Pressure Switching Valve Vacuum Switching Valve (Avalon, Camry, Camry Solara, Highlander, Sequoia, Sienna, Tacoma & 4Runner)
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- Remove pressure switching valve Vacuum Switching Valve (VSV). See PRESSURE SWITCHING VALVE VSV LOCATION table. See Figure-Figure
.PRESSURE SWITCHING VALVE VSV LOCATION
Application Location Avalon On Bracket At Charcoal Canister Near Fuel Tank & Contains Blue 2-Pin Electrical Connector With Pink/Black & Black/White Wires Camry On Bracket At Charcoal Canister Near Fuel Tank & Contains Blue 2-Pin Electrical Connector With Violet & Black/Red Wires Camry Solara On Bracket At Charcoal Canister Near Fuel Tank & Contains Blue 2-Pin Electrical Connector With White/Red & Red Wires Highlander On Bracket At Charcoal Canister Behind Fuel Tank & Contains Blue 2-Pin Electrical Connector With Green/Yellow & White Wires Sequoia On Bracket At Charcoal Canister Near Fuel Tank & Contains Blue 2-Pin Electrical Connector With Pink/Blue & Green/Red Wires Sienna On Bracket At Charcoal Canister Near Fuel Tank & Contains Dark Gray 2-Pin Electrical Connector With Black/Red & White/Red Wires Tacoma On Bracket At Charcoal Canister Near Fuel Tank & Contains Blue 2-Pin Electrical Connector With Green/Black & White/Red Wires 4Runner On Bracket At Charcoal Canister Near Fuel Tank & Contains Blue 2-Pin Electrical Connector With Red/Yellow & White/Blue Wires - Using ohmmeter, ensure continuity exists between electrical terminals on pressure switching valve VSV and that resistance is within specification. See PRESSURE SWITCHING VALVE VSV RESISTANCE table. Replace pressure switching valve VSV if no continuity exists or resistance is not within specification.PRESSURE SWITCHING VALVE VSV RESISTANCE
Application Ohms @ 68°F (20°C) Avalon, Camry & Camry Solara (1) Highlander 30-36 Sequoia 37-44 Sienna (1) Tacoma 30-36 4Runner (1) (1) Resistance should be 37-44 ohms at 68°F (20°C) and 51-62 ohms at 248 °F (120°C). - Ensure no continuity exists between each electrical terminal and body of pressure switching valve VSV. Replace pressure switching valve VSV if continuity exists between electrical terminal and body of pressure switching valve VSV.
- To test pressure switching valve VSV operation, apply air pressure to port "E". Ensure air does not flow from port "F". Perform STEP 1 in illustration. See Fig 1 and Fig 2 .
- Apply battery voltage and ground to electrical terminals on pressure switching valve VSV. Apply air pressure to port "E". Ensure air flows from port "F". Perform STEP 2 in illustration. See Fig 1 and Fig 2 . Replace pressure switching valve VSV if defective.