Checking The Power And Ground System (Main Relay, Engine Ecu Circuit) - Kubota 07-CR-E5 Manual

07-CR-E5,07-CR-TE5,07-CR-TIE5, DM
(3) Checking The Power And Ground System (Main Relay, Engine ECU
Circuit)
If the engine 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-S330
(a) Main Relay Pin Assignment
(b) Key Switch
(c) Main Relay
(d) Battery
COMMON RAIL SYSTEM
(e) Engine ECU Connector 2
(Machine Side)
(f) Engine ECU
9Y3200007CRS0533US0
KiSC issued 03, 2022 A