Geely EC718 2009 Workshop Manual page 584

2-502 Lubricating System JL4G18-D Engine
2.9.3.2 Engine Oil Pressure Sensor Plug
Control Principle
Engine oil pressure sensor plug is a pressure switch and is set
on the oil filter. When the engine oil pressure is below the
specified value, this switch is switched off and the engine oil
pressure warning lamp will be on. When the car starts normally,
the oil pump transfers the oil pressure to the system, so this
switch is switched off and the engine oil pressure warning lamp
will be off.
EC718/EC718RV EC715/EC715RV 10/2009