Kubota 07-CR-E5 - Rail Pressure Sensor Abnormality (DTC P0192; 157-4, P0193; 157-3)

COMMON RAIL SYSTEM
07-CR-E5,07-CR-TE5,07-CR-TIE5, DM
1-S175
(14) Rail Pressure Sensor Abnormality (DTC P0192 / 157-4, P0193 / 157-3)
P0192 / 157-4: Rail pressure sensor: Low
Behaviour during malfunction:
• Insufficient output
• Worsening exhaust gas performance
• Worsening running noise
• Increase in white smoke
• Engine stops
Detection item:
• Ground short circuit of sensor / harness
• Failure of sensor
DTC set preconditions:
• Battery voltage is normal
• Sensor supply voltage VCC# is normal
DTC set parameter:
• Voltage of rail pressure sensor is 0.7 V or less
Engine warning light:
•ON
Limp home action by engine ECU (system action):
• Output limitation: Approximately 50 % of normal condition
• Speed limitation (Accelerator limitation: 50 %)
• EGR stop
• Intake throttle 100 % open
• Engine forcibly stopped 60 sec. later
Recovery from error:
• Key switch turn OFF
9Y3200007CRS0232US0
P0193 / 157-3: Rail pressure sensor: High
Behaviour during malfunction:
• Insufficient output
• Worsening exhaust gas performance
• Worsening running noise
• Increase in white smoke
• Engine stops
Detection item:
• Open circuit or +B short circuit of sensor / harness.
• Failure of sensor
DTC set preconditions:
• Battery voltage is normal
• Sensor supply voltage VCC# is normal
DTC set parameter:
• Voltage of rail pressure sensor is 4.9 V or above
Engine warning light:
•ON
Limp home action by engine ECU (system action):
• Output limitation: Approximately 50 % of normal condition
• Speed limitation (Accelerator limitation: 50 %)
• EGR stop
• Intake throttle 100 % open
• Engine forcibly stopped 60 sec. later
Recovery from error:
• Key switch turn OFF
9Y3200007CRS0233US0
KiSC issued 03, 2022 A