Hello,
here is a most frequent faults on John Deere Phoenix L1x-2x ECUs in J1939 format (scanner can add 0 at start to make all values 6-digits).
Most of them should be repaired, some systems can be disabled by flashing proper ECU modification with disabling DPF / DOC / EGR systems and some other small DTC fix. We also tested a power modification by factory methods and custom tuning.


SPN FMI Description of DTC
51 14 Propulsion system EGR failure. Engine power is limited.
91 09 Throttle input not valid or not received A00 94 01 1 Fuel pressure too low - less than 80kPa / 11.6 PSI (9540)
94 03 Fuel Pressure Sensor (cc# 131) voltage out of range high - greater than 4 V DC (9640, 9560, 9660, 9580, 9680)
94 04 Fuel Pressure Sensor (cc# 131) voltage out of range low. (9640, 9560, 9660, 9580, 9680)
94 10 The rail pressure drops too fast when the engine is motoring and the high pressure pump is off. (9640, 9560, 9660, 9580, 9680)
94 13 Fuel Pressure Sensor reading is incorrect. (9640, 9560, 9660, 9580, 9680)
94 17 During starting, rail pressure is not developed after a short time cranking. (9640, 9560, 9660, 9580, 9680)
94 18 Fuel pressure too low - less than 100 kPa / 14.7 PSI at low idle (9540)
97 03 Water in Fuel Sensor (cc# 136) voltage out of range high (9640, 9560-Engine Type B, 9660, 9580, 9680)
97 04 Water in Fuel Sensor (cc# 136) voltage out of range low (9640, 9560-Engine Type B, 9660, 9580, 9680)
97 31 Water is detected in fuel. (9640, 9560-Engine Type B, 9660, 9580, 9680)
100 01 Oil Pressure Sensor is open after engine rpm is above cranking speed
100 04 Oil Pressure Sensor is closed when engine is not running (9640, 9560, 9660, 9580, 9680)
101 00 Propulsion system Crankcase high pressure. Engine power is limited. Check the gas breakthrough filter.
101 16 Propulsion system Crankcase high pressure. Check the gas breakthrough filter.
103 00 Propulsion system Turbocharger speed is high. Engine power is limited. Reduce engine load and speed.
105 00 Engine Manifold Air Temperature Sensor is above 100°C (9560-Engine Type C only)
105 03 Engine Manifold Air Temperature Sensor voltage is out of range high. The device or wiring is faulty. (9640, 9560, 9660, 9580, 9680)
105 04 Engine Manifold Air Temperature Sensor voltage is out of range low. The device or wiring is faulty. (9640, 9560, 9660, 9580, 9680)
105 16 Engine Manifold Air temperature above 88°C / 190°F (moderately severe level). Maximum power level is derated. Power boost is disabled.
107 00 Air Filter Restricted Switch indicates a plugged air filter.
109 01 Propulsion system Coolant pressure is low. Engine power is limited.
109 17 Propulsion system Coolant pressure is low. Check the pressure cap and leak tightness in the cooling system.
109 18 Propulsion system Coolant pressure is low. Engine power is limited. Check the pressure cap and leak tightness in the cooling system.
110 00 Engine coolant temperature above 115°C / 240°F (most severe level). Maximum power level is derated. Power boost is disabled.
110 03 Engine Coolant Temperature Sensor voltage is out of range high. The device or wiring is faulty.
110 04 Engine Coolant Temperature Sensor voltage is out of range low. The device or wiring is faulty.
110 15 Engine Coolant Temperature is above 105°C. (9560-Engine Type C)
110 16 Engine coolant temperature above 110°C / 230°F for 9640, 9560, 9660, 9580 and 9680 or above 100°C / 212°F for 9540. Maximum power level is derated. Power boost is disabled.
111 01 Coolant level low. Engine coolant temperature above 125°C / 257°F. Maximum power level is derated. Power boost is disabled.
111.07 Propulsion system Coolant level circuit malfunction. The coolant level monitor is not working. Check coolant level.
