Kubota 07-CR-E5 Manual page 371

07-CR-E5,07-CR-TE5,07-CR-TIE5, DM
8. Check the Key Switch Signal -1
1. Connect the diagnosis tool to diagnostic connector (CAN1
connector) and turn the key switch ON.
2. Using the diagnosis tool data monitor function, verify the "Key
Switch" data when the key switch is turned ON then OFF.
Service When the key switch is set to the ON and OFF, the data
specification output is turned ON and OFF respectively.
IMPORTANT
• Do not keep the key switch in the OFF position for more
than 2 seconds, otherwise a communication error will
occur.
OK Engine ECU internal fault → Replace the engine ECU.
NG Con- Engine ECU internal fault → Replace the engine ECU.
stantly
ON
Consis- Go to "9. Check the Key Switch Signal -2".
tently
OFF
(a) CAN1 Connector
9. Check the Key Switch Signal -2
1. Place the key switch in the ON position, and measure the
voltage at engine ECU terminal V13 / V33.
Service
10 V or higher
specification
OK Check whether the connector is poorly connected.
OK Replace the engine ECU.
NG Repair the connector.
NG Go to "10. Check the Key Switch -1".
10. Check the Key Switch -1
1. Set the key switch to the ON position, and measure the voltage
at the key switch output terminal (3).
Service
10 V or higher
specification
OK Check the wiring harness between the key switch output terminal and
engine ECU terminal (V13 / V33), and the fuse. → Replace.
NG Go to "11. Check the Key Switch - 2".
(1) Input Terminal
(2) ACC
(3) Output Terminal
(4) START
1-S333
COMMON RAIL SYSTEM
9Y3200007CRS0541US0
9Y3200007CRS0542US0
(a) Key Switch
9Y3200007CRS0543US0
KiSC issued 03, 2022 A