EVAP Vacuum Switching Valve
- Remove EVAP Vacuum Switching Valve (VSV). See EVAP VSV LOCATIONS table. See Figure.EVAP VSV LOCATIONS
Application Location Previa Bolted To Mounting Bracket On Charcoal Canister NOTE: EVAP VSV may also be identified by wire colors. See appropriate wiring diagram in WIRING DIAGRAMS article. - Using ohmmeter, ensure continuity exists between electrical terminals on EVAP VSV and resistance is 30-34 ohms at 68°F (20°C). Ensure no continuity exists between each electrical terminal and the body of the EVAP VSV. Replace EVAP VSV if continuity exists between electrical terminal and body of EVAP VSV.
- Apply air pressure to port "E". Ensure air does not flow from port "F". Perform STEP 1. See Fig 1 and Fig 2.
- Apply battery voltage and ground to electrical terminals on EVAP VSV. Apply air pressure to port "E". Ensure air flows from port "F". Perform STEP 2. See Fig 1 and Fig 2. Replace EVAP VSV if defective.