111.17 Propulsion system Coolant level below service switch. Add coolant.
111.18 Propulsion system Coolant level is low. Add coolant and inspect for leaks.
157.17 Propulsion system The pressure in the fuel line is low at startup. Check filters and fuel level.
158 17 Controller not powered down properly. (9640, 9560, 9660, 9580, 9680)
168 01 Electrical system Battery voltage is low.
174 00 Engine fuel temperature is too high (greater than 75°C / 167°F). Injector pump may be damaged because hot fuel loses its lubrication properties. (9540)
174 03 Engine Fuel Temperature Sensor voltage is out of range high. The device or wiring is faulty. Injector pump may be damaged because hot fuel loses its lubrication properties. (9640, 9560, 9660, 9580, 9680)
174 04 Engine Fuel Temperature Sensor voltage is out of range low. The device or wiring is faulty. Injector pump may be damaged because hot fuel loses its lubrication properties. (9640, 9560, 9660, 9580, 9680)
174 15 Engine fuel temperature above normal range (greater than 65°C / 149°F). Maximum power level and power boost are derated. (9540)
174 16 Engine fuel temperature above normal range (greater than 65°C / 149°F for 9640, 9560, 9660, 9580, 9680 or greater than 73°C / 163°F for 9540). Maximum power level and power boost are derated.
174 31 Engine Fuel Temperature Sensor is out of range. Maximum power level and power boost are derated. (9540)
189 00 Low fuel pressure (9540)
190 00 Engine over-speed (greater than 2800 rpm). (9540)
190 16 Engine speed too high (greater than 2800 rpm). Engine Control Unit reduce fuel flow until speed is below 2200 rpm (9540)
412 00 Propulsion system EGR temperature is high. Engine power is limited. Reduce engine load and speed. Check the cooling system for contamination.
412 15 Propulsion system EGR temperature is high. Engine power is limited. Reduce engine load and speed. Check the cooling system for contamination.
412 16 Propulsion system EGR temperature is high. Engine power is limited. Reduce engine load and speed. Check the cooling system for contamination.
611 03 The injector driver has detected a short to battery in the injector wiring. (9640, 9560, 9660, 9580, 9680)
611 04 The injector driver has detected a short to ground in the injector wiring. (9640, 9560, 9660, 9580, 9680)
627 01 All injector currents are out of specification. The injector pull-in current is too low or the injector hold-in current is incorrect. (9640, 9560, 9660, 9580, 9680)
627 04 Engine Control Unit Power (cc# 042) missing at Engine Control Unit while Electronic Power (cc# 021) is on. (9540)
629 19 Engine Control Unit not receiving messages from Pump. (9540)
632 02 Fuel shutoff error condition detected. (9540)
632 05 The Engine Control Unit does not detect a change in engine speed after the Key Switch is turned off. Fuel shutoff not functioning correctly. (9540)
636 02 Electrical noise detected on Pump Position Sensor + (cc# 172) and/or Pump Position Sensor - (cc# 173)
636 08 Pump Position Sensor signal is missing
636 10 Pump Position Sensor signal has incorrect pulse pattern
637 02 Electrical noise detected on Pump Position Sensor + (cc# 174) and/or Pump Position Sensor - (cc# 175)
637 07 Position relationship between Engine Speed Sensor and Pump Position Sensor not correct (9640, 9560, 9660, 9580, 9680)
637 08 Engine Speed Sensor signal is missing
637 10 Engine Speed Sensor signal has incorrect pulse pattern
641 16 Propulsion system The temperature of the turbocharger drive is high. Reduce engine load and speed.
