Troubleshooting SPN FMI Blink Code Definition 04 22 Sensor Supply Voltage Low 000627 04 76 ECU Unswitched Power Missing 000629 13 34 ECU Error 19 34 ECU to Pump Communication Error 000632 02 37 Fuel Shutoff Error 05 86 Fuel Shutoff Non-Functional 000636 02 44 Pump Position Input Noise 08 43 Pump Position Input Missing 10 44 Pump Position Input Pattern Error 000637 02 39 Crank Position Input Noise 08 38 Crank Position Input Missing 10 39 Crank Position Input Pattern Error 000729 03 Inlet Air Heater Signal High 05 Inlet Air Heater Signal Low 000810 02 92 Calculated Vehicle Speed Input Noise 000898 09 77 Vehicle Speed Invalid/Missing 000970 02 Auxiliary Engine Shutdown Switch Signal Invalid 31 83 Auxiliary Engine Shutdown Switch Active 000971 31 84 External Engine Derate Switch Active 001069 02 93 Tire Size Error 001076 02 66 Pump Detected Defect 001077 07 35 Attempting to Fuel Without Command 11 68 Pump Supply Voltage Out of Range 12 97 Pump Self Test Error 19 96 Pump Detected Communication Error 31 36 Pump Initiated Engine Protection 001078 07 95 ECU/Pump Timing Moderately Out of Sync 11 87 ECU/Pump Speed Out of Sync 31 94 ECU/Pump Timing Extremely Out of Sync 001079 03 21 Sensor Supply 1 Voltage High 04 22 Sensor Supply 1 Voltage Low 001080 03 51 Sensor Supply 2 Voltage High 04 52 Sensor Supply 2 Voltage Low 001109 31 Engine Shutdown Warning 001110 31 82 Engine Shutdown 001485 02 89 Pump Power Relay Fault 001569 31 47 Fuel Derate 002000 13 Security Violation OURGP11,0000140 –19–21NOV03–2/2 45-27 021604 PN=221