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Combination Meter: Inspection

  1. LIGHT CONTROL RHEOSTAT ASSY 
    1. Check the continuity of light control rheostat when the light control rheostat operates as shown in LIGHT CONTROL RHEOSTAT ASSY .

      Standard: 

      LIGHT CONTROL RHEOSTAT ASSY

      Terminal (Symbol) Condition Specified condition
      1 (T) - Body ground Ignition switch ON, Tail-light switch OFF -> ON Below 1 V- 10 to 14 V
      2 (IG) - Body ground Ignition switch OFF -> ON Below 1 V- 10 to 14 V
      5 (E) - Body ground Always Below 1 Ω
      Fig 1: Inspecting Light Control Rheostat Assy
      G02968484Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Check resistance.
      1. Check the resistance between terminal 4 (RV) and terminal 3 (T) when operating the light control rheostat volume knob. Also, check that the resistance changes continuously.

        Standard resistance: 

        • Turn the knob to maximum: Approx. 10 k Ω 
        • Turn the knob to minimum: Approx. 0 k Ω 
        Fig 2: Checking Resistance Of Light Control Rheostat Assy
        G02968485Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002