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Inspection Procedure

  1. READ VALUE OF INTELLIGENT TESTER 
    1. Connect the intelligent tester to the DLC3.
    2. Turn the ignition switch to the ON position and press the intelligent tester main switch ON.
    3. Select the items below in the DATA LIST, and read the displays on the intelligent tester.

    BODY 

    NORMAL CONDITION CHART

    Item Measurement Item/ Display (Range) Normal Condition Diagnostic Note
    ILLUMINATE RATE Illuminate rate/(0.8 ms to 22.0 ms) Value is output according to ambient light -

    NG: GO TO step   2 

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

  2. CHECK HARNESS AND CONNECTOR (MULTIPLEX NETWORK BODY ECU -AUTOMATIC LIGHT CONTROL SENSOR) 
    1. Disconnect the automatic light control sensor connector and multiplex network body ECU connector.
    2. Measure the resistance according to the value(s) in the table below.
    Fig 1: Disconnecting Automatic Light Control Sensor Connector And Body ECU Connector
    G05273740Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    Resistance 

    TESTER CONNECTION SPECIFIED CONDITION REFERENCE CHART

    Tester connection Condition Specified condition
    CLTE (A10-3) - CLTE (B4-4) Always Below 1 Ω
    CLTS (A10-5) - CLTS (B4-5) Always Below 1 Ω
    CLTB (A10-6) - CLTB (B4-6) Always Below 1 Ω
    CLTE (B4-4) - Body ground Always 10 kΩ or higher
    CLTS (B4-5) - Body ground Always 10 kΩ or higher
    CLTB (B4-6) - Body ground Always 10 kΩ or higher

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: Go to next step 

  3. INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY 
    1. Measure the voltage according to the value(s) in the table below.
    Fig 2: Identifying Multiplex Network Body ECU Connector Terminals
    G05273832Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    Voltage 

    TESTER CONNECTION SPECIFIED VOLTAGE REFERENCE CHART

    Tester connection Condition Specified voltage
    CLTE (B4-4) - CLTB (B4-6) Ignition switch OFF → ON Below 1 V → 10 to 14 V

    NG: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE 

    OK: REPLACE AUTOMATIC LIGHT CONTROL SENSOR 

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