Prius L4-1.5L (1NZ-FXE) (Hybrid) (2003)
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.