Egr Actuator Abnormality (Dtc P0403 / 523574-3, Dtc P0404 / 523574-4, P0409 / 523572-4) - Kubota V3800-CR-TE4 Diagnosis Manual

V3800-CR-TE4,V3800-CR-TIE4, DM
(21) EGR Actuator Abnormality (DTC P0403 / 523574-3, DTC P0404 / 523574-4,
P0409 / 523572-4)
P0403 / 523574-3: EGR actuator open circuit
Behaviour during malfunction:
• Insufficient output
• Worsening exhaust gas performance
Detection item:
• EGR actuator open circuit
DTC set preconditions:
• Battery voltage is normal
• No DTC of U0077 "CAN1 Bus off"
• EGR control line is normal
DTC set parameter:
• EGR actuator open error signal received via CAN
Engine warning light:
• ON
System action:
• Output limitation: Approximately 75 % of normal condition
• EGR stop
Recovery from error:
• Key switch turn OFF
P0404 / 523574-4: EGR actuator coil short
Behaviour during malfunction:
• Insufficient output
• Worsening exhaust gas performance
Detection item:
• EGR actuator coil short
DTC set preconditions:
• Battery voltage is normal
• No DTC of U0077 "CAN1 Bus off"
• EGR control line is normal
DTC set parameter:
• EGR actuator coil short error signal received via CAN
Engine warning light:
• ON
System action:
• Output limitation: Approximately 75 % of normal condition
• EGR stop
Recovery from error:
• Key switch turn OFF
1-S190
COMMON RAIL SYSTEM
9Y1200192CRS0734US0
9Y1200192CRS0735US0
KiSC issued 05, 2012 A