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Home >> Toyota >> 2016 >> Highlander XLE, AWD >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> SFI System [2GR-FE] - Diagnostic Codes - (Except Hybrid) (2 Of 5) >> SFI System >> DTC P0443: Evaporative Emission Control System Purge Control Valve Circuit [12/2013 - 11/2016] >> Procedure

DTC P0443: Evaporative Emission Control System Purge Control Valve Circuit [12/2013 - 11/2016]: Procedure

  1. PERFORM ACTIVE TEST USING TECHSTREAM (ACTIVATE THE VSV FOR EVAP CONTROL) 
    GTY445252Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    *1 Purge VSV
    *2 Fuel Vapor Feed Hose Assembly (to Canister)
    1. Disconnect the fuel vapor feed hose assembly (charcoal canister side) of the purge VSV.
    2. Connect the Techstream to the DLC3.
    3. Start the engine.
    4. Turn the Techstream on.
    5. Enter the following menus: Powertrain / Engine / Active Test / Activate the VSV for Evap Control.

      Powertrain > Engine > Active Test 

      Tester Display
      Activate the VSV for Evap Control
    6. When the purge VSV is operated using the Techstream, check whether the port of the purge VSV applies suction your finger.

      OK

      Techstream Operation Specified Condition
      ON Purge VSV port applies suction to finger
      OFF Purge VSV port applies no suction to finger

      Result

      Proceed to
      OK
      NG

    Result:  2

    OK 

    CHECK FOR INTERMITTENT PROBLEMS. Refer to  CHECK FOR INTERMITTENT PROBLEMS [12/2013 - 11/2016] 

    Result:  1

    NG 

    See step  2

  2. INSPECT PURGE VSV 
    1. Inspect the purge VSV.

      Refer to INSPECTION [12/2013 - 11/2016]

      Result

      Proceed to
      OK
      NG

    Result:  2

    NG 

    REPLACE PURGE VSV. Refer to  REMOVAL [12/2013 - 11/2016] 

    Result:  1

    OK 

    See step  3

  3. CHECK TERMINAL VOLTAGE (POWER SOURCE OF PURGE VSV) 
    GTY450390Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    *a Front view of wire harness connector
    (to Purge VSV)
    1. Disconnect the purge VSV connector.
    2. Turn the ignition switch to ON.
    3. Measure the voltage according to the value(s) in the table below.

      Standard Voltage

      Tester Connection Condition Specified Condition
      C11-1 - Body ground Ignition switch ON 11 to 14 V

      Result

      Proceed to
      OK
      NG

    Result:  2

    NG 

    See step  5

    Result:  1

    OK 

    See step  4

  4. CHECK HARNESS AND CONNECTOR (PURGE VSV - ECM) 
    1. Disconnect the purge VSV connector.
    2. Disconnect the ECM connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      C11-2 - C1-48 (PRG) Always Below 1 Ω
      C11-2 or C1-48 (PRG) - Body ground Always 10 kΩ or higher

      Result

      Proceed to
      OK
      NG

    Result:  1

    OK 

    REPLACE ECM. Refer to  REMOVAL [12/2013 - 11/2016] 

    Result:  2

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

  5. CHECK HARNESS AND CONNECTOR (PURGE VSV - SEMICONDUCTOR PWR INTEGRATION ECU) 
    1. Disconnect the purge VSV connector.
    2. Disconnect the semiconductor pwr integration ECU connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      C11-1 - 1G-7 Always Below 1 Ω
      C11-1 or 1G-7 - Body ground Always 10 kΩ or higher

      Result

      Proceed to
      OK
      NG

    Result:  1

    OK 

    REPLACE SEMICONDUCTOR PWR INTEGRATION ECU. Refer to  REMOVAL [12/2013 - ] 

    Result:  2

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

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