Yanmar 3TNV82A Troubleshooting Manual page 50

FAILURE DIAGNOSIS
Diagnosis Description
1) Initial diagnosis
with the diagnosis
tool
2) Check of
connectors/wiring
3) Failure Diagnostic
Work
1-48
DTCs (Diagnostic Trouble Codes) General Description
• Check the fault indication.
• Check the sensor voltage.
*For details of the method and the procedure of diagnosis, see P.1-156
• Before beginning your work, be sure to turn off the key switch.
• Check that the connector of the cooling water temperature sensor is correctly
inserted.
• Check that the wiring of the cooling water temperature sensor is not
disconnected or the insulation of the wiring is not peeled.
• Check the resistance value of the cooling water temperature sensor.
• Check the harness for correct continuity.
• Check the output voltage of the cooling water temperature sensor.
*For details of the method and the procedure of diagnosis, see P.1-156
TNV DI Service Manual