651 05 The current to Injector #1 is less than expected. (9640, 9560, 9660, 9580, 9680)
651 06 The current to Injector #1 increases too rapidly. (9640, 9560, 9660, 9580, 9680)
651 07 The fuel flow to cylinder #1 is lower than expected. (9640, 9560-Engine Type B, 9660, 9580)
652 05 The current to Injector #2 is less than expected. (9640, 9560, 9660, 9580, 9680)
652 06 The current to Injector #2 increases too rapidly. (9640, 9560, 9660, 9580, 9680)
652 07 The fuel flow to cylinder #2 is lower than expected. (9640, 9560-Engine Type B, 9660, 9580, 9680)
653 05 The current to Injector #3 is less than expected. (9640, 9560, 9660, 9580, 9680)
653 06 The current to Injector #3 increases too rapidly. (9640, 9560, 9660, 9580, 9680)
653 07 The fuel flow to cylinder #3 is lower than expected. (9640, 9560-Engine Type B, 9660, 9580, 9680)
654 05 The current to Injector #4 is less than expected. (9640, 9560, 9660, 9580, 9680)
654 06 The current to Injector #4 increases too rapidly. (9640, 9560, 9660, 9580, 9680)
654 07 The fuel flow to cylinder #4 is lower than expected. (9640, 9560-Engine Type B, 9660, 9580, 9680)
655 05 The current to Injector #5 is less than expected. (9640, 9560, 9660, 9580, 9680)
655 06 The current to Injector #5 increases too rapidly. (9640, 9560, 9660, 9580, 9680)
655 07 The fuel flow to cylinder #5 is lower than expected. (9640, 9560-Engine Type B, 9660, 9580, 9680)
656 05 The current to Injector #6 is less than expected. (9640, 9560, 9660, 9580, 9680)
656 06 The current to Injector #6 increases too rapidly. (9640, 9560, 9660, 9580, 9680)
656 07 The fuel flow to cylinder #6 is lower than expected. (9640, 9560-Engine Type B, 9660, 9580)
676 03 The Glow Plug Relay output is on when the relay is not energized by the Engine Control Unit. (9560-Engine Type C)
676 05 The Glow Plug Relay output is off when the relay is energized by the Engine Control Unit. (9560-Engine Type C)
729 03 Inlet Air Heater Relay Output (cc# 189) is high when Engine Control Unit is not energizing the Glow Plug Relay. (9540)
729 05 Inlet Air Heater Relay Output (cc# 189) is low when Engine Control Unit is energizing the Inlet Air Heater Relay. (9540)
970.31 Immobilizer system Error authentication key or control unit. The engine control unit issued a command to turn off the engine. Check for the correct key for the machine. Restart the engine to try to recover the machine.
1075 02 Propulsion system Failure of the electric fuel pump. Fuel system not working.
1075 04 Propulsion system Malfunction of the electric fuel pump circuit. Fuel system not working.
1075 06 Propulsion system Malfunction of the electric fuel pump circuit. Fuel system not working.
1075 09 Propulsion system Failure of the electric fuel pump. Fuel system not working.
1076 02 The High Pressure Solenoid within the pump is continuously energized, the Pump Control Unit is unable to detect closure of the High Pressure Solenoid Valve or the internal pump speed sensor is broken. (9540)
1077 07 The High Pressure Solenoid Valve is closed when the Engine Control Unit is commanding the Pump Control Unit to stop delivering fuel. (9540)
1077 11 The Pump Control Unit senses an abnormal voltage on Pump Power (cc# 061). (9540)
1077 12 The Pump Control Unit detects an error during a self test. (9540)
1077 19 The Pump Control Unit is not receiving any ECU/CAN messages while detecting a signal on Crank Speed Out (cc# 187). (9540)
1077 31 Injection Pump initiated engine protection due to Diagnostic Trouble Code 174.31, 1076.02, 1077.12, 1078.07 or 1078.31. Engine will derate. (9540)
1078 07 The Pump Control Unit receives a crank signal from the Engine Control Unit that is moderately different than the internal timing within the Pump. Engine will be derated. (9540)
1078 11 The Engine Control Unit detects a difference between the internal pump timing and engine speed. (9540)
1078 31 The Pump Control Unit receives a crank signal from the Engine Control Unit that is extremely different than the internal timing within the Pump. Engine will be derated. (9540)
1079 03 Sensor Supply Voltage (cc# 131) too high (greater than 4.95 V DC). (9540)
1079 04 Sensor Supply Voltage (cc# 131) too low (less than 4.0 V DC). (9540)
1080 03 Rail Pressure Sensor Power (cc# 721) voltage too high. (9640, 9560, 9660, 9580, 9680)
1080 04 Rail Pressure Sensor Power (cc# 721) voltage too low. (9640, 9560, 9660, 9580, 9680)
1080 04 Rail Pressure Sensor Power (cc# 721) voltage too low. (9540)
1110 31 Propulsion system Stop to protect the engine.
