Purpose, Function
Releases evaporative gas from the fuel tank if there is a malfunction in the evaporative gas passage between the fuel tank and the intake manifold. As a result, deformation of the fuel tank caused by evaporative gas pressure is prevented.
Construction
The fuel-filler cap is installed to the fuel filler opening.

The fuel-filler cap consists of a valves, retainer, and springs.

Operation
When there is positive pressure in the fuel tank due to evaporative gas, evaporative gas is released into the atmosphere. When there is negative pressure, air is introduced to the fuel tank.

Fuel Filler Cap Inspection
Fuel Filler Lid AdjustmentSas Control Module Removal/Installation [Standard Deployment Control System]
WARNING:
Handling the SAS control module or air bag module improperly can accidentally
deploy the air bag modules and pre-tensioner seat belts, which may seriously
injure you. Read the air bag system service warnings and cautions before handling
the air bag module..
If the c ...
Presilencer
Purpose, Function
Reduces the exhaust noise.
Construction
The presilencer is installed to the rear of the TWC.
2WD
AWD
The presilencer consists of the filters, stuffing and wool-stainless.
2WD
AWD
...
Awd Warning Light
Purpose, Function
Warns the driver of a AWD system malfunction.
Construction
The AWD warning light is built into the instrument cluster.
Operation
If the self-diagnostic function stores a DTC, the warning light illuminates
to alert the driver of the malfunct ...