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Home >> Lexus >> 2007 >> GX 470 >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transaxle >> Automatic Transmission System >> DTC P2772: Transfer "L4" Switch Circuit >> Inspection Procedure

Inspection Procedure

  1. CHECK HARNESS AND CONNECTOR (TRANSFER INDICATOR SWITCH - BODY GROUND) 
    Fig 1: Identifying D1 Connector Terminals
    G05261290Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the transfer indicator switch No. 1 connector.
    2. Measure the resistance according to the value (s) in the table below.

    Standard resistance 

    TESTER CONNECTION SPECIFIED CONDITION TABLE

    Tester Connection Specified Condition
    2 - Body ground Below 1 Ω

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: Go to Next Step 

  2. INSPECT TRANSFER INDICATOR SWITCH NO. 1 (L4 POSITION SWITCH) 
    Fig 2: Identifying Transfer Indicator Switch No. 1 (L4 Position Switch)
    G05261251Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Remove the transfer indicator switch No. 1.
    2. Measure the resistance according to the value (s) in the table below.

    Standard resistance 

    TESTER CONNECTION SPECIFIED CONDITION TABLE

    Switch Position Tester Connection Specified Condition
    Free 1 - 2 10 kΩ or higher
    Pushed in ↑ Below 1 Ω

    NG: REPLACE TRANSFER INDICATOR SWITCH NO. 1 

    OK: Go to Next Step 

  3. CHECK HARNESS AND CONNECTOR (TRANSFER INDICATOR SWITCH - ECM) 
    Fig 3: Identifying Harness & Connector (Transfer Indicator Switch - ECM)
    G05261292Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the connector from the ECM.
    2. Measure the resistance according to the value (s) in the table below.

      Standard resistance (Check for open) 

      TESTER CONNECTION SPECIFIED CONDITION TABLE

      Tester Connection Specified Condition
      E7-13 (L4) - D1-1 (L4) Below 1 Ω
    3. Measure the resistance according to the value (s) in the table below.

    Standard resistance (check for short) 

    TESTER CONNECTION SPECIFIED CONDITION TABLE

    Tester Connection Specified Condition
    E7-13 (L4) - Body ground 10 kΩ or higher

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: REPLACE ECM