Kubota V3800-CR-TE4 Diagnosis Manual page 202

V3800-CR-TE4,V3800-CR-TIE4, DM
(1) Terminal A-VCC2
(2) Terminal PIM
(3) Terminal A-GND4
1. Check the Boost Pressure Signals
1. Place the key switch in the OFF position, attach the diagnosis
tool to the CAN1 connector, and return the key switch to the ON
position again. Then, check the "Boost pressure" and "Boost
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.
Engine state
Key switch is ON
After engine start-up
NOTE
• Reference value (Factory specification) has complete
linearity.
OK
NG
(a) CAN1 Connector
1-S175
(a) Terminal Layout
(b) Boost Pressure Sensor
Factory specification
Actual boost pressure
Approx. 100 kPa
(1.02 kgf/cm
100 to 180 kPa
(1.02 to 1.83 kgf/cm
14.5 to 26.1 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)
9Y1200192CRS0712US0
Output voltage
Approx. 1.0 V
2
, 14.5 psi)
2
, 1.0 to 2.2 V
9Y1200192CRS0299US0
KiSC issued 05, 2012 A