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Home >> Toyota >> 2001 >> Sienna CE >> Repair and Diagnosis >> External Pages >> Different car >> Section 28 (Engine Controls - System & Component Testing - V6 & V8) >> Emission Systems & Sub-Systems >> Fuel Evaporative System >> Canister Closed Valve Vacuum Switching Valve (Avalon, Camry, Camry Solara, Highlander, Sequoia, Sienna, Tacoma & 4Runner)

Canister Closed Valve Vacuum Switching Valve (Avalon, Camry, Camry Solara, Highlander, Sequoia, Sienna, Tacoma & 4Runner)

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.
  1. Disconnect electrical connector at Canister Closed Valve Vacuum Switching Valve (CCV VSV). On Avalon, Camry, Camry Solara, Highlander, and Sienna, CCV VSV is located on air cleaner housing. See Figure-Figure . On Sequoia, CCV VSV is located on bracket at driver's side of engine compartment, just to the rear of fuse/relay box and contains a 2-pin electrical connector with White/Blue and Black/Red wires. See Figure. On Tacoma and 4Runner, CCV VSV is located in engine compartment, on bracket bolted to inside of driver's side front fender panel. See Figure and Figure .
  2. On all models, remove CCV VSV. Using ohmmeter, check that continuity exists between electrical terminals on CCV VSV and that resistance is within specification. See CCV VSV RESISTANCE  table. Replace CCV VSV if no continuity exists or resistance is not within specification.
    CCV VSV RESISTANCE

    Application Ohms @ 68°F (20°C)
    Avalon (1)
    Camry 25-30
    Camry Solara (1)
    Highlander 24-30
    Sequoia 25-30
    Sienna, Tacoma & 4Runner (1)
    (1) Resistance should be 25-30 ohms at 68°F (20°C) and 33-42 ohms at 248 °F (120°C).
  3. Ensure no continuity exists between each electrical terminal and body of CCV VSV. Replace CCV VSV if continuity exists between electrical terminal and body of CCV VSV.
  4. To test CCV VSV operation, apply air pressure to port "A". Ensure air flows from port "B". Perform STEP 1 in illustration. See Fig 1-Fig 4 .
  5. Apply battery voltage and ground to electrical terminals on CCV VSV. Apply air pressure to port "A". Ensure air does not flow from port "B". Perform STEP 2 in illustration. See Fig 1-Fig 4 . Replace CCV VSV if defective.
    Fig 1: Testing CCV Vacuum Switching Valve (Avalon, Camry, Highlander & Sienna)
    G99C54785Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    Fig 2: Testing CCV Vacuum Switching Valve (Camry Solara)
    G00023059Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    Fig 3: Testing CCV Vacuum Switching Valve (Sequoia)
    G00011354Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    Fig 4: Testing CCV Vacuum Switching Valve (Tacoma & 4Runner)
    G00011358Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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