4-46 Fault code Description YANMAR SPN FMI Area Status 630 12 EEPROM EEPROM memory deletion error 522576 12 EEPROM memory reading error 522578 12 EEPROM memory writing error 522585 12 ECU internal fault CY 146 SPI communication fault 522588 12 Excessive voltage of supply 1 522589 12 Insuffi cient voltage of supply 1 522590 12 Sensor supply voltage error 1 522591 12 Sensor supply voltage error 2 522592 12 Sensor supply voltage error 3 522744 4 Actuator drive circuit 1 short to ground 522994 4 Actuator drive circuit 2 short to ground 523471 6 Actuator drive circuit 3 chort to ground 523473 12 AD converter fault 1 523474 12 AD converter fault 2 523475 12 External monitoring IC and CPU fault 1 523476 12 External monitoring IC and CPU fault 2 523477 12 ROM fault 523478 12 Shutoff path fault 1 523479 12 Shutoff path fault 2 523480 12 Shutoff path fault 3 523481 12 Shutoff path fault 4 523482 12 Shutoff path fault 5 523483 12 Shutoff path fault 6 523484 12 Shutoff path fault 7 523485 12 Shutoff path fault 8 523486 12 Shutoff path fault 9 523487 12 Shutoff path fault 10 523488 0 Recognition error of engine speed 3059 5 Breather heater (optional parts for 4TNV86CT and 4TNV98CT) Breather heater disconnection 4 Breather heater short circuit (GND) 3 Breather heater short circuit (VB) 522323 0 Air cleaner switch Air cleaner clogged alarm 522329 0 Water weparator switch Water separator alarm 167 5 Charge switch Charge switch disconnection 1 Charge alarm 100 4 Oil pressure switch Oil pressure switch disconnection 1 Low oil pressure alarm 522573 0 DPF Excessive PM accumulation (method C) 522574 0 Excessive PM accumulation (method P) 522575 7 Regeneration falure (stationary regeneration failure) 522577 11 Regeneration failure (staonary regeneration not performed) 3250 0 DPF intermediate temperature sensor DPF intermediate temperature sensor abnormal rise in temperature (post-injection malfunction)