Rail Pressure Sensor Abnormality (Dtc P0192 / 157-4, P0193 / 157-3) - Kubota V3800-CR-TE4 Diagnosis Manual

V3800-CR-TE4,V3800-CR-TIE4, DM

(12) Rail Pressure Sensor Abnormality (DTC P0192 / 157-4, P0193 / 157-3)

P0192 / 157-4: Rail pressure sensor abnormality (Low side)
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
System action:
• Output limitation: Approximately 50 % of normal condition
• Speed limitation (Accelerator limitation: 50 %)
• Rail pressure limitation: Command pressure ≤ 80 MPa (820 kgf/cm
• EGR stop
• Engine forcibly stopped 60 sec. later
Recovery from error:
• Key switch turn OFF
P0193 / 157-3: Rail pressure sensor abnormality (High side)
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
System action:
• Output limitation: Approximately 50 % of normal condition
• Speed limitation (Accelerator limitation: 50 %)
• Rail pressure limitation: Command pressure ≤ 80 MPa (820 kgf/cm
• EGR stop
• Engine forcibly stopped 60 sec. later
Recovery from error:
• Key switch turn OFF
2
, 12000 psi)
2
, 12000 psi)
1-S162
COMMON RAIL SYSTEM
9Y1200192CRS0695US0
9Y1200192CRS0696US0
KiSC issued 05, 2012 A