 | Turbocharger 1 Compressor Intake Temperature Circuit – Voltage Below Normal or Shorted to Low Source |
| SPN 1176 FMI 2 (743) | 1176 | 2 | Turbocharger 1 Compressor Intake Pressure – Data Erratic, Intermittent, or Incorrect | |
| SPN 1176 FMI 3 (741) | 1176 | 3 | Turbocharger 1 Compressor Intake Pressure Circuit – Voltage Above Normal or Shorted to High Source | |
| SPN 1176 FMI 4 (742) | 1176 | 4 | Turbocharger 1 Compressor Intake Pressure Circuit – Voltage Below Normal or Shorted to Low Source | |
| SPN 1209 FMI 17 (7273) | 1209 | 17 | Exhaust Gas Pressure – Data Valid But Below Normal Operating Range – Least Severe Level | |
| SPN 1209 FMI 18 (4728) | 1209 | 18 | Exhaust Gas Pressure – Data Valid But Below 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 1239 FMI 16 (4726) | 1239 | 16 | Engine Fuel Leakage – Data Valid but Above Normal Operating Range – Moderately Severe Level | |
| SPN 1267 FMI 3 (338) | 1267 | 3 | Idle Shutdown Vehicle Accessories Relay Driver Circuit – Voltage Above Normal or Shorted to High Source | |
| SPN 1267 FMI 4 (339) | 1267 | 4 | Idle Shutdown Vehicle Accessories Relay Driver Circuit – Voltage Below Normal or Shorted to Low Source | |
| SPN 1322 FMI 11 (5914) | 1322 | 11 | Engine Misfire for Multiple Cylinders – Root Cause Not Known | |
| SPN 1322 FMI 31 (1718) | 1322 | 31 | Engine Misfire for Multiple Cylinders – Condition Exists | |
| SPN 1323 FMI 11 (5895) | 1323 | 11 | Engine Misfire Cylinder No. 1 – Root Cause Not Known | |
| SPN 1323 FMI 31 (1654) | 1323 | 31 | Engine Misfire Cylinder 1 – Condition Exists | |
| SPN 1324 FMI 11 (5896) | 1324 | 11 | Engine Misfire Cylinder No. 2 – Root Cause Not Known | |
| SPN 1324 FMI 31 (1655) | 1324 | 31 | Engine Misfire Cylinder 2 – Condition Exists | |
| SPN 1325 FMI 11 (5897) | 1325 | 11 | Engine Misfire Cylinder No. 3 – Root Cause Not Known | |
| SPN 1325 FMI 31 (1656) | 1325 | 31 | Engine Misfire Cylinder 3 – Condition Exists | |
| SPN 1326 FMI 11 (5898) | 1326 | 11 | Engine Misfire Cylinder No. 4 – Root Cause Not Known | |
| SPN 1326 FMI 31 (1657) | 1326 | 31 | Engine Misfire Cylinder 4 – Condition Exists | |
| SPN 1327 FMI 11 (5899) | 1327 | 11 | Engine Misfire Cylinder No. 5 – Root Cause Not Known | |
| SPN 1327 FMI 31 (1658) | 1327 | 31 | Engine Misfire Cylinder 5 – Condition Exists | |
| SPN 1328 FMI 11 (5911) | 1328 | 11 | Engine Misfire Cylinder No. 6 – Root Cause Not Known | |
| SPN 1328 FMI 31 (1659) | 1328 | 31 | Engine Misfire Cylinder 6 – Condition Exists | |
| SPN 1347 FMI 2 (3332) | 1347 | 2 | Engine Fuel Pump Pressurizing Assembly 1 – Data Erratic, Intermittent, or Incorrect | |
| SPN 1347 FMI 3 (272) | 1347 | 3 | Engine Fuel Pump Pressurizing Assembly 1 Circuit – Voltage Above Normal or Shorted to High Source | |
| SPN 1347 FMI 4 (271) | 1347 | 4 | Engine Fuel Pump Pressurizing Assembly 1 Circuit – Voltage Below Normal or Shorted to Low Source | |
| SPN 1349 FMI 3 (483) | 129 | 1349 | 3 | Injector Metering Rail 2 Pressure Sensor Circuit – Voltage Above Normal or Shorted To High Source |
| SPN 1349 FMI 4 (484) | 129 | 1349 | 4 | Injector Metering Rail 2 Pressure Sensor Circuit – Voltage Below Normal or Shorted To Low Source |
| SPN 1378 FMI 31 (649) | 1378 | 31 | Engine Oil Change Interval – Condition Exists | |
| SPN 1569 FMI 15 (6255) | 1569 | 15 | Engine Protection Torque Derate – Data Valid but Above Normal Operating Range – Least Severe Level | |
| SPN 1569 FMI 31 (3714) | 1569 | 31 | Engine Protection Torque Derate – Condition Exists | |
| SPN 157 FMI 15 (4727) | 157 | 15 | Injector Metering Rail 1 Pressure – Data Valid but Above Normal Operating Range – Least Severe Level | |
| SPN 157 FMI 16 (553) | 157 | 157 | 16 | Injector Metering Rail 1 Pressure – Data Valid but Above Normal Operating Range – Moderately Severe Level |
| SPN 157 FMI 18 (559) | 157 | 157 | 18 | Injector Metering Rail 1 Pressure – Data Valid but Below Normal Operating Range – Moderately Severe Level |
| SPN 157 FMI 3 (451) | 157 | 157 | 3 | Injector Metering Rail 1 Pressure Sensor Circuit – Voltage Above Normal or Shorted to High Source |
| SPN 157 FMI 4 (452) | 157 | 157 | 4 | Injector Metering Rail 1 Pressure Sensor Circuit – Voltage Below Normal or Shorted to Low Source |
| SPN 157 FMI 7 (755) | 157 | 157 | 7 | Injector Metering Rail 1 Pressure – Mechanical System Not Responding or Out of Adjustment |
| SPN 1590 FMI 19 (7426) | 1590 | 19 | Adaptive Cruise Control Mode – Received Network Data in Error | |
| SPN 1590 FMI 2 (784) | 1590 | 2 | Adaptive Cruise Control Mode – Data Erratic, Intermittent, or Incorrect | |
| SPN 1590 FMI 9 (7425) | 1590 | 9 | Adaptive Cruise Control Mode – Abnormal Update Rate | |
| SPN 1623 FMI 9 (3186) | 1623 | 9 | Tachograph Output Shaft Speed – Abnormal Update Rate | |
| SPN 1675 FMI 31 (3737) | 1675 | 31 | Engine Starter Mode Over Crank Protection – Condition Exists | |
| 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 Operational Range – Moderately Severe Level |
| SPN 168 FMI 15 (6256) | 168 | 15 | Battery 1 Voltage – Data Valid but Above Normal Operating Range – Least Severe Level | |
| SPN 168 FMI 17 (6257) | 168 | 17 | Battery 1 Voltage – Data Valid but Below Normal Operating Range – Least Severe Level | |
| SPN 171 FMI 2 (2398) | 171 | 171 | 2 | Ambient Air Temperature – Data Erratic, Intermittent, or Incorrect |
| 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 171 FMI 9 (3531) | 171 | 9 | Ambient Air Temperature – Abnormal Update Rate | |
| SPN 1761 FMI 10 (4769) | 1761 | 10 | Aftertreatment 1 Diesel Exhaust Fluid Tank Level Sensor – Abnormal Rate of Change | |
| SPN 1761 FMI 11 (4739) | 1761 | 11 | Aftertreatment 1 Diesel Exhaust Fluid Tank Level Sensor – Root Cause Not Known | |
| SPN 1761 FMI 1 (1673) | 1761 | 1 | Aftertreatment 1 Diesel Exhaust Fluid Tank Level – Data Valid but Below Normal Operating Range – Most Severe Level | |
| SPN 1761 FMI 13 (4732) | 1761 | 13 | Aftertreatment Diesel Exhaust Fluid Tank Level Sensor – Out of Calibration | |
| SPN 1761 FMI 17 (3497) | 1761 | 17 | Aftertreatment Diesel Exhaust Fluid Tank Level – Data Valid but Below Normal Operating Range – Least Severe Level | |
| SPN 1761 FMI 18 (3498) | 1761 | 18 | Aftertreatment Diesel Exhaust Fluid Tank Level – Data Valid but Below Normal Operating Range – Moderately Severe Level | |
| SPN 1761 FMI 3 (1669) | 1761 | 3 | DEF Tank Level Sensor Circuit – Voltage Above Normal or Shorted to High Source | |
