Actions For Non-Reoccurring Malfunctions - Kubota 07-CR-E5 Manual

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

[4] ACTIONS FOR NON-REOCCURRING MALFUNCTIONS

• In cases where the malfunction does not reoccur, perform the actions below to determine the cause of the
malfunction.
• In cases where the malfunction does not reoccur at the dealer, sales company or workshop, perform the work that
actually caused the malfunction.
• Check the fuel pipe system [including the fuel feed pump (electromagnetic fuel feed pump) and tank], intake
system and exhaust system.
• If the malfunction does not reoccur, there may be an engine ECU malfunction. For diagnostic purposes only,
temporarily replace the engine ECU with a unit that functions normally to perform the check procedure. At the
same time, be sure to perform learning for the supply pump and input QR Code for injectors. If there would be no
change, engine ECU should not be replaced.
Verify that there is no Diagnostic Trouble Code (DTC) stored in the memory.
Using the trouble check sheet as a base, perform a reoccurrence test in
"Reoccurrence" mode. Use this data (engine ECU (PCM) voltage value, etc.)
to determine the cause of the malfunction.
Assume that an electrical system wiring harness or connector is the cause of
the malfunction and vibrate these components by hand to verify whether or
not a malfunction occurs and a DTC is generated.
Assume that an electrical system female connector terminal is the cause of
the malfunction and verify that the connection points are not defective.
Recommended Tools: KOWA Precision Handling
Feeling Tool Set (KLM-10- 20) Depending on the terminal, a matching size
may not be available.
Insert the male terminal that matches the shape of the female terminal and
check for looseness.
Action
Malfunction symptom
Dead battery
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1-S6
COMMON RAIL SYSTEM
9Y3200007CRS0008US0
Idle speed
abnormal engine
Engine will not
stall sluggish
start
poor
acceleration
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KiSC issued 03, 2022 A