331G electric issues causing def fault code

[Jacrya]

Good morning, I’ve got a John Deer 331G skid steer. It’s throwing 5 different fault codes. It’s also saying “Def fault code, power and speed is decreased” two days ago it worked just fine. I cleaned both ground contacts by the fuse boxes. Any other ideas? It seems like it may be a ground issue. Thanks

 

[mg2361]

Need 2 things. The complete machine serial number, and a list of all the codes, active and stored, in their numerical format (SPN/FMI).

 

[Jacrya]

Need 2 things. The complete machine serial number, and a list of all the codes, active and stored, in their numerical format (SPN/FMI).

Sorry for my delay,
DCU 4341.05
DCU 523557.07
DCU 523636.00
VCU 522820.05
EMU 920.05

SN: 1T0331GMVJF343122

 

[mg2361]

4341.05 - DEF dosing unit pressure line heater has high resistance
523557.07 - SCR termination. Basically the SCR system is shut down due to another issue.
523636.00 - Engine is in Derate
522820.05 - High flow solenoid circuit fault
920.05 - Alarm output circuit fault

The 4341.05 is why your engine power is derated.