D3 Main Relay opens too early / too late - main relay shut off too early (before EEPROM update) - P0685 ECM/PCM Power Relay Control Circuit /Open
Main Relay opens too early / too late - main relay shut off too early (before EEPROM update) - P0685 ECM/PCM Power Relay Control Circuit /Open
If Failure to cool in electrical system, Compressor clutch not engaging.Expansion valve not functioning. Restriction in refrigerant system. See your John Deere dealer.Faulty wiring or loose connections.Defective temperature control switch.Outside temperature too low, below 21gets warmer.Condenser is overheating. Clean condenser screens, cores and fins of condenser and radiator.