EVAP Vacuum Switching Valve (All Models)

WARNING: This page does not describe the selected car, but rather 10 other vehicles, including the 2002 Toyota Tundra, 2002 Toyota Tacoma, 2002 Toyota Sienna, 2002 Toyota Sequoia, and 2002 Toyota Land Cruiser. However, it is still accessible from the selected car via links, so may be relevant.

Remove EVAP Vacuum Switching Valve (VSV). See Figure-Figure . See EVAP VSV LOCATIONS table.

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 With Black & Black/White Wires
Camry		Front VSV On Emission Control Valve Set On Top Of Engine, Near Intake Manifold & Contains Blue Or Black 2-Pin Electrical Connector With Light Green & Black/White Wires
Camry Solara		Front VSV On Emission Control Valve Set On Top Of Engine, Near Intake Manifold & Contains Blue 2-Pin Electrical Connector With Light Green & Black/Yellow Wires
Highlander		Front VSV On Emission Control Valve Set On Top Of Engine, Near Intake Manifold & Contains Blue 2-Pin Electrical Connector With Black/Red & Black/White Wires
Land Cruiser		At Driver's Side Center Of Intake Manifold Below Intake Manifold Cover & Contains Black 2-Pin Electrical Connector With Blue/Black & Black/Yellow Wires
Sequoia		At Driver's Side Center Of Intake Manifold & Contains Black 2-Pin Electrical Connector With Green/Red & White/Green Wires
Sienna		Front VSV On Emission Control Valve Set On Top Of Engine, Near Intake Manifold & Contains Blue 2-Pin Electrical Connector With Light Green & Black/Yellow Wires
Tacoma		On Bracket Bolted To Inside Of Driver's Side Front Fender Panel & Contains Black 2-Pin Electrical Connector With White/Red & White/Green Wires
Tundra
3.4L V6		At Driver's Side Rear Corner Of Air Intake Chamber & Contains Black 2-Pin Electrical Connector With White/Blue & White/Green Wires
4.7L V8		At Driver's Side Center Of Intake Manifold & Contains Black 2-Pin Electrical Connector With Red & White/Green Wires
4Runner		On Bracket Bolted To Inside Of Driver's Side Front Fender Panel & Contains Black 2-Pin Electrical Connector With White/Blue & White/Green Wires

Using ohmmeter, ensure continuity exists between electrical terminals on EVAP VSV and that resistance is within specification. See EVAP VSV RESISTANCE table. Replace EVAP VSV if no continuity exists or resistance is not within specification.

EVAP VSV RESISTANCE

Application		Ohms @ 68°F (20°C)
Avalon, Camry, Camry Solara, Highlander & Sienna		27-33
Land Cruiser, Sequoia & Tacoma		30-34
Tundra
3.4L V6		29-33
4.7L V8		30-34
4Runner		30-34

Using ohmmeter, 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.
To test EVAP VSV operation, apply air pressure to port "E". Ensure air does not flow from port "F". Perform STEP 1 in illustration. See Fig 1-Fig 3 .
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 in illustration. See Fig 1-Fig 3 . Replace EVAP VSV if defective.

Fig 1: Testing Typical EVAP Vacuum Switching Valve (Avalon, Camry, Camry Solara, Highlander, Sienna & Tundra 3.4L V6)
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Fig 2: Testing EVAP Vacuum Switching Valve (Land Cruiser, Sequoia & Tundra 4.7L V8)
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Fig 3: Testing EVAP Vacuum Switching Valve (Tacoma & 4Runner)
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002