DTC CODES

PCode Code Brand Description
655 07 655 07 JOHN DEERE The fuel flow to cylinder #5 is lower than expected. (9640, 9560-Engine Type B, 9660, 9580, 9680)
656 05 656 05 JOHN DEERE The current to Injector #6 is less than expected. (9640, 9560, 9660, 9580, 9680)
656 06 656 06 JOHN DEERE The current to Injector #6 increases too rapidly. (9640, 9560, 9660, 9580, 9680)
656 07 656 07 JOHN DEERE The fuel flow to cylinder #6 is lower than expected. (9640, 9560-Engine Type B, 9660, 9580)
676 03 676 03 JOHN DEERE The Glow Plug Relay output is on when the relay is not energized by the Engine Control Unit. (9560-Engine Type C)
676 05 676 05 JOHN DEERE The Glow Plug Relay output is off when the relay is energized by the Engine Control Unit. (9560-Engine Type C)
729 03 729 03 JOHN DEERE Inlet Air Heater Relay Output (cc# 189) is high when Engine Control Unit is not energizing the Glow Plug Relay. (9540)
729 05 729 05 JOHN DEERE Inlet Air Heater Relay Output (cc# 189) is low when Engine Control Unit is energizing the Inlet Air Heater Relay. (9540)
970.31 970.31 JOHN DEERE 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 1075 02 JOHN DEERE Propulsion system Failure of the electric fuel pump. Fuel system not working.