Kubota V3800-CR-TE4 Diagnosis Manual page 249

V3800-CR-TE4,V3800-CR-TIE4, DM
(1) Terminal SCV+ (2) Terminal SCV−
1. Measure the Resistance Between SCV Terminals
1. Place the key switch in the OFF position, unplug the ECU wiring
harness connector from the socket, and measure the resistance
between terminals B-7 and B-20 of the connector.
Insulation resistance
(between terminal
OK
NG
2. Measure the Resistance Between Terminals of SCV Unit
1. Refer to the SCV unit inspection procedures.
(Refer to page 1-S212)
OK
NG
(1) SCV (Suction Control Valve)
1-S222
(a) Terminal Layout
(b) SCV (Suction Control Valve)
Factory specification
Item Temperature
Resistance 20 °C (68 °F)
20 °C (68 °F)
and valve)
Go to "3. Check the Fuel System for the Existence of Air".
Go to "2. Measure the Resistance Between Terminals of SCV Unit".
Wiring harness open circuit or connector fault → Check and repair.
Faulty SCV → Repair or replace the pump.
COMMON RAIL SYSTEM
(c) ECU Connector 2
(B: 58 Pin)
9Y1200192CRS0763US0
Resistance
Approx. 2.1 Ω
100 MΩ or higher
9Y1200192CRS0781US0
9Y1200192CRS0404US0
KiSC issued 05, 2012 A