| Operation Principle |

Inspection 1. After disconnecting the vapor hose from the PCV valve, remove the PCV valve. 2. Reconnect the PCV valve to the vapor hose. 3.
Removal 1. Disconnect the vapor hose (A). 2. Remove the rubber pad (B), and then remove the PCV valve. Inspection 1. Insert a thin stick (A) into the PCV valve (B) of the threaded side to check that the plunger moves.
Removal 1. If the compressor is marginally operable, run the engine at idle speed, and let the air conditioning work for a few minutes, then shut the engine off. 2. Disconnect the negative (-) battery terminal. 3. Remove the engine room cover.
Description This system maintains the density of carbon dioxide constantly in vehicle interior by measuring the amount of carbon dioxide to increase the comfortableness and the fuel consumption rate when air conditioning system is operating.