Kubota 07-CR-E5 Manual page 357

07-CR-E5,07-CR-TE5,07-CR-TIE5, DM
(a) Machine ECU (b) Engine ECU
1. DTC Judgment
1. Place the key switch in the OFF position, and attach the
diagnosis tool to the CAN1 connector.
2. Place the key switch in the ON position, check whether the DTC
is output or not.
NOTE
• If the "CAN 2 Bus off error" is output at the same time, carry
out this inspection first.
• Make sure that the engine ECU on the machine side
operates properly.
Service
specification
OK
NG
(a) CAN1 Connector
2. Check the Wiring Related to the CAN of the Common Rail
System
1. Check the wiring harness and connectors being connected to
engine ECU terminals V17 and V37 for a short or an open
circuit.
IMPORTANT
• Refer
PROCEDURE - (1) Basics of Checking Electrical /
Electronic Circuit Systems". (Refer to page 1-S326)
OK
NG
1-S319
(c) Engine ECU Connector 2
(Machine Side)
DTC must not be output.
Normal.
Go to "2. Check the Wiring Related to the CAN of the Common Rail
System".
to "6.[3] ELECTRIC
Replace the engine ECU.
Replace the faulty areas.
COMMON RAIL SYSTEM
A: To Other ECU
9Y3200007CRS0512US0
9Y3200007CRS0513US0
SYSTEM INSPECTION
9Y3200007CRS0514US0
KiSC issued 03, 2022 A