Yanmar 3TNV82A Troubleshooting Manual page 200

FAILURE DIAGNOSIS
Work Description
1. Work with the diagnosis tool:
• Turn the key switch off, and turn the key switch on again.
• Connect the diagnosis tool, and check if any error is detected on the current fault indication.
Check the error history indication, confirm error occurrence situation if any error
Unavailable
history is indicated.
• Turn the key switch on/off again, and perform the work [1. Work with the diagnosis
tool:].
Available
• Rewrite the E-ECU software.
• Replace the E-ECU.
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Method and Procedure of Failure Diagnosis
TNV DI Service Manual