Maintenance manual for sunray hfc4da1-2c china-IV diesel engines
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Fault Tree:
Check the sensor connection.
Connector fault Repair accordingly.
Check the ECU connector.
Connector fault
Repair accordingly.
Repair the harness. Electrical fault
Check continuity and insulating property.
Check the VVS.
VVS fault
Replace the VVS.
Get the Technical Support.