| SPN 1761 FMI 4 (1668) | 1761 | 4 | DEF Tank Level Sensor Circuit – Voltage Below Normal or Shorted to Low Source | |
| SPN 1761 FMI 9 (4677) | 1761 | 9 | SAE J1939 Multiplexing PGN Timeout Error – Abnormal Update Rate | |
| SPN 1818 FMI 31 (3374) | 1818 | 31 | Roll Over Protection Brake Control Active – Condition Exists | |
| SPN 188 FMI 16 (3715) | 188 | 16 | Engine Speed at Idle – Data Valid but Below Normal Operating Range – Moderately Severe Level | |
| SPN 188 FMI 17 (7234) | 188 | 17 | Engine Speed At Idle – Data Valid But Below Normal Operating Range – Least Severe Level | |
| SPN 188 FMI 18 (3716) | 188 | 18 | Engine Speed at Idle – Data Valid but Below Normal Operational Range – Moderately Severe Level | |
| SPN 190 FMI 0 (234) | 190 | 190 | Engine Crankshaft Speed / Position – Data Valid but Above Normal Operating Range – Most Severe Level | |
| SPN 190 FMI 11 (6595) | 190 | 11 | Engine Speed – Root Cause Not Known | |
| SPN 190 FMI 16 (2468) | 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 191 FMI 19 (3418) | 191 | 19 | Transmission Output Shaft Speed – Received Network Data in Error | |
| SPN 191 FMI 9 (3328) | 191 | 9 | Transmission Output Shaft Speed – Abnormal Update Rate | |
| SPN 237 FMI 13 (4517) | 237 | 13 | Vehicle Identification Number – Out of Calibration | |
| SPN 251 FMI 10 (3492) | 251 | 10 | Real Time Clock – Abnormal Rate of Change | |
| 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 2623 FMI 8 (4149) | 2623 | 8 | Accelerator Pedal or Lever Position Sensor 2 Circuit Frequency – Abnormal Frequency or Pulse Width or Period | |
| SPN 2791 FMI 13 (1896) | 2791 | 13 | EGR Valve Controller – Out of Calibration | |
| SPN 2791 FMI 15 (1961) | 2791 | 15 | EGR Valve Control Circuit Calculated Over Temperature – Data Valid but Above Normal Operational Range – Least Severe Level | |
| SPN 2791 FMI 3 (2352) | 2791 | 3 | EGR Valve Control Circuit – Voltage Above Normal or Shorted to High Source | |
| SPN 2791 FMI 4 (2351) | 2791 | 4 | EGR Valve Control Circuit – Voltage Below Normal or Shorted to Low Source | |
| SPN 27 FMI 2 (1228) | 27 | 27 | 2 | EGR Valve Position – Data Erratic, Intermittent, or Incorrect |
| SPN 27 FMI 3 (2271) | 27 | 27 | 3 | EGR Valve Position Circuit – Voltage Above Normal or Shorted to High Source |
| SPN 27 FMI 4 (2272) | 27 | 27 | 4 | EGR Valve Position Circuit – Voltage Below Normal or Shorted to Low Source |
| SPN 2978 FMI 2 (6637) | 2978 | 2 | Estimated Engine Parasitic Losses – Percent Torque – Data Erratic, Intermittent or Incorrect | |
| SPN 2978 FMI 9 (3838) | 2978 | 9 | Estimated Engine Parasitic Losses – Percent Torque – Abnormal Update Rate | |
| SPN 3031 FMI 11 (4737) | 3031 | 11 | Aftertreatment 1 Diesel Exhaust Fluid Tank Temperature – Root Cause Not Known | |
| SPN 3031 FMI 13 (4731) | 3031 | 13 | Aftertreatment Diesel Exhaust Fluid Tank Temperature Sensor – Out of Calibration | |
| SPN 3031 FMI 2 (1679) | 3031 | 2 | DEF Tank Temperature – Data Erratic, Intermittent, or Incorrect | |
| SPN 3031 FMI 3 (1678) | 3031 | 3 | Aftertreatment 1 DEF Tank Temperature Sensor – Voltage Above Normal or Shorted to High Source | |
| SPN 3031 FMI 4 (1677) | 3031 | 4 | DEF Tank Temperature Sensor – Voltage Below Normal or Shorted to Low Source | |
| SPN 3031 FMI 9 (4572) | 3031 | 9 | Aftertreatment Diesel Exhaust Fluid Tank Temperature – Abnormal Update Rate | |
| SPN 3058 FMI 0 (7232) | 3058 | Engine Exhaust Gas Recirculation (EGR) System – Data Valid But Above Normal Operating Range – Most Severe Level | ||
| SPN 3058 FMI 10 (3389) | 3058 | 10 | Engine Exhaust Gas Recirculation (EGR) System – Abnormal Rate of Change | |
| SPN 3058 FMI 16 (3383) | 411 | 3058 | 16 | Engine Exhaust Gas Recirculation (EGR) System – Data Valid but Above Normal Operating Range – Moderately Severe Level |
| SPN 3058 FMI 18 (3382) | 3058 | 18 | Engine Exhaust Gas Recirculation (EGR) System – Data Valid but Below Normal Operating Range – Moderately Severe Level | |
| SPN 3060 FMI 18 (3243) | 3060 | 18 | Engine Cooling System Monitor – Data Valid but Below Normal Operating Range – Moderately Severe Level | |
| SPN 3216 FMI 10 (3725) | 3216 | 10 | Aftertreatment Intake NOx Sensor – Abnormal Rate of Change | |
| SPN 3216 FMI 13 (3718) | 3216 | 13 | Aftertreatment Intake NOx – Out of Calibration | |
| SPN 3216 FMI 20 (3748) | 3216 | 20 | Aftertreatment 1 Intake NOx Sensor – Data Not Rational – Drifted High | |
| SPN 3216 FMI 20 (6458) | 3216 | 20 | Aftertreatment 1 Intake NOx Sensor – Data Not Rational – Drifted High | |
| SPN 3216 FMI 21 (6459) | 3216 | 21 | Aftertreatment 1 Intake NOx Sensor – Data Not Rational – Drifted Low | |
| SPN 3216 FMI 2 (6461) | 3216 | 2 | Aftertreatment 1 Intake NOx – Data Erratic, Intermittent, or Incorrect | |
| SPN 3216 FMI 4 (1885) | 102 | 3216 | 4 | Aftertreatment Intake NOx Sensor Circuit – Voltage Below Normal, or Shorted to Low Source |
| SPN 3216 FMI 9 (3232) | 3216 | 9 | Aftertreatment Intake NOx Sensor – Abnormal Update Rate | |
| SPN 3217 FMI 20 (4747) | 3217 | 20 | Aftertreatment Intake Oxygen Sensor – Data Not Rational – Drifted High | |
| SPN 3217 FMI 21 (4748) | 3217 | 21 | Aftertreatment Intake Oxygen Sensor – Data Not Rational – Drifted Low | |
| SPN 3218 FMI 2 (3682) | 3218 | 2 | Aftertreatment Intake NOx Sensor Power Supply – Data Erratic, Intermittent or Incorrect | |
| SPN 3222 FMI 5 (3446) | 3222 | 5 | Aftertreatment Intake NOx Sensor Circuit – Voltage Below Normal or Shorted to Low Source | |
| SPN 3226 FMI 10 (3545) | 2202 | 3226 | 10 | Aftertreatment Outlet NOx Sensor – Abnormal Rate of Change |
| SPN 3226 FMI 11 (5689) | 3226 | 11 | Aftertreatment 1 Outlet NOx Sensor – Root Cause Not Known | |
| SPN 3226 FMI 20 (3749) | 3226 | 20 | Aftertreatment Outlet NOx Sensor – Data Not Rational – Drifted High | |
| SPN 3226 FMI 21 (6463) | 3226 | 21 | Aftertreatment 1 Outlet NOx Sensor – Data Not Rational – Drifted Low | |
| SPN 3226 FMI 2 (1694) | 3226 | 2 | Aftertreatment 1 Outlet NOx Sensor – Data Erratic, Intermittent, or Incorrect | |
| SPN 3226 FMI 4 (1887) | 2202 | 3226 | 4 | Aftertreatment Outlet NOx Sensor Circuit – Voltage Below Normal or Shorted to Low Source |
| SPN 3226 FMI 9 (2771) | 3226 | 9 | Aftertreatment Outlet NOx Sensor – Abnormal Update Rate | |
| SPN 3227 FMI 10 (5656) | 3227 | 10 | Aftertreatment Outlet Oxygen – Abnormal Rate of Change | |
