Kubota V3800-CR-TE4 Diagnosis Manual page 190

V3800-CR-TE4,V3800-CR-TIE4, DM
(1) Terminal A-VCC1
(2) Terminal PFUEL
(3) Terminal A-GND6
1. Check the Rail Pressure Sensor Signals
1. Place the key switch in the ON position, and check the "Actual
rail pressure" and "Rail pressure sensor output voltage" on the
diagnosis tool data monitor.
2. Next, start the engine, change the depressed amount of the
accelerator pedal, and check the same items again.
Factory
specification
NOTE
• When idling: Approx. 40 to 50 MPa (410 to 500 kgf/cm
to 7200 psi)
During no-load maximum speed: 95.0 to 115 MPa
(969 to 1170 kgf/cm
• Reference value (Factory spec.) has complete linearity.
OK
NG
(a) CAN1 Connector
1-S163
(a) Terminal Layout
(b) Rail Pressure Sensor
Depends on the rotation speed, load (After warm-up)
1. When stopped: Approx. 1.0 V
2. When idling: 1.65 to 1.80 V
3. During no-load maximum speed: 2.50 to 2.85 V
4. During acceleration: 2.5 to 3.3 V
2
, 13800 to 16600 psi)
Clear the DTC and check whether it is output again or not.
OK Normal.
NG Replace the ECU.
Go to "2. Measure the ECU terminal voltage".
COMMON RAIL SYSTEM
(c) ECU Connector 1
(A: 96 Pin)
9Y1200192CRS0697US0
2
, 5800
9Y1200192CRS0275US0
KiSC issued 05, 2012 A