Kubota V3800-CR-TE4 Diagnosis Manual page 213

V3800-CR-TE4,V3800-CR-TIE4, DM
5. Measure the ECU Terminal Voltage
1. Place the key switch in the OFF position, and unplug the ECU
wiring harness connector 1 from the socket.
2. Place the key switch in the ON position, and measure the
voltage between ECU terminals A-18 and A-44.
Factory
Approx. 5 V
specification
OK Go to "6. Check the Connectors".
NG Replace the ECU.
(1) ECU Connector 1 (96 Pin)
(2) ECU Connector 2 (58 Pin)
6. Check the Connectors
1. Check ECU terminals A-18, A-42 and A-44 (at the ECU side)
and the connectors (at the wiring harness side) for incorrect
connection, inappropriate fitting, poor contact.
Factory Must be free from incorrect connection, inappropriate fitting,
specification poor contact.
OK Go to "7. Check the Wiring Harness".
NG Repair or replace.
7. Check the Wiring Harness
1. Check the wiring harness being connected to ECU terminals
A-18, A-42 and A-44 for a short or an open circuit.
Factory
Must be free from shorts and open circuit.
specification
OK Go to "8. Check the Sensor".
NG Repair.
8. Check the Sensor
1. Disconnect the sensor and check the following items.
• Is there a large amount of magnetic foreign material
adhering to the sensor surface?
• Are there interference marks of the pulsar and the sensor?
• Are there any pulsar gear abnormalities?
OK Replace the ECU and test.
NG Repair or replace the sensor.
(1) Camshaft Position Sensor
(G Sensor)
1-S186
COMMON RAIL SYSTEM
(3) A-1 Pin Position
(4) B-1 Pin Position
9Y1200192CRS0726US0
9Y1200192CRS0727US0
9Y1200192CRS0728US0
9Y1200192CRS0326US0
KiSC issued 05, 2012 A