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Home >> Lexus >> 2007 >> GX 470 >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transaxle >> Automatic Transmission System >> DTC P0818: Driveline Disconnect Switch Input Circuit >> Inspection Procedure

Inspection Procedure

  1. CHECK HARNESS AND CONNECTOR (TRANSFER INDICATOR SWITCH - BODY GROUND) 
    1. Disconnect the transfer indicator switch No. 2 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
    Fig 1: Identifying D2 Connector Terminals
    G05261250Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: Go to Next Step 

  2. INSPECT TRANSFER INDICATOR SWITCH NO. 2 
    Fig 2: Identifying Transfer Indicator Switch No. 2
    G05261251Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Remove the transfer indicator switch No. 2.
    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: REPAIR OR REPLACE TRANSFER INDICATOR SWITCH NO. 2 (TRANSFER NEUTRAL POSITION SWITCH) 

    OK: Go to Next Step 

  3. CHECK HARNESS AND CONNECTOR (TRANSFER INDICATOR SWITCH - ECM) 
    Fig 3: Identifying Harness & Connector (Transfer Indicator Switch - ECM)
    G05261252Courtesy 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
      E6-25 (TFN) - D2-1 (TFN) 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
    E6-25 (TFN) - Body ground 10 kΩ or higher

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: REPLACE ECM