Measure The Resistance Between Ecu Terminals - Kubota V3800-CR-TE4 Diagnosis Manual

V3800-CR-TE4,V3800-CR-TIE4, DM
(1) Terminal COMMON
(2) Terminal TWV
(a) Terminal Layout
(b) Engine Cylinder No.
(c) Injector

1. Measure the Resistance Between ECU Terminals

1. Place the key switch in the OFF position, unplug the ECU wiring
harness connector from the socket, and measure the resistance
each terminal of the connector.
Engine cylinder / TWV number
Factory
specification
OK
NG
2. Check the DTC
1. Plug the ECU connector into socket, and start the engine.
2. Clear the DTCs that occurred previously, and check the
currently existing trouble.
Factory
specification
OK
NG
(a) CAN1 Connector
1-S169
(d) Rated Amperage Circuit
(e) High Voltage Generation
Circuit
No. 1 cylinder / TWV1
No. 3 cylinder / TWV2
No. 4 cylinder / TWV3
No. 2 cylinder / TWV4
1.5 Ω or lower
Go to "2. Check the DTC".
Go to "4. Measure the Resistance Between Injector Terminals".
No DTC is output.
Go to "3. Check the Connector and Wiring Harnesses for Poor Contact".
Faulty ECU → Replace.
COMMON RAIL SYSTEM
(f) Control Circuit
(g) ECU Connector 1
(A: 96 Pin)
9Y1200192CRS0704US0
Measurement terminal
A-49, A-73 ←→ A-74
A-1, A-25 ←→ A-26
A-49, A-73 ←→ A-51
A-1, A-25 ←→ A-3
9Y1200192CRS0705US0
9Y1200192CRS0287US0
KiSC issued 05, 2012 A