Maintenance manual for sunray hfc4da1-2c china-IV diesel engines
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Fault Tree:
Check the sensor connection.
Connector fault Repair accordingly.
Visually check the sensor.
Sensor fault
Replace the sensor.
Check the ECU connector.
Connector fault Repair accordingly.
Repair accordingly.
Repair the harness.
Signal fault
Check the signals of camshaft and crankshaft
sensor with oscilloscope if possible.
Check continuity and insulating property.
Electrical fault
Check the target wheel of camshaft.
Fault of target wheel
Replace the target wheel.
Check the positioning of camshaft target wheel.
False positioning of camshaft target wheel
Correct the positioning of target wheel.
Get the Technical Support.
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