Main Relay Is Locked In Closed Position (Dtc P0687 / 1485-2) - Kubota 07-CR-E5 Manual

07-CR-E5,07-CR-TE5,07-CR-TIE5, DM

(34) Main Relay is Locked in Closed Position (DTC P0687 / 1485-2)

Behaviour during malfunction:
• Dead battery
Detection item:
• Failure of main relay
DTC set preconditions:
• Key switch is OFF
• Engine stops
DTC set parameter:
• Main relay stays active longer than 1 sec. without command
Engine warning light:
• OFF
Limp home action by engine ECU (system action):
• None
Recovery from error:
• Diagnostic counter = zero or Key switch turn OFF
(1) Input Terminal
(2) ACC
(3) Output Terminal
(4) START
(5) Terminal 1
(6) Terminal 2
(7) Terminal 3
(8) Terminal 4
1-S231
(a) Main Relay Pin Assignment
(b) Key Switch
(c) Main Relay
COMMON RAIL SYSTEM
9Y3200007CRS0352US0
(d) Battery
(e) Engine ECU Connector 2
(Machine Side)
(f) Engine ECU
9Y3200007CRS0353US0
KiSC issued 03, 2022 A