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Inspection Procedure

  1. INSPECT HEIGHT CONTROL SENSOR SUB-ASSEMBLY REAR RH 
    1. Connect 3 dry cell batteries (1.5 V) in a series.
    2. Connect the positive (+) lead from the battery to terminal 1 and negative (-) lead from the battery to terminal 3.
    3. Measure voltage between terminal 2 and terminal 3 when slowly move the link up and down.
    Fig 1: Inspecting Height Control Sensor Sub-Assembly Rear RH
    G05273763Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    Voltage 

    VOLTAGE REFERENCE CHART

    Link Angle Standard voltage
    +45° (High) 4.5 V
    0° (Normal) 2.5 V
    -45° (Low) 0.5 V

    NG: REPLACE HEIGHT CONTROL SENSOR SUB-ASSEMBLY REAR RH 

    OK: Go to next step 

  2. CHECK HARNESS AND CONNECTOR (HEIGHT CONTROL SENSOR REAR RH - LEVEL CONTROL ECU) 
    1. Disconnect the H26 connector of height control sensor sub-assembly and the H17 connector of headlight leveling ECU assembly.
    2. Measure the resistance according to the value(s) in the table below.
    Fig 2: Disconnecting H26 Connector And H17 Connector Of Headlight Leveling ECU Assembly
    G05273878Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    Resistance 

    TESTER CONNECTION SPECIFIED CONDITION REFERENCE CHART

    Tester connection Condition Specified condition
    H17-16 (SGR) - H26-1 (SHG) Always Below 1 Ω
    H17-18 (SHR) - H26-2 (SHRR) Always Below 1 Ω
    H17-20 (SBR) - H26-3 (SHB) Always Below 1 Ω
    H26-1 (SHG) - Body ground Always 10 kΩ or higher
    H26-2 (SHRR) - Body ground Always 10 kΩ or higher
    H26-3 (SHB) - Body ground Always 10 kΩ or higher

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

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

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