| SPN 3227 FMI 20 (4749) | 3227 | 20 | Aftertreatment Outlet Oxygen – Data Not Rational – Drifted High | |
| SPN 3227 FMI 21 (4751) | 3227 | 21 | Aftertreatment Outlet Oxygen – Data Not Rational – Drifted Low | |
| SPN 3228 FMI 2 (3681) | 411 | 3228 | 2 | Aftertreatment Outlet NOx Sensor Power Supply – Data Erratic, Intermittent or Incorrect |
| SPN 3242 FMI 0 (3311) | 3242 | Aftertreatment Diesel Particulate Filter Intake Temperature – Data Valid but Above Normal Operational Range – Most Severe Level | ||
| SPN 3242 FMI 15 (3254) | 3242 | 15 | Aftertreatment Diesel Particulate Filter Intake Temperature – Data Valid but Above Normal Operating Range – Least Severe Level | |
| SPN 3242 FMI 16 (3253) | 3242 | 16 | Aftertreatment Diesel Particulate Filter Intake Temperature – Data Valid but Above Normal Operating Range – Moderately Severe Level | |
| SPN 3242 FMI 2 (3318) | 3242 | 2 | Aftertreatment Diesel Particulate Filter Intake Temperature – Data Erratic, Intermittent, or Incorrect | |
| SPN 3242 FMI 3 (3317) | 3242 | 3 | Aftertreatment Diesel Particulate Filter Intake Temperature Sensor Circuit – Voltage Above Normal or Shorted to High Source | |
| SPN 3242 FMI 4 (3316) | 3242 | 4 | Aftertreatment Diesel Particulate Filter Intake Temperature Sensor Circuit – Voltage Below Normal or Shorted to Low Source | |
| SPN 3246 FMI 0 (3312) | 3246 | Aftertreatment Diesel Particulate Filter Outlet Temperature – Data Valid but Above Normal Operating Range – Most Severe Level | ||
| SPN 3246 FMI 15 (3256) | 3246 | 15 | Aftertreatment Diesel Particulate Filter Outlet Temperature – Data Valid but Above Normal Operating Range – Least Severe Level | |
| SPN 3246 FMI 16 (3255) | 3246 | 16 | Aftertreatment Diesel Particulate Filter Outlet Temperature – Data Valid but Above Normal Operating Range – Moderately Severe Level | |
| SPN 3246 FMI 20 (6879) | 3246 | 20 | Aftertreatment 1 Diesel Particulate Filter Outlet Temperature Sensor – Data Not Rational – Drifted High | |
| SPN 3246 FMI 21 (6785) | 3246 | 21 | Aftertreatment 1 Diesel Particulate Filter Outlet Temperature Sensor – Data Not Rational – Drifted Low | |
| SPN 3246 FMI 2 (3322) | 3246 | 2 | Aftertreatment Diesel Particulate Filter Outlet Temperature – Data Erratic, Intermittent, or Incorrect | |
| SPN 3246 FMI 3 (3319) | 3246 | 3 | Aftertreatment Diesel Particulate Filter Outlet Temperature Sensor Circuit – Voltage Above Normal or Shorted to High Source | |
| SPN 3246 FMI 4 (3321) | 3246 | 4 | Aftertreatment Diesel Particulate Filter Outlet Temperature Sensor Circuit – Voltage Below Normal or Shorted to Low Source | |
| SPN 3251 FMI 0 (1922) | 3251 | Aftertreatment Diesel Particulate Filter Differential Pressure – Data Valid but Above Normal Operating Range – Most Severe Level | ||
| SPN 3251 FMI 10 (5715) | 3251 | 10 | Aftertreatment 1 Diesel Particulate Filter Differential Pressure – Abnormal Rate of Change | |
| SPN 3251 FMI 15 (2639) | 3251 | 15 | Aftertreatment Diesel Particulate Filter Differential Pressure – Data Valid but Above Normal Operating Range – Least Severe Level | |
| SPN 3251 FMI 16 (1921) | 3251 | 16 | Aftertreatment Diesel Particulate Filter Differential Pressure – Data Valid but Above Normal Operating Range – Moderately Severe Level | |
| SPN 3251 FMI 2 (1883) | 3251 | 2 | Aftertreatment Diesel Particulate Filter Differential Pressure Sensor – Data Erratic, Intermittent, or Incorrect | |
| SPN 3251 FMI 3 (1879) | 3251 | 3 | Aftertreatment Diesel Particulate Filter Differential Pressure Sensor Circuit – Voltage Above Normal or Shorted to High Source | |
| SPN 3251 FMI 4 (1881) | 3251 | 4 | Aftertreatment Diesel Particulate Filter Differential Pressure Sensor Circuit – Voltage Below Normal or Shorted to Low Source | |
| SPN 3361 FMI 3 (3558) | 3361 | 3 | Aftertreatment Diesel Exhaust Fluid Dosing Unit – Voltage Above Normal or Shorted to High Source | |
| SPN 3361 FMI 4 (3559) | 3361 | 4 | Aftertreatment Diesel Exhaust Fluid Dosing Unit – Voltage Below Normal or Shorted to Low Source | |
| SPN 3362 FMI 31 (1682) | 3362 | 31 | Aftertreatment 1 Diesel Exhaust Fluid Dosing Unit Input Lines – Condition Exists | |
| SPN 3363 FMI 16 (1713) | 3363 | 16 | Aftertreatment Diesel Exhaust Fluid Tank Heater – Data Valid but Above Normal Operating Range – Moderately Severe Level | |
| SPN 3363 FMI 18 (1712) | 3363 | 18 | Aftertreatment Diesel Exhaust Fluid Tank Heater – Data Valid but Below Normal Operating Range – Moderately Severe Level | |
| SPN 3363 FMI 3 (1683) | 3363 | 3 | Aftertreatment 1 Diesel Exhaust Fluid Tank Heater – Voltage Above Normal or Shorted to High Source | |
| SPN 3363 FMI 4 (1684) | 3363 | 4 | Aftertreatment 1 Diesel Exhaust Fluid Tank Heater – Voltage Below Normal or Shorted to Low Source | |
| SPN 3363 FMI 7 (3242) | 3363 | 7 | Aftertreatment Diesel Exhaust Fluid Tank Heater – Mechanical System Not Responding or Out of Adjustment | |
| SPN 3364 FMI 10 (4277) | 3364 | 10 | Aftertreatment Diesel Exhaust Fluid Quality – Abnormal Rate of Change | |
| SPN 3364 FMI 11 (1715) | 3364 | 11 | Aftertreatment Diesel Exhaust Fluid Quality – Root Cause Not Known | |
| SPN 3364 FMI 13 (1714) | 3364 | 13 | DEF Quality – Out of Calibration | |
| SPN 3364 FMI 1 (3866) | 3364 | 1 | Aftertreatment Diesel Exhaust Fluid Quality – Data Valid But Below Normal Operating Range – Most Severe Level | |
| SPN 3364 FMI 15 (4842) | 3364 | 15 | Aftertreatment Diesel Exhaust Fluid Quality – Data Valid but Above Normal Operating Range – Least Severe Level | |
| SPN 3364 FMI 18 (3867) | 3364 | 18 | Aftertreatment Diesel Exhaust Fluid Quality – Data Valid but Below Normal Operating Range – Moderately Severe Level | |
| SPN 3364 FMI 2 (3878) | 3364 | 2 | Aftertreatment Diesel Exhaust Fluid Quality – Data Erratic, Intermittent, or Incorrect | |
| SPN 3364 FMI 3 (1686) | 3364 | 3 | Aftertreatment Diesel Exhaust Fluid Quality Sensor Circuit – Voltage Above Normal or Shorted to High Source | |
| SPN 3364 FMI 4 (1685) | 3364 | 4 | Aftertreatment Diesel Exhaust Fluid Quality Sensor Circuit – Voltage Below Normal or Shorted to Low Source | |
| SPN 3364 FMI 9 (3868) | 3364 | 9 | Aftertreatment Diesel Exhaust Fluid Quality – Abnormal Update Rate | |
| SPN 3464 FMI 3 (5879) | 3464 | 3 | Electronic Throttle Control Actuator Driver Circuit – Voltage Above Normal or Shorted to High Source | |
| SPN 3464 FMI 4 (5881) | 3464 | 4 | Electronic Throttle Control Actuator Driver Circuit – Voltage Below Normal or Shorted to Low Source | |
