| Operation |
| Normal status | Full fuel | Vehicle Rollover / steep |
| Valve open | Valve close | Valve close |
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Removal 1. Turn the ignition switch OFF and disconnect the negative (-) battery cable. 2. Disconnect the ventilation hose (A) from the fuel tank air filter.
Removal 1. Turn the ignition switch OFF, and then remove battery (-) cable. 2. Remove the fuel tank. (Refer to Fuel System - "Fuel Tank") 3.
Replacement 1. Disconnect the negative (-) battery terminal. 2. Remove the heater and blower unit.(Refer to HA group – heater unit). 3. Remove the blower unit (A) from the heater unit after loosening a mounting bolt and 3 screws. Make sure that there is no air leaking out of the blower and duct joints.
Inspection 1. Ignition "OFF". 2. Disconnect the intake actuator connector. 3. Verify that the actuator operates to the recirculation position when connecting 12V to the terminal 3 and grounding terminal 7. 4. Verify that the intake actuator operates to the fresh position when connecting in the reverse.