LEMON Manuals: Even more car manuals for everyone
Home >> Lexus >> 2019 >> ES 350 Luxury >> Repair and Diagnosis >> External Pages >> Different car >> Section 241 (Engine Control System (A25A-FXS) - Diagnostic Codes (10 Of 20)) >> SFI System >> DTC P0443-13: Evaporative Emission System Purge Control Valve "A" Circuit Open [08/2021 - ] >> Procedure

DTC P0443-13: Evaporative Emission System Purge Control Valve "A" Circuit Open [08/2021 - ]: Procedure

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2024 Lexus ES 300h, 2023 Lexus ES 300h, 2022 Lexus ES 300h, 2021 Lexus ES 300h, and 2020 Lexus ES 300h. However, it is still accessible from the selected car via links, so may be relevant.
  1. PERFORM ACTIVE TEST USING GTS (ACTIVATE THE EVAP PURGE VSV) 
    GTY572808Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    *a VSV is on
    *b VSV is off
    1. Connect the GTS to the DLC3.
    2. Disconnect the fuel vapor feed hose (on the canister side) from the purge VSV.
    3. Turn the power switch on (IG).
    4. Turn the GTS on.
    5. Put the engine in Inspection Mode (Maintenance Mode).

      Powertrain > Hybrid Control > Utility 

      Tester Display
      Inspection Mode
    6. Start the engine.
    7. Enter the following menus: Powertrain / Engine / Active Test / Activate the EVAP Purge VSV.

      Powertrain > Engine > Active Test 

      Tester Display
      Activate the EVAP Purge VSV
    8. When the purge VSV is operated using the GTS, check whether the port of the purge VSV applies suction to your finger.

      OK

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

      HINT: 

      Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    CHECK FOR INTERMITTENT PROBLEMS. Refer to  CHECK FOR INTERMITTENT PROBLEMS [06/2018 - ] 

    Result: 

    NG 

    See step  2

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

      Refer to INSPECTION [06/2018 - ]

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPLACE PURGE VSV. Refer to  REMOVAL [06/2018 - ] 

    Result: 

    OK 

    See step  3

  3. CHECK TERMINAL VOLTAGE (POWER SOURCE OF PURGE VSV) 
    GTY744265Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    *a Front view of wire harness connector
    (to Purge VSV)
    1. Disconnect the purge VSV connector.
    2. Turn the power switch on (IG).
    3. Measure the voltage according to the value(s) in the table below.

      Standard Voltage

      Tester Connection Condition Specified Condition
      C32-1 (+B) - Body ground Power switch on (IG) 11 to 14 V

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR (EFI-MAIN NO. 1 RELAY - PURGE VSV) 

    Result: 

    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
      C32-2 (EVP1) - C100-66 (PRG) Always Below 1 Ω
      C32-2 (EVP1) or C100-66 (PRG) - Body ground and other terminals Always 10 kΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE ECM. Refer to  REMOVAL [08/2021 - 09/2022]  , or refer to  REMOVAL [09/2022 - ] 

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

scientia non olet · About LEMON Manuals