| SPN 3464 FMI 7 (5882) | 3464 | 7 | Electronic Throttle Control Actuator – Mechanical System Not Responding or Out of Adjustment | |
| SPN 3509 FMI 3 (386) | 3509 | 3 | Sensor Supply 1 Circuit – Voltage Above Normal or Shorted to High Source | |
| SPN 3509 FMI 4 (352) | 3509 | 4 | Sensor Supply 1 Circuit – Voltage Below Normal or Shorted to Low Source | |
| SPN 3510 FMI 3 (227) | 3510 | 3 | Sensor Supply 2 Circuit – Voltage Above Normal or Shorted to High Source | |
| SPN 3510 FMI 4 (187) | 3510 | 4 | Sensor Supply 2 Circuit – Voltage Below Normal or Shorted to Low Source | |
| SPN 3511 FMI 3 (239) | 3511 | 3 | Sensor Supply 3 Circuit – Voltage Above Normal or Shorted to High Source | |
| SPN 3511 FMI 4 (238) | 3511 | 4 | Sensor Supply 3 Circuit – Voltage Below Normal or Shorted to Low Source | |
| SPN 3512 FMI 3 (2185) | 3512 | 3 | Sensor Supply 4 Circuit – Voltage Above Normal or Shorted to High Source | |
| SPN 3512 FMI 4 (2186) | 3512 | 4 | Sensor Supply 4 Circuit – Voltage Below Normal or Shorted to Low Source | |
| SPN 3513 FMI 3 (1695) | 3513 | 3 | Sensor Supply 5 Circuit – Voltage Above Normal or Shorted to High Source | |
| SPN 3513 FMI 4 (1696) | 3513 | 4 | Sensor Supply 5 Circuit – Voltage Below Normal or Shorted to Low Source | |
| SPN 3514 FMI 3 (515) | 3514 | 3 | Sensor Supply 6 Circuit – Voltage Above Normal or Shorted to High Source | |
| SPN 3514 FMI 4 (516) | 3514 | 4 | Sensor Supply 6 Circuit – Voltage Below Normal or Shorted to Low Source | |
| SPN 3515 FMI 10 (4243) | 3515 | 10 | Aftertreatment 1 Diesel Exhaust Fluid Temperature 2 – Abnormal Rate of Change | |
| SPN 3515 FMI 11 (4745) | 3515 | 11 | Aftertreatment 1 Diesel Exhaust Fluid Temperature 2 – Root Cause Not Known | |
| SPN 3515 FMI 3 (4233) | 3515 | 3 | Aftertreatment Diesel Exhaust Fluid Temperature Sensor – Voltage Above Normal or Shorted to High Source | |
| SPN 3515 FMI 4 (4234) | 3515 | 4 | Aftertreatment Diesel Exhaust Fluid Temperature Sensor – Voltage Below Normal or Shorted to Low Source | |
| SPN 3521 FMI 11 (4768) | 3521 | 11 | Aftertreatment 1 Diesel Exhaust Fluid Property – Root Cause Not Known | |
| SPN 3521 FMI 16 (6765) | 3521 | 16 | Aftertreatment 1 Diesel Exhaust Fluid Property – Data Valid But Above Normal Operating Range – Moderately Severe Level | |
| SPN 3521 FMI 18 (6766) | 3521 | 18 | Aftertreatment 1 Diesel Exhaust Fluid Property – Data Valid But Below Normal Operating Range – Moderately Severe Level | |
| SPN 3521 FMI 31 (4235) | 3521 | 31 | Aftertreatment 1 Diesel Exhaust Fluid Property – Condition Exists | |
| SPN 3521 FMI 31 (6767) | 3521 | 31 | Aftertreatment 1 Diesel Exhaust Fluid Property – Condition Exists | |
| SPN 3555 FMI 17 (1943) | 3555 | 17 | Ambient Air Density – Data Valid But Below Normal Operating Range – Least Severe Level | |
| SPN 3597 FMI 12 (351) | 3597 | 12 | Injector Power Supply – Bad Intelligent Device or Component | |
| SPN 3597 FMI 18 (1938) | 3597 | 18 | ECU Power Output Supply Voltage 1 – Data Valid but Below Normal Operational Range – Moderately Severe Level | |
| SPN 3597 FMI 2 (1117) | 3597 | 2 | Power Supply Lost With Ignition On – Data Erratic, Intermittent, or Incorrect | |
| SPN 3597 FMI 4 (1941) | 3597 | 4 | ECU Power Output Supply Voltage 1 – Voltage Below Normal or Shorted to Low Source | |
| SPN 3610 FMI 10 (5716) | 3610 | 10 | Aftertreatment 1 Diesel Particulate Filter Outlet Pressure – Abnormal Rate of Change | |
| SPN 3610 FMI 20 (6786) | 3610 | 20 | Aftertreatment 1 Diesel Particulate Filter Outlet Pressure Sensor – Data Not Rational – Drifted High | |
| SPN 3610 FMI 2 (3135) | 3610 | 2 | Aftertreatment Diesel Particulate Filter Outlet Pressure – Data Erratic, Intermittent, or Incorrect | |
| SPN 3610 FMI 3 (3133) | 3610 | 3 | Aftertreatment Diesel Particulate Filter Outlet Pressure Sensor Circuit – Voltage Above Normal, or Shorted to High Source | |
| SPN 3610 FMI 4 (3134) | 3610 | 4 | Aftertreatment Diesel Particulate Filter Outlet Pressure Sensor Circuit – Voltage Below Normal, or Shorted to Low Source | |
| SPN 3695 FMI 2 (4213) | 3695 | 2 | Aftertreatment Regeneration Inhibit Switch – Data Erratic, Intermittent, or Incorrect | |
| SPN 3703 FMI 31 (2777) | 3703 | 31 | Particulate Trap Active Regeneration Inhibited Due to Inhibit Switch – Condition Exists | |
| SPN 3703 FMI 31 (6416) | 3703 | 31 | Aftertreatment Regeneration Inhibited Due to Inhibit Switch – Condition Exists | |
| SPN 3720 FMI 15 (5383) | 3720 | 15 | Aftertreatment 1 Diesel Particulate Filter Ash Load Percent – Data Valid But Above Normal Operating Range – Least Severe Level | |
| SPN 3750 FMI 31 (3396) | 3750 | 31 | Diesel Particulate Filter 1 Conditions Not Met for Active Regeneration – Condition Exists | |
| SPN 38 FMI 13 (6343) | 38 | 13 | Fuel Level 2 – Out of Calibration | |
| SPN 38 FMI 9 (6342) | 38 | 9 | Fuel Level 2 – Abnormal Update Rate | |
| SPN 3936 FMI 14 (4584) | 3936 | 14 | Aftertreatment Diesel Particulate Filter System – Special Instructions | |
| SPN 3936 FMI 15 (1981) | 3936 | 15 | Aftertreatment 1 Diesel Particulate Filter System – Data Valid But Above Normal Operating Range – Least Severe | |
| SPN 3936 FMI 2 (2692) | 3936 | 2 | Aftertreatment 1 Diesel Particulate Filter System – Data Erratic, Intermittent, or Incorrect | |
| SPN 4096 FMI 31 (3547) | 4096 | 31 | Aftertreatment Diesel Exhaust Fluid Tank Empty – Condition Exists | |
| 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 Temperature – Data Valid but Above Normal Operational 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 2 (1867) | 412 | 412 | 2 | Exhaust Gas Recirculation Temperature – Data Erratic, Intermittent, or Incorrect |
| 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 4331 FMI 16 (6486) | 4331 | 16 | Aftertreatment 1 Diesel Exhaust Fluid Actual Dosing Quantity – Data Valid But Above Normal Operating Range – Moderately Severe Level | |
| SPN 4331 FMI 18 (4658) | 4331 | 18 | Aftertreatment SCR Actual Dosing Reagent Quantity – Data Valid but Below Normal Operating Range – Moderately Severe Level | |
| SPN 4334 FMI 15 (5936) | 4334 | 15 | Aftertreatment 1 Diesel Exhaust Fluid Pressure – Data Valid But Above Normal Operating Range – Least Severe Level | |
| SPN 4334 FMI 16 (3575) | 4334 | 16 | Aftertreatment Diesel Exhaust Fluid Pressure – Data Valid but Above Normal Operating Range – Moderately Severe Level | |
