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Interior Light Circuit: Procedure

  1. PERFORM ACTIVE TEST USING TECHSTREAM 
    1. Connect Techstream to the DLC3.
    2. Turn the ignition switch on (IG).
    3. Turn Techstream on.
    4. Select the following menu items: Body Electrical / Main Body / Active Test.
    5. Check the operation.
      MAIN BODY:

      Tester Display Test Part Control Range Diagnostic Note
      Illuminated Entry System Interior light and ignition key cylinder light ON / OFF (Interior light switch in DOOR position and all doors are closed). ON/OFF -

      OK

      Each light fades in.

    OK → PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE  PROBLEM SYMPTOMS TABLE 

    NG: Go to next step 

  2. CHECK VEHICLE CONDITION 
    1. Check the vehicle condition.

      Result

      Condition Proceed to
      without Sliding Roof A
      with Sliding Roof B

    B → See step   4 

    A: Go to next step 

  3. CHECK HARNESS AND CONNECTOR (LIGHT - BATTERY AND INSTRUMENT PANEL J/B ASSEMBLY) 
    1. Disconnect the E25 transponder key amplifier connector (*1).
      Fig 1: Checking Harness And Connector (Light - Battery And Instrument Panel J/B Assembly)
      GTY206506Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Disconnect the Q9 rear room light assembly connector.
    3. Disconnect the IR and II instrument panel J/B assembly connectors.
    4. Measure the voltage and resistance according to the value(s) in the table below.

      Standard voltage

      Tester Connection Condition Specified Condition
      E25-2 - Body ground (*1) Always 10 to 14 V
      Q9-1 - Body ground Always 10 to 14 V

      Standard resistance

      Tester Connection Condition Specified Condition
      II-10 - E25-6 (*1) Always Below 1 Ω
      IR-5 - Q9-2 Always Below 1 Ω
      II-10 - Body ground Always 10 kΩ or higher
      IR-5 - Body ground Always 10 kΩ or higher

      HINT: 

      *1: without Smart Key System

    NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK → REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY 

  4. CHECK HARNESS AND CONNECTOR (LIGHT - BATTERY AND INSTRUMENT PANEL J/B ASSEMBLY) 
    1. Disconnect the E25 transponder key amplifier connector (*1).
      Fig 2: Checking Harness And Connector (Light - Battery And Instrument Panel J/B Assembly)
      GTY206507Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Disconnect the Q6 overhead J/B connector.
    3. Disconnect the IR and II instrument panel J/B assembly connectors.
    4. Measure the voltage and resistance according to the value(s) in the table below.

      Standard voltage

      Tester Connection Condition Specified Condition
      E25-2 - Body ground (*1) Always 10 to 14 V
      Q6-7 - Body ground Always 10 to 14 V

      Standard resistance

      Tester Connection Condition Specified Condition
      II-10 - E25-6 (*1) Always Below 1 Ω
      IR-5 - Q6-6 Always Below 1 Ω
      II-10 - Body ground Always 10 kΩ or higher
      IR-5 - Body ground Always 10 kΩ or higher

      HINT: 

      *1: without Smart Key System

    NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK → REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY 

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