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.
Schematic Diagram
Oil Specification 1. The HFC-134a system requires synthetic (PAG) compressor oil whereas the R-12 system requires mineral compressor oil. The two oils must never be mixed. 2. Compressor (PAG) oil varies according to compressor model. Be sure to use oil specified for the compressor model.
Inspection 1. Turn the ignition switch OFF. 2. Disconnect the auto defogging connector. 3. Verify that the auto defogging actuator operates to the open position when connecting 12V to terminal 3 and grounding terminal 4. Verify that the auto defogging actuator operates to the close position when connected in reverse.