| SPN 4334 FMI 18 (3574) | 4334 | 18 | Aftertreatment Diesel Exhaust Fluid Pressure – Data Valid but Below Normal Operating Range – Moderately Severe Level | |
| SPN 4334 FMI 2 (3596) | 4334 | 2 | Aftertreatment Diesel Exhaust Fluid Pressure – Data Erratic, Intermittent, or Incorrect | |
| SPN 4334 FMI 3 (3571) | 4334 | 3 | Aftertreatment Diesel Exhaust Fluid Pressure Sensor Circuit – Voltage Above Normal or Shorted to High Source | |
| SPN 4334 FMI 4 (3572) | 4334 | 4 | Aftertreatment Diesel Exhaust Fluid Pressure Sensor Circuit – Voltage Below Normal or Shorted to Low Source | |
| SPN 4334 FMI 7 (5935) | 4334 | 7 | Aftertreatment 1 Diesel Exhaust Fluid Pressure – Mechanical System Not Responding or Out of Adjustment | |
| SPN 4339 FMI 7 (5868) | 4339 | 7 | Aftertreatment 1 SCR Feedback Control Status – Mechanical System Not Responding or Out of Adjustment | |
| SPN 4340 FMI 3 (3237) | 4340 | 3 | Aftertreatment Diesel Exhaust Fluid Line Heater 1 Circuit – Voltage Above Normal or Shorted to High Source | |
| SPN 4340 FMI 4 (3238) | 4340 | 4 | Aftertreatment Diesel Exhaust Fluid Line Heater 1 Circuit – Voltage Below Normal or Shorted to Low Source | |
| SPN 4342 FMI 3 (3239) | 4342 | 3 | Aftertreatment Diesel Exhaust Fluid Line Heater 2 Circuit – Voltage Above Normal or Shorted to High Source | |
| SPN 4342 FMI 4 (3241) | 4342 | 4 | Aftertreatment Diesel Exhaust Fluid Line Heater 2 Circuit – Voltage Below Normal or Shorted to Low Source | |
| SPN 4344 FMI 3 (3422) | 4344 | 3 | Aftertreatment Diesel Exhaust Fluid Line Heater 3 Circuit – Voltage Above Normal or Shorted to High Source | |
| SPN 4344 FMI 4 (3423) | 4344 | 4 | Aftertreatment Diesel Exhaust Fluid Line Heater 3 Circuit – Voltage Below Normal or Shorted to Low Source | |
| SPN 4363 FMI 0 (3165) | 4363 | Aftertreatment SCR Outlet Temperature – Data Valid but Above Normal Operating Range – Most Severe Level | ||
| SPN 4363 FMI 16 (3235) | 4363 | 16 | Aftertreatment SCR Outlet Temperature – Data Valid but Above Normal Operating Range – Moderately Severe Level | |
| SPN 4363 FMI 20 (6876) | 4363 | 20 | Aftertreatment 1 SCR Outlet Temperature Sensor – Data Not Rational – Drifted High | |
| SPN 4363 FMI 2 (3148) | 4363 | 2 | Aftertreatment SCR Outlet Temperature Sensor – Data Erratic, Intermittent, or Incorrect | |
| SPN 4363 FMI 3 (3146) | 4363 | 3 | Aftertreatment SCR Outlet Temperature Sensor Circuit – Voltage Above Normal or Shorted to High Source | |
| SPN 4363 FMI 4 (3147) | 4363 | 4 | Aftertreatment SCR Outlet Temperature Sensor Circuit – Voltage Below Normal or Shorted to Low Source | |
| SPN 4364 FMI 31 (5655) | 4364 | 31 | Aftertreatment SCR Conversion Efficiency – Condition Exists | |
| SPN 4375 FMI 2 (6485) | 4375 | 2 | Aftertreatment 1 Diesel Exhaust Fluid Pump Drive Percentage – Data Erratic, Intermittent, or Incorrect | |
| SPN 4375 FMI 3 (5864) | 4375 | 3 | Aftertreatment 1 Diesel Exhaust Fluid Pump Command Circuit – Voltage Above Normal or Shorted to High Source | |
| SPN 4375 FMI 4 (5865) | 4375 | 4 | Aftertreatment 1 Diesel Exhaust Fluid Pump Command Circuit – Voltage Below Normal or Shorted to Low Source | |
| SPN 4752 FMI 18 (3342) | 91 | 4752 | 18 | Engine Exhaust Gas Recirculation Cooler Efficiency – Data Valid but Below Normal Operating Range – Moderately Severe Level |
| SPN 4765 FMI 16 (3251) | 4765 | 16 | Aftertreatment Diesel Oxidation Catalyst Intake Temperature – Data Valid but Above Normal Operating Range – Moderately Severe Level | |
| SPN 4765 FMI 2 (3315) | 4765 | 2 | Aftertreatment Diesel Oxidation Catalyst Intake Temperature – Data Erratic, Intermittent, or Incorrect | |
| SPN 4765 FMI 3 (3314) | 4765 | 3 | Aftertreatment Diesel Oxidation Catalyst Intake Temperature Sensor Circuit – Voltage Above Normal or Shorted to High Source | |
| SPN 4765 FMI 4 (3313) | 4765 | 4 | Aftertreatment Diesel Oxidation Catalyst Intake Temperature Sensor Circuit – Voltage Below Normal, or Shorted to Low Source | |
| SPN 4794 FMI 31 (3151) | 4794 | 31 | Aftertreatment SCR Catalyst System Missing – Condition Exists | |
| SPN 4795 FMI 31 (1993) | 4795 | 31 | Aftertreatment Diesel Particulate Filter Missing – Condition Exists | |
| SPN 4796 FMI 31 (1664) | 4796 | 31 | Aftertreatment 1 Diesel Oxidation Catalyst Missing – Condition Exists | |
| SPN 5024 FMI 10 (3649) | 5024 | 10 | Aftertreatment Intake NOx Sensor Heater – Abnormal Rate of Change | |
| SPN 5031 FMI 10 (3583) | 5031 | 10 | Aftertreatment Outlet NOx Sensor Heater – Abnormal Rate of Change | |
| SPN 51 FMI 2 (3542) | 51 | 2 | Engine Intake Throttle Actuator Position Sensor – Data Erratic, Intermittent, or Incorrect | |
| SPN 51 FMI 3 (3539) | 51 | 3 | Engine Intake Throttle Actuator Position Sensor Circuit – Voltage Above Normal or Shorted to High Source | |
| SPN 51 FMI 4 (3541) | 51 | 4 | Engine Intake Throttle Actuator Position Sensor Circuit – Voltage Below Normal or Shorted to Low Source | |
| SPN 520325 FMI 31 (2718) | 520325 | 31 | Brake Switch and Accelerator Pedal Position Incompatible – Condition Exists | |
| SPN 520750 FMI 31 (4957) | 520750 | 31 | Engine Variable Geometry Turbo (VGT) Software – Condition Exists | |
| SPN 520953 FMI 3 (5866) | 520953 | 3 | Aftertreatment Diesel Exhaust Fluid Dosing Unit Relay Feedback – Voltage Above Normal or Shorted to High Source | |
| SPN 520953 FMI 4 (5867) | 520953 | 4 | Aftertreatment Diesel Exhaust Fluid Dosing Unit Relay Feedback – Voltage Below Normal or Shorted to Low Source | |
| SPN 521032 FMI 14 (6771) | 521032 | 14 | Aftertreatment System Assembly – Special Instructions | |
| SPN 521 FMI 2 (4526) | 521 | 2 | Brake Pedal Position – Data Erratic, Intermittent or Incorrect | |
| SPN 5246 FMI 0 (3712) | 5246 | Aftertreatment SCR Operator Inducement – Data Valid but Above Normal Operational Range – Most Severe Level | ||
| SPN 5246 FMI 16 (6254) | 5246 | 16 | Aftertreatment SCR Operator Inducement Severity – Data Valid but Above Normal Operating Range – Moderately Severe Level | |
| SPN 5285 FMI 18 (3343) | 5285 | 18 | Engine Charge-Air Cooler Efficiency – Data Valid but Below Normal Operating Range – Moderately Severe Level | |
| SPN 5298 FMI 17 (2638) | 5298 | 17 | Aftertreatment Diesel Oxidation Catalyst Conversion Efficiency – Data Valid but Below Normal Operating Range – Least Severe Level | |
| SPN 5298 FMI 18 (1691) | 5298 | 18 | Aftertreatment 1 Diesel Oxidation Catalyst Conversion Efficiency – Data Valid but Below Normal Operating Range – Moderately Severe Level | |
