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Inspection [11/2018 - ]: Procedure

  1. INSPECT LIGHT CONTROL RHEOSTAT 
    1. Measure the resistance according to the value(s) in the table below.
      GTY926743Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component without harness connected
      (Light Control Rheostat)

      Standard Resistance

      Tester Connection Condition Specified Condition
      4 (TR) - 2 (E) Light control rheostat knob fully downwards (MIN.) Below 50 Ω
      Light control rheostat knob between MIN. and MAX. The value changes gradually (Between 0 to 12 kΩ)
      Light control rheostat knob fully upwards (MAX.) 8 to 12 kΩ
      3 (TC) - 2 (E) Light control rheostat knob not fully upward Below 50 Ω
      Light control rheostat knob fully upwards (Tail cancel switch is on) 8 to 12 kΩ

      If the result is not as specified, replace the light control rheostat.

    2. Check the illumination.
      1. Apply auxiliary battery voltage to the light control rheostat and check that it illuminates.
        GTY840768Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        *a Component without harness connected
        (Light Control Rheostat)

        OK

        Measurement Condition Specified Condition
        Auxiliary battery positive (+) → Terminal 6 (ILL+)
        Auxiliary battery negative (-) → Terminal 1 (ILL-)
        Illuminates

        If the result is not as specified, replace the light control rheostat.