1136 00 Propulsion system The internal temperature of the engine control unit is high. Engine speed is limited.
1180 00 Propulsion system The exhaust temperature is high. Engine power is limited. Reduce engine load and speed. Check the cooling system for contamination.
1180 16 Propulsion system The exhaust temperature is high. Engine power is limited. Reduce engine load and speed. Check the cooling system for contamination.
1639 01 Propulsion system Motor fan speed is low. Check fan drive system.
1347 03 CC# 178 Shorted to power. (9560-Engine Type C)
1347 05 Driver detects problem in circuit to Pump Solenoid Low (cc# 178). (9640, 9560, 9660, 9580, 9680)
1347 07 Rail Pressure Control is unable to match required rail pressure. It may bee too high or too low. (9640, 9560, 9660, 9580, 9680)
1347 10 Pump Solenoid is not delivering expected fuel flow. (9640, 9560-Engine Type B, 9660, 9580, 9680)
1348 05 Driver detects problem in circuit to Pump Solenoid Low (cc# 179). (9640, 9560-Engine Type B, 9660, 9580, 9680)
1348 10 Pump Solenoid is not delivering expected fuel flow. (9640, 9560-Engine Type B, 9660, 9580, 9680)
1485 02 Pump Power (cc# 061) is powered when Engine Control Unit is off. (9540)
1569 31 Engine protection - power derated due to other faults. This code occurs in conjunction with 105.16, 110.00, 110.03, 110.04, and
2630 00 Propulsion system The charge air cooler temperature is high. Engine power is limited. Reduce engine load and speed. Check the cooling system for contamination.
2630 15 Propulsion system The temperature at the outlet of the charge air cooler is high. Check the cooling system for contamination.
2630 16 Propulsion system The temperature at the outlet of the charge air cooler is high. Engine power is limited. Reduce engine load and speed. Check the cooling system for contamination.
2790 16 Propulsion system The temperature at the outlet of the turbocharger is high. Engine power is limited. Reduce engine load and speed.
3246 00 Exhaust filtration system The temperature at the exhaust filter outlet is high. Engine power is limited.
3480 01 Exhaust filtration system Error dosing fuel intake pressure. Active exhaust filter cleaning not available.
3480 03 Exhaust filtration system Malfunction of the fuel metering pressure sensor circuit. Active exhaust filter cleaning not available.
3480 04 Exhaust filtration system Malfunction of the fuel metering pressure sensor circuit. Active exhaust filter cleaning not available.
3482 16 Exhaust filtration system Malfunction of fuel metering shut-off valve. Active exhaust filter cleaning not available.
3711 14 Exhaust filtration system Exhaust filter inlet temperature not reached. Active exhaust filter cleaning not available.
3711 31 Exhaust filtration system Exhaust filter inlet temperature not reached. Active exhaust filter cleaning not available.
3719 00 Exhaust filtration system Exhaust filter blocked. Engine power is limited.
3719 13 Exhaust filtration system The exhaust filtration system requires maintenance.
3719 14 Exhaust filtration system Exhaust filter blocked. Engine power is limited. Initiate service cleaning.
3719 16 Exhaust filtration system Exhaust filter blocked. Engine power is limited. Start cleaning the filter in the parked state on the engine settings page in accordance with the driver’s manual.
3720 15 Exhaust filtration system The ash content in the exhaust filter is high. Perform filter maintenance.
3720 16 Exhaust filtration system The ash content in the exhaust filter is high. Perform filter maintenance.
3936 00 Exhaust filtration system Unexpected temperature in exhaust filter. Engine power is limited.
4766 16 Exhaust filtration system Exhaust filter temperature higher than expected. Active exhaust filter cleaning not available.
4766 17 Exhaust filtration system Error cleaning system. Cannot continue cleaning.
4766 18 Exhaust filtration system Error cleaning system. Cannot continue cleaning.
4795 31 Exhaust filtration system The exhaust filter is missing or severely damaged. Engine power is limited.
5018 00 Exhaust filtration system Unexpected temperature in exhaust filter. Engine power is limited.