Checking The Power And Ground System - Kubota V3800-CR-TE4 Diagnosis Manual

V3800-CR-TE4,V3800-CR-TIE4, DM
(3) Checking The Power And Ground System (Main Relay, ECU Circuit)
If the ECU is not operating, check the following.
Malfunction symptoms:
• Engine does not start.
• Engine warning light is not lit.
• A diagnosis tool communication error occur.
(1) Input Terminal
(2) ACC
(3) Output Terminal
(4) START
(5) Terminal 1
(6) Terminal 2
(7) Terminal 3
(8) Terminal 4
1-S297
(a) Main Relay Terminal Layout
(b) Key Switch
(c) Main Relay
COMMON RAIL SYSTEM
(d) Battery
(e) ECU Connector 2
(B: 58 Pin)
9Y1200186CRS0132US0
KiSC issued 05, 2012 A