| SPN 5298 FMI 31 (4282) | 5298 | 31 | Aftertreatment Diesel Oxidation Catalyst Conversion Efficiency – Condition Exists | |
| SPN 5319 FMI 31 (3376) | 5319 | 31 | Aftertreatment Diesel Particulate Filter Incomplete Regeneration – Condition Exists | |
| SPN 5321 FMI 31 (4612) | 5321 | 31 | Engine Intake Manifold Pressure System Monitor – Condition Exists | |
| SPN 5357 FMI 31 (4713) | 5357 | 31 | Engine Fuel Injection Quantity Error for Multiple Cylinders – Condition Exists | |
| SPN 5394 FMI 3 (3565) | 5394 | 3 | Aftertreatment 1 Diesel Exhaust Fluid Dosing Valve 1 Circuit – Voltage Above Normal or Shorted to High Source | |
| SPN 5394 FMI 5 (3567) | 5394 | 5 | Aftertreatment Diesel Exhaust Fluid Dosing Valve – Current Below Normal or Open Circuit | |
| SPN 5394 FMI 7 (3568) | 5394 | 7 | Aftertreatment Diesel Exhaust Fluid (DEF) Dosing Valve – Mechanical System Not Responding or Out of Adjustment | |
| SPN 5395 FMI 18 (3338) | 5395 | 18 | Engine Idle Fuel Quantity – Data Valid but Below Normal Operating Range – Moderately Severe Level | |
| SPN 5397 FMI 31 (3375) | 5397 | 31 | Aftertreatment Diesel Particulate Filter Regeneration Too Frequent – Condition Exists | |
| SPN 5400 FMI 31 (6244) | 5400 | 31 | SCR Thermal Management – Condition Exists | |
| SPN 5491 FMI 3 (3562) | 5491 | 3 | Aftertreatment Diesel Exhaust Fluid Line Heater Relay – Voltage Above Normal or Shorted to High Source | |
| SPN 5491 FMI 4 (3563) | 5491 | 4 | Aftertreatment Diesel Exhaust Fluid Line Heater Relay – Voltage Below Normal or Shorted to Low Source | |
| SPN 5569 FMI 16 (6721) | 5569 | 16 | Aftertreatment 1 Diesel Particulate Filter 1 Soot Sensor ECU Internal Temperature – Data Valid But Above Normal Operating Range – Moderately Severe Level | |
| SPN 5569 FMI 16 (6735) | 5569 | 16 | Aftertreatment 1 Diesel Particulate Filter 1 Soot Sensor ECU Internal Temperature – Data Valid But Above Norma | |
| SPN 5569 FMI 2 (6646) | 5569 | 2 | Aftertreatment 1 Diesel Particulate Filter 1 Soot Sensor ECU Internal Temperature – Data Erratic, Intermittent, or Incorrect | |
| SPN 5569 FMI 3 (6643) | 5569 | 3 | Aftertreatment 1 Diesel Particulate Filter 1 Soot Sensor ECU Internal Temperature 1 Circuit – Voltage Above Normal or Shorted to High Source | |
| SPN 5569 FMI 3 (6645) | 5569 | 3 | Aftertreatment 1 Diesel Particulate Filter 1 Soot Sensor ECU Internal Temperature 2 Circuit – Voltage Above Normal or Shorted to High Source | |
| SPN 5569 FMI 4 (6642) | 5569 | 4 | Aftertreatment 1 Diesel Particulate Filter 1 Soot Sensor ECU Internal Temperature 1 Circuit- Voltage Below Normal or Shorted to Low Source | |
| SPN 5569 FMI 4 (6644) | 5569 | 4 | Aftertreatment 1 Diesel Particulate Filter 1 Soot Sensor ECU Internal Temperature 2 Circuit – Voltage Below Normal or Shorted to Low Source | |
| SPN 5571 FMI 0 (3741) | 5571 | High Pressure Common Rail Fuel Pressure Relief Valve – Data Valid but Above Normal Operational Range – Most Severe Level | ||
| SPN 5571 FMI 7 (3727) | 5571 | 7 | High-Pressure Common Rail Fuel Pressure Relief Valve – Mechanical System Not Responding or Out of Adjustment | |
| SPN 5585 FMI 18 (4691) | 5585 | 18 | Engine Injector Metering Rail 1 Cranking Pressure – Data Valid but Below Normal Operating Range – Moderately Severe Level | |
| SPN 558 FMI 19 (3527) | 91 | 558 | 19 | Accelerator Pedal or Lever Idle Validation Switch – Received Network Data in Error |
| SPN 558 FMI 9 (3528) | 558 | 9 | Accelerator Pedal or Lever Idle Validation Switch – Abnormal Update Rate | |
| SPN 5603 FMI 19 (7427) | 5603 | 19 | Cruise Control Disable Command – Received Network Data in Error | |
| SPN 5603 FMI 31 (3845) | 5603 | 31 | Cruise Control Disable Command – Condition Exists | |
| SPN 5603 FMI 9 (3843) | 5603 | 9 | Cruise Control Disable Command – Abnormal Update Rate | |
| SPN 5605 FMI 31 (3844) | 5605 | 31 | Cruise Control Pause Command – Condition Exists | |
| SPN 563 FMI 31 (4215) | 563 | 31 | Anti-Lock Braking (ABS) Active – Condition Exists | |
| SPN 563 FMI 9 (3488) | 563 | 9 | Anti-Lock Braking (ABS) Controller – Abnormal Update Rate | |
| SPN 5709 FMI 11 (6246) | 5709 | 11 | Aftertreatment 1 Outlet NOx Sensor Self-Diagnosis Trigger – Root Cause Not Known | |
| SPN 5717 FMI 10 (5838) | 5717 | 10 | Aftertreatment 1 Outlet NOx Sensor Self-Diagnosis – Abnormal Rate of Change | |
| SPN 5742 FMI 11 (4259) | 5742 | 11 | Aftertreatment Diesel Particulate Filter Temperature Sensor Module – Root Cause Not Known | |
| SPN 5742 FMI 12 (4158) | 5742 | 12 | Aftertreatment Diesel Particulate Filter Temperature Sensor Module – Bad Intelligent Device or Component | |
| SPN 5742 FMI 16 (4163) | 5742 | 16 | Aftertreatment Diesel Particulate Filter Temperature Sensor Module – Data Valid but Above Normal Operating Range – Moderately Severe Level | |
| SPN 5742 FMI 3 (4161) | 5742 | 3 | Aftertreatment Diesel Particulate Filter Temperature Sensor Module – Voltage Above Normal, or Shorted to High Source | |
| SPN 5742 FMI 4 (4162) | 5742 | 4 | Aftertreatment Diesel Particulate Filter Temperature Sensor Module – Voltage Below Normal, or Shorted to Low Source | |
| SPN 5742 FMI 9 (4151) | 5742 | 9 | Aftertreatment Diesel Particulate Filter Temperature Sensor Module – Abnormal Update Rate | |
| SPN 5743 FMI 11 (4261) | 5743 | 11 | Aftertreatment Selective Catalytic Reduction Temperature Sensor Module – Root Cause Not Known | |
| SPN 5743 FMI 12 (4159) | 5743 | 12 | Aftertreatment Selective Catalytic Reduction Temperature Sensor Module – Bad Intelligent Device or Component | |
| SPN 5743 FMI 16 (4166) | 5743 | 16 | Aftertreatment Selective Catalytic Reduction Temperature Sensor Module – Data Valid but Above Normal Operating Range – Moderately Severe Level | |
| SPN 5743 FMI 3 (4164) | 5743 | 3 | Aftertreatment Selective Catalytic Reduction Temperature Sensor Module – Voltage Above Normal or Shorted to High Source | |
| SPN 5743 FMI 4 (4165) | 5743 | 4 | Aftertreatment Selective Catalytic Reduction Temperature Sensor Module – Voltage Below Normal or Shorted to Low Source | |
| SPN 5743 FMI 9 (4152) | 5743 | 9 | Aftertreatment Selective Catalytic Reduction Temperature Sensor Module – Abnormal Update Rate | |
| SPN 5793 FMI 9 (4284) | 5793 | 9 | Desired Engine Fueling State – Abnormal Update Rate | |
| SPN 581 FMI 9 (6724) | 581 | 9 | Transmission Gear Ratio Module – Abnormal Update Rate | |
