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Combination Meter: Inspection

  1. LIGHT CONTROL RHEOSTAT 
    1. Inspect continuity.
      1. Check the continuity between the light control rheostat connector terminals when operating the rheostat volume knob.

      Standard: 

      SWITCH RESISTANCE SPECIFICATION

      Switch Tester connection (Symbol) Condition
      Turn the knob to maximum 1 (TC) - 4 (T) Below 1 Ω
      Conditions other than the above 1 (TC) - 4 (T) 10 kΩ or higher
      Fig 1: Identifying Connector Terminals
      G02595365Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Check the resistance between terminal 3 (RV) and terminal 4 (T) when operating the light control rheostat volume knob. Also, check that the resistance changes continuously.

      Standard: 

      Turn the knob to maximum: Approx. 10 kΩ 

      Turn the knob to minimum: Approx. 0 kΩ 

      Fig 2: Identifying Resistance Graph
      G02595366Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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