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Unit Inspection

WARNING: This page is about a different car, the 2014 Subaru BRZ. However, it is still accessible from the selected car via links, so may be relevant.
  1. Inspection of the headlight dimmer switch ASSY
    1. Measurement of the Resistance of the light control switch
      1. Check the resistance between the connector terminals.
        Fig 1: Identifying Headlight Dimmer Switch Connector Terminals
        G09492394Courtesy of SUBARU OF AMERICA, INC.
        Resistance

        Inspection terminals (Terminal symbol) Inspection conditions Standard value
        18 (T) - 12 (EL) Light control switch OFF 10 kΩ or more
        20 (H) - 12 (EL) 10 kΩ or more
        19 (A) - 12 (EL) [Preparatory Code #1] 10 kΩ or more
        18 (T) - 12 (EL) Light control switch TAIL Less than 1 Ω
        18 (T) - 12 (EL) Light control switch HEAD Less than 1 Ω
        20 (H) - 12 (EL) Less than 1 Ω
        19 (A) - 12 (EL) [Preparatory Code #1] Light control switch AUTO Less than 1 Ω
        *1: With light control system
    2. Measurement of the Resistance of the dimmer switch
      1. Check the resistance between the connector terminals.
        Resistance

        Inspection terminals (Terminal symbol) Inspection conditions Standard value
        11 (HU) - 12 (EL) Dimmer switch FLASH Less than 1 Ω
        17 (HF) - 12 (EL) Less than 1 Ω
        11 (HU) - 12 (EL) Dimmer switch HI BEAM Less than 1 Ω
        NOTE: "HI BEAM" inspection is performed when the light control switch is in the "HEAD" position.
    3. Measurement of the Resistance of the turn signal switch
      1. Check the resistance between the connector terminals.
        Resistance

        Inspection terminals (Terminal symbol) Inspection conditions Standard value
        13 (TR) - 12 (EL) Turn signal switch OFF 10 kΩ or more
        15 (TL) - 12 (EL) 10 kΩ or more
        13 (TR) - 12 (EL) Turn signal switch (TURN R) ON Less than 1 Ω
        15 (TL) - 12 (EL) Turn signal switch (TURN L) ON Less than 1 Ω
    4. Measurement of the Resistance of the fog light switch
      1. Check the resistance between the connector terminals.
        Resistance

        Inspection terminals (Terminal symbol) Inspection conditions Standard value
        4 (BFG) - 3 (LFG) [Preparatory Code #1] Fog light switch OFF 10 kΩ or more
        4 (BFG) - 3 (LFG) [Preparatory Code #1] Fog light switch Fr Less than 1 Ω
        *1: With front fog lights
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