| SPN 5835 FMI 21 (5837) | 5835 | 21 | Aftertreatment 1 Particulate Sensor – Data Not Rational – Drifted Low | |
| SPN 5835 FMI 3 (4143) | 5835 | 3 | Aftertreatment 1 Particulate Sensor Circuit – Voltage Above Normal or Shorted to High Source | |
| SPN 5835 FMI 4 (4144) | 5835 | 4 | Aftertreatment 1 Particulate Sensor Circuit – Voltage Below Normal or Shorted to Low Source | |
| SPN 5835 FMI 9 (6688) | 5835 | 9 | Aftertreatment 1 Particulate Sensor – Abnormal Update Rate | |
| SPN 5842 FMI 14 (6656) | 5842 | 14 | SCR Monitoring System Malfunction – Special Instructions | |
| SPN 5862 FMI 0 (4524) | 5862 | Aftertreatment SCR Intermediate Gas Temperature – Data Valid but Above Normal Operating Range – Most Severe Level | ||
| SPN 5862 FMI 14 (6266) | 5862 | 14 | Aftertreatment SCR Intermediate Gas Temperature Sensor – Data Erratic, Intermittent or Incorrect | |
| SPN 5862 FMI 16 (4525) | 5862 | 16 | Aftertreatment 1 SCR Intermediate Gas Temperature – Data Valid but Above Normal Operating Range – Moderately Severe Level | |
| SPN 5862 FMI 2 (4521) | 5862 | 2 | Aftertreatment SCR Intermediate Gas Temperature Sensor – Data Erratic, Intermittent, or Incorrect | |
| SPN 5862 FMI 3 (4518) | 5862 | 3 | Aftertreatment SCR Intermediate Gas Temperature Sensor Circuit – Voltage Above Normal or Shorted to High Source | |
| SPN 5862 FMI 4 (4519) | 5862 | 4 | Aftertreatment SCR Intermediate Gas Temperature Sensor Circuit – Voltage Below Normal or Shorted to Low Source | |
| SPN 629 FMI 12 (111) | 629 | 12 | Engine Control Module Critical Internal Failure – Bad Intelligent Device or Component | |
| SPN 629 FMI 12 (343) | 629 | 12 | Engine Control Module Warning Internal Hardware Failure – Bad Intelligent Device or Component | |
| SPN 6303 FMI 3 (4865) | 6303 | 3 | Engine Coolant Level Sensor No. 2 Circuit – Voltage Above Normal or Shorted to High Source | |
| SPN 6303 FMI 4 (4866) | 6303 | 4 | Engine Coolant Level Sensor No. 2 Circuit – Voltage Below Normal or Shorted to Low Source | |
| SPN 630 FMI 12 (346) | 630 | 12 | Engine Control Module Calibration Memory Software – Bad Intelligent Device or Component | |
| SPN 630 FMI 12 (3697) | 630 | 12 | Engine Control Module Calibration Memory – Bad Intelligent Device or Component | |
| SPN 633 FMI 31 (2311) | 633 | 31 | Electronic Fuel Injection Control Valve Circuit – Condition Exists | |
| SPN 639 FMI 13 (286) | 639 | 13 | SAE J1939 Multiplexing Configuration Error – Out of Calibration | |
| SPN 639 FMI 9 (285) | 639 | 9 | SAE J1939 Multiplexing PGN Timeout Error – Abnormal Update Rate | |
| SPN 639 FMI 9 (427) | 639 | 9 | SAE J1939 Data Link – Abnormal Update Rate | |
| SPN 641 FMI 11 (2198) | 641 | 11 | VGT Actuator Driver Circuit – Root Cause Not Known | |
| SPN 641 FMI 12 (1897) | 641 | 12 | VGT Actuator Controller – Bad Intelligent Device or Component | |
| SPN 641 FMI 13 (2449) | 641 | 13 | VGT Actuator Controller – Out of Calibration | |
| SPN 641 FMI 14 (6432) | 641 | 14 | VGT Actuator Controller – Out of Calibration | |
| SPN 641 FMI 15 (1976) | 641 | 15 | VGT Actuator Driver Temperature – Data Valid but Above Normal Operating Range – Least Severe Level | |
| SPN 641 FMI 7 (2387) | 641 | 7 | VGT Actuator Driver Circuit (Motor) – Mechanical System Not Responding or Out of Adjustment | |
| SPN 641 FMI 9 (1894) | 641 | 9 | VGT Actuator Driver Circuit – Abnormal Update Rate | |
| SPN 647 FMI 3 (6263) | 647 | 3 | Fan Control Circuit – Voltage Above Normal or Shorted to High Source | |
| SPN 647 FMI 4 (6264) | 647 | 4 | Fan Control Circuit – Voltage Below Normal or Shorted to Low Source | |
| SPN 651 FMI 5 (322) | 651 | 5 | Injector Solenoid Driver Cylinder 1 Circuit – Current Below Normal or Open Circuit | |
| SPN 651 FMI 7 (1139) | 651 | 7 | Injector Solenoid Driver Cylinder 1 – Mechanical System Not Responding or Out of Adjustment | |
| SPN 652 FMI 5 (331) | 652 | 5 | Injector Solenoid Driver Cylinder 2 Circuit – Current Below Normal or Open Circuit | |
| SPN 652 FMI 7 (1141) | 652 | 7 | Injector Solenoid Driver Cylinder 2 – Mechanical System Not Responding or Out of Adjustment | |
| SPN 653 FMI 5 (324) | 653 | 5 | Injector Solenoid Driver Cylinder 3 Circuit – Current Below Normal or Open Circuit | |
| SPN 653 FMI 7 (1142) | 653 | 7 | Injector Solenoid Driver Cylinder 3 – Mechanical System Not Responding or Out of Adjustment | |
| SPN 654 FMI 5 (332) | 654 | 5 | Injector Solenoid Driver Cylinder 4 Circuit – Current Below Normal or Open Circuit | |
| SPN 654 FMI 7 (1143) | 654 | 7 | Injector Solenoid Driver Cylinder 4 – Mechanical System Not Responding or Out of Adjustment | |
| SPN 655 FMI 5 (323) | 655 | 5 | Injector Solenoid Driver Cylinder 5 Circuit – Current Below Normal or Open Circuit | |
| SPN 655 FMI 7 (1144) | 655 | 7 | Injector Solenoid Driver Cylinder 5 – Mechanical System Not Responding or Out of Adjustment | |
| SPN 656 FMI 5 (325) | 656 | 5 | Injector Solenoid Driver Cylinder 6 Circuit – Current Below Normal or Open Circuit | |
| SPN 656 FMI 7 (1145) | 656 | 7 | Injector Solenoid Driver Cylinder 6 – Mechanical System Not Responding or Out of Adjustment | |
| SPN 6713 FMI 13 (4956) | 6713 | 13 | Engine Variable Geometry Turbo (VGT) Software – Out of Calibration | |
| SPN 6713 FMI 9 (5177) | 6713 | 9 | Variable Geometry Turbocharger Actuator Software – Abnormal Update Rate | |
| SPN 6773 FMI 16 (4449) | 6773 | 16 | Aftertreatment 1 Particulate Sensor Regeneration Status – Data Valid but Above Normal Operating Range – Moderately Severe Level | |
| SPN 6773 FMI 7 (5584) | 6773 | 7 | Aftertreatment 1 Particulate Sensor Regeneration Status – Mechanical System Not Responding or Out of Adjustment | |
| SPN 6777 FMI 10 (5583) | 6777 | 10 | Aftertreatment 1 Particulate Sensor Detection Status – Abnormal Rate of Change | |
| SPN 6778 FMI 16 (5579) | 6778 | 16 | Aftertreatment 1 Particulate Sensor Power Supply – Data Valid but Above Normal Operating Range – Moderately Severe Level | |
| SPN 6778 FMI 3 (5577) | 6778 | 3 | Aftertreatment 1 Particulate Sensor Power Supply – Voltage Above Normal or Shorted to High Source | |
| SPN 6778 FMI 4 (5578) | 6778 | 4 | Aftertreatment 1 Particulate Sensor Power Supply – Voltage Below Normal or Shorted to Low Source | |
| SPN 677 FMI 3 (6261) | 677 | 3 | Starter Relay Driver Circuit – Voltage Above Normal or Shorted to High Source | |
| SPN 677 FMI 4 (6262) | 677 | 4 | Starter Relay Driver Circuit – Voltage Below Normal or Shorted to Low Source | |
