toyota Workshop Repair Guides

Toyota Workshop Service and Repair Manuals

Catalytic Converter Bypass Valve Vacuum Switch|Locations|Page 1571 > < Catalytic Converter Bypass Valve Vacuum Switch|Locations
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Catalytic Converter Bypass Valve Vacuum Switch: Testing and Inspection

VSV FOR HC ABSORBER AND CATALYST SYSTEM (HCAC) 

1. REMOVE VSV

2. INSPECT VSV

Using an ohmmeter, check that there is continuity between the terminals.

Resistance:  33 - 39 Ohm at 20 °C (68 °F)

If there is no continuity, replace the VSV.

3. INSPECT VSV FOR GROUND

Using an ohmmeter, check that there is no continuity between the each terminal and the body.

If there is continuity, replace the VSV.

4. INSPECT VSV OPERATION

a. Check that air flows from port E to the filter.

Catalytic Converter Bypass Valve Vacuum Switch|Locations|Page 1571 > < Catalytic Converter Bypass Valve Vacuum Switch|Locations