Purpose/Function
Supplies power to each part.
Supplies battery voltage to each part based on the signals from the PCM even though the ignition is switched on or off.
Construction
Installed to the relay and fuse block.

Operation
After the contact point is on battery voltage is supplied to the coil based on the signals from the PCM.

Fail-safe
Function not equipped.
Main Fuse Removal/Installation
Relay InspectionBrake Fluid Level Sensor Inspection
1. Disconnect the brake fluid level sensor connector from the master cylinder.
2. Inspect for continuity according to fluid level between the brake fluid level
sensor terminals.
If not as indicated in the table, replace the reserve tank..
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Fresh Air Duct
Purpose, Function
Conducts fresh air from outside the engine compartment.
Increases air density by taking fresh air, which is cooler than the engine
compartment, to enhance the charging efficiency, ensuring the combustion stability.
Construction
The fresh-air duct is i ...
Positive Crankcase Ventilation (PCV) Valve
Purpose, Function
Prevents release of blow-by gas (unburnt gas) into the atmosphere.
The PCV valve is open/closed by the intake manifold vacuum.
Construction
The PCV valve is installed to the oil separator.
The PCV valve consists of a spring and valve.
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