| SPN 6780 FMI 2 (6649) | 6780 | 2 | Aftertreatment 1 Diesel Particulate Filter Soot Temperature Sensor – Data Erratic, Intermittent, or Incorrect | |
| SPN 6780 FMI 3 (6647) | 6780 | 3 | Aftertreatment 1 Diesel Particulate Filter Soot Temperature Sensor – Voltage Above Normal or Shorted to High Source | |
| SPN 6780 FMI 4 (6648) | 6780 | 4 | Aftertreatment 1 Diesel Particulate Filter Soot Temperature Sensor – Voltage Below Normal or Shorted to Low Source | |
| SPN 6802 FMI 31 (5278) | 6802 | 31 | Aftertreatment 1 Diesel Exhaust Fluid Dosing System Frozen – Condition Exists | |
| SPN 6810 FMI 11 (5691) | 6810 | 11 | Hybrid System OBD Related DTC Status – Root Cause Not Known | |
| SPN 6810 FMI 31 (5685) | 6810 | 31 | Hybrid System OBD Related DTC Status – Condition Exists | |
| SPN 6810 FMI 9 (5684) | 6810 | 9 | Hybrid System OBD Related DTC Status – Abnormal Update Rate | |
| SPN 723 FMI 2 (2322) | 723 | 2 | Engine Camshaft Speed/Position Sensor – Data Erratic, Intermittent, or Incorrect | |
| SPN 723 FMI 2 (778) | 723 | 2 | Engine Camshaft Speed / Position Sensor – Data Erratic, Intermittent, or Incorrect | |
| SPN 723 FMI 7 (731) | 723 | 7 | Engine Speed / Position Camshaft and Crankshaft Misalignment – Mechanical System Not Responding or Out of Adjustment | |
| SPN 729 FMI 3 (2555) | 729 | 3 | Engine Intake Air Heater 1 Circuit – Voltage Above Normal or Shorted to High Source | |
| SPN 729 FMI 4 (2556) | 729 | 4 | Engine Intake Air Heater 1 Circuit – Voltage Below Normal or Shorted to Low Source | |
| SPN 729 FMI 5 (383) | 729 | 5 | Engine Intake Air Heater 1 Circuit – Current Below Normal or Open Circuit | |
| SPN 7315 FMI 11 (6412) | 7315 | 11 | Propulsion System Active – Root Cause Not Known | |
| SPN 7321 FMI 3 (4153) | 7321 | 3 | Aftertreatment 1 Particulate Sensor Heater High Side Driver Circuit – Voltage Above Normal or Shorted to High Source | |
| SPN 7321 FMI 4 (5792) | 7321 | 4 | Aftertreatment 1 Particulate Sensor Heater High Side Driver Circuit – Voltage Below Normal or Shorted to Low Source | |
| SPN 7323 FMI 3 (5793) | 7323 | 3 | Aftertreatment 1 Particulate Sensor Heater Low Side Driver Circuit – Voltage Above Normal or Shorted to High Source | |
| SPN 7323 FMI 4 (4154) | 7323 | 4 | Aftertreatment 1 Particulate Sensor Heater Low Side Driver Circuit – Voltage Below Normal or Shorted to Low Source | |
| SPN 7329 FMI 2 (5581) | 7329 | 2 | Aftertreatment 1 Particulate Sensor Heater Power Supply – Data Erratic, Intermittent, or Incorrect | |
| SPN 7332 FMI 18 (7224) | 7332 | 18 | Aftertreatment Thermal Management Status – Data Valid But Below Normal Operating Range – Moderately Severe Level | |
| SPN 7418 FMI 11 (6315) | 7418 | 11 | Hybrid System OBD Related DTC Status- Root Cause Not Known | |
| SPN 747 FMI 13 (5297) | 747 | 13 | Engine/Transmission Match – Out of Calibration | |
| SPN 747 FMI 19 (5298) | 747 | 19 | Engine/Transmission Match – Received Network Data in Error | |
| SPN 7854 FMI 12 (6722) | 7854 | 12 | Aftertreatment 1 Diesel Particulate Filter Soot Sensor Module Voltage Converter – Bad Intelligent Device or Component | |
| SPN 7854 FMI 2 (5582) | 7854 | 2 | Aftertreatment 1 Particulate Sensor Module Battery Voltage Supply – Data Erratic, Intermittent, or Incorrect | |
| SPN 7854 FMI 3 (6651) | 7854 | 3 | Aftertreatment 1 Diesel Particulate Filter Soot Sensor Module – Voltage Above Normal or Shorted to High Source | |
| SPN 7854 FMI 4 (6652) | 7854 | 4 | Aftertreatment 1 Diesel Particulate Filter Soot Sensor Module – Voltage Below Normal or Shorted to Low Source | |
| SPN 7854 FMI 6 (6653) | 7854 | 6 | Aftertreatment 1 Diesel Particulate Filter Soot Sensor Module – Current Above Normal or Grounded Circuit | |
| SPN 81 FMI 16 (2754) | 81 | 81 | 16 | Engine Diesel Particulate Filter Intake Pressure – Data Valid but Above Normal Operating Range – Moderately Severe Level |
| SPN 84 FMI 19 (3525) | 84 | 19 | Wheel-Based Vehicle Speed – Received Network Data in Error | |
| SPN 84 FMI 2 (241) | 84 | 84 | 2 | Wheel-Based Vehicle Speed – Data Erratic, Intermittent, or Incorrect |
| SPN 84 FMI 9 (3526) | 84 | 9 | Wheel-Based Vehicle Speed – Abnormal Update Rate | |
| SPN 91 FMI 13 (6919) | 91 | 13 | SAE J1939 Multiplexed Accelerator Pedal or Lever Sensor System – Out of Calibration | |
| SPN 91 FMI 19 (1515) | 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 – 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 91 FMI 8 (4289) | 91 | 8 | Accelerator Pedal or Lever Position Sensor 1 Circuit Frequency – Abnormal Frequency or Pulse Width or Period | |
| SPN 91 FMI 9 (3326) | 91 | 9 | SAE J1939 Multiplexed Accelerator Pedal or Lever Sensor System – Abnormal Update Rate | |
| SPN 96 FMI 13 (6341) | 96 | 13 | SAE J1939 Multiplexing Configuration Error – Out of Calibration | |
| SPN 96 FMI 3 (2222) | 96 | 96 | 3 | Fuel Level (Main Tank) Sensor Circuit – Voltage Above Normal or Shorted to High Source |
| SPN 96 FMI 4 (2223) | 96 | 96 | 4 | Fuel Level (Main Tank) Sensor Circuit – Voltage Below Normal or Shorted to Low Source |
| SPN 96 FMI 9 (6339) | 96 | 9 | Fuel Level 1 – Abnormal Update Rate | |
| SPN 974 FMI 19 (6417) | 974 | 19 | SAE J1939 Multiplexing Remote Accelerator Pedal or Lever Sensor System – Received Network Data in Error | |
| SPN 974 FMI 3 (1595) | 372 | 974 | 3 | Remote Accelerator Pedal or Lever Position Sensor 1 Circuit – Voltage Above Normal or Shorted to High Source |
| SPN 974 FMI 4 (1361) | 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 16 (1852) | 97 | 97 | 16 | Water in Fuel Indicator – Data Valid But Above Normal Operating Range – Moderately Severe Level |
| SPN 97 FMI 3 (1845) | 97 | 97 | 3 | Water-in-Fuel Indicator Sensor Circuit – Voltage Above Normal or Shorted to High Source |
| 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 (1846) | 97 | 97 | 4 | Water in Fuel Indicator Sensor Circuit – Voltage Below Normal or Shorted to Low Source |
| SPN 97 FMI 4 (429) | 97 | 97 | 4 | Water in Fuel Indicator Sensor Circuit – Voltage Below Normal or Shorted to Low Source |
For full access to Cummins B6.7 (2017–2020) repair data, wiring diagrams, troubleshooting guides and more, sign up for a free Diesel Repair account today!
📱 Now Available: Diesel Repair Mobile App
Access fault codes, wiring diagrams, and repair docs right from your phone or tablet—whether you’re in the shop or roadside. The Diesel Repair mobile app is live and ready to keep techs connected on every job.