ADAPTIVE HIGH BEAM SYSTEM TERMINALS OF ECU


  1. CHECK INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY AND MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

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  2. CHECK HEADLIGHT ECU SUB-ASSEMBLY LH

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  3. CHECK HEADLIGHT ECU SUB-ASSEMBLY RH

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  4. CHECK HEADLIGHT LIGHT CONTROL ECU SUB-ASSEMBLY

    B005L8KN03

    1. Measure the voltage, resistance and check for pulses according to the value(s) in the table below.

      Tech Tips

      Since the headlight control ECU sub-assembly is connected inside the headlight assembly, the voltage, resistance cannot be measured and pulses cannot be checked for directly. The values listed are for reference only.

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      K-1 - Body ground - Ground Always Below 1 Ω
      K-2 - K-20 - LED array output Engine switch off Below 1 V
      Engine switch on (IG) and high beams operated manually Pulse generation
      K-2 - K-20 - LED array output Engine switch off Below 1 V
      Engine switch on (IG) and high beams operated manually Pulse generation
      K-5 - K-6 - LED array fan power source Engine switch off Below 1 V
      Engine switch on (IG) and high beams operated manually 4.75 to 5.25 V
      K-7 - K-6 - LED array fan control signal Engine switch off Below 1 V
      Engine switch on (IG) and high beams operated manually Pulse generation
      K-9 - Body ground - LIN communication line Engine switch on (IG) Pulse generation
      K-10 - Body ground - Power source Engine switch off Below 1 V
      Engine switch on (IG) 11 to 14 V
      K-11 - K-20 - LED array output Engine switch off Below 1 V
      Engine switch on (IG) and high beams operated manually Pulse generation
      K-12 - K-20 - LED array output Engine switch off Below 1 V
      Engine switch on (IG) and high beams operated manually Pulse generation
      K-13 - K-20 - LED array output Engine switch off Below 1 V
      Engine switch on (IG) and high beams operated manually Pulse generation
      K-14 - K-20 - LED array output Engine switch off Below 1 V
      Engine switch on (IG) and high beams operated manually Pulse generation
      K-15 - K-20 - LED array output Engine switch off Below 1 V
      Engine switch on (IG) and high beams operated manually Pulse generation
      K-16 - K-20 - LED array output Engine switch off Below 1 V
      Engine switch on (IG) and high beams operated manually Pulse generation
      K-17 - K-20 - LED array output Engine switch off Below 1 V
      Engine switch on (IG) and high beams operated manually Pulse generation
      K-18 - K-20 - LED array output Engine switch off Below 1 V
      Engine switch on (IG) and high beams operated manually Pulse generation
      K-19 - K-20 - LED array output Engine switch off Below 1 V
      Engine switch on (IG) and high beams operated manually Pulse generation