Troubleshooting
Printed in U.S.A. 177 50940411/G0219
522241 3 P1223 Engine Fuel Rack Actuator Relay Circuit fault B
522241 4 P1222 Engine Fuel Rack Actuator Relay Circuit fault A
522241 7 P1221 Reserved N/A
522242 2 P1244 Cold Start Device Intermittent fault
522242 3 P1243 Cold Start Device Circuit fault B
522242 4 P1242 Cold Start Device Circuit fault A
522243 2 P1234 Air Heater Relay Intermittent fault
522243 3 P1233 Air Heater Relay Circuit fault B
522243 4 P1232 Air Heater Relay Circuit fault A
522243 5 P0543 Start Auxiliary Relay Start auxiliary relay interrupted
522243 6 P0541 Start Auxiliary Relay Start auxiliary relay GDN interrupted
522251 3 P1403 EGR Stepping Motor "A" Circuit fault B
522251 4 P1402 EGR Stepping Motor "A" Circuit fault A
522252 3 P1413 EGR Stepping Motor "B" Circuit fault B
522252 4 P1412 EGR Stepping Motor "B" Circuit fault A
522253 3 P1423 EGR Stepping Motor "C" Circuit fault B
522253 4 P1422 EGR Stepping Motor "C" Circuit fault A
522254 3 P1433 EGR Stepping Motor "D" Circuit fault B
522254 4 P1432 EGR Stepping Motor "D" Circuit fault A
522314 0 P1217 Engine Coolant Temperature Abnormal temperature
522323 0 P1101 Air Cleaner Switch Air cleaner clogged alarm
522329 0 P1151 Oil/Water Separator switch Oil/water separator alarm
522400 2 P0336 Crank Sensor Crank signal malfunction
522400 5 P0037 Crank Sensor No crank signal
522401 2 P0341 Cam Sensor Cam signal malfunction
522401 5 P0342 Cam Sensor No cam signal
522401 7 P1341 Cam Sensor Angle offset failure
522402 4 P1340 Aux Speed Sensor Shorted to low source
522567 12 U1401 EGR EGR target value out of range
522571 3 P1641 SCV (MPROP) SCV (MPROP) low side VB short-circuit
522571 6 P1643 SCV (MPROP) SCV (MPROP) low side GND short-circuit
522572 6 P062A SCV (MPROP)
High-pressure pump drive circuit (drive current
[high level])
522572 11 P1645 SCV (MPROP)
High-pressure pump drive circuit (pump overload
error)
522573 0 P2463 DPF Over-accumulation (method C)
522574 0 P1463 DPF Over-accumulation (method P)
522575 7 P2458 DPF
Regeneration defect (stationary regeneration
failure)
522576 12 P160E EEPROM EEPROM memory read error
522577 11 P2459 DPF
Regeneration defect (stationary regeneration not
performed)
522578 12 P160F EEPROM EEPROM memory write error
Table 55: Yanmar Engine Diagnostic Trouble Codes (DTC)
DTC Error Item
SPN FMI P-Code Part State