EVAP Vacuum Switching Valve
- Remove EVAP Vacuum Switching Valve (VSV). See EVAP VSV LOCATIONS table. See Figure.EVAP VSV LOCATIONS
Application Location Avalon Front VSV On Emission Control Valve Set On Top Of Engine, Near Intake Manifold & Contains Blue 2-Pin Electrical Connector 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 within specification. See EVAP VSV RESISTANCE SPECIFICATIONS table. Replace EVAP VSV if no continuity exists or resistance is not within specification.EVAP VSV RESISTANCE SPECIFICATIONS
Application Ohms @ 68°F (20°C) Avalon 27-33 - Ensure no continuity exists between each electrical terminal and body of EVAP VSV. Replace EVAP VSV if continuity exists between electrical terminal and body of EVAP VSV.
- Apply air pressure to port "E". Ensure no air flows from port "F". Perform STEP 1. See Fig 1.
- 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 2. Replace EVAP VSV if defective.