ADAPTIVE HIGH BEAM SYSTEM TERMINALS OF ECU


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

  2. CHECK HEADLIGHT ECU SUB-ASSEMBLY LH Click here

  3. CHECK HEADLIGHT ECU SUB-ASSEMBLY RH Click here

  4. CHECK HEADLIGHT LIGHT CONTROL ECU SUB-ASSEMBLY

    A01WURKE02

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

      Tech Tips

      Since the headlight light control ECU sub-assembly is connected to a connector inside the headlight assembly, the voltage, resistance and pulse cannot be checked directly. The voltage, resistance and pulse listed are for reference only.

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      K-1 (LG) - Body ground - Ground Always Below 1 Ω
      K-2 (AR01) - K-20 (AR12) - LED array output Engine switch off Below 1 V
      Engine switch on (IG) and high beam headlights illuminated by manual operation Pulse generation
      K-2 (AR02) - K-20 (AR12) - LED array output Engine switch off Below 1 V
      Engine switch on (IG) and high beam headlights illuminated by manual operation Pulse generation
      K-5 (FH) - K-6 (FL) - LED array fan power source Engine switch off Below 1 V
      Engine switch on (IG) and high beam headlights illuminated by manual operation 4.75 to 5.25 V
      K-7 (FG) - K-6 (FL) - LED array fan control signal Engine switch off Below 1 V
      Engine switch on (IG) and high beam headlights illuminated by manual operation Pulse generation
      K-9 (LIN) - Body ground - LIN communication Engine switch on (IG) Pulse generation
      K-10(LB) - Body ground - Power source Engine switch off Below 1 V
      Engine switch on (IG) 11 to 14 V
      K-11 (AR03) - K-20 (AR12) - LED array output Engine switch off Below 1 V
      Engine switch on (IG) and high beam headlights illuminated by manual operation Pulse generation
      K-12 (AR04) - K-20 (AR12) - LED array output Engine switch off Below 1 V
      Engine switch on (IG) and high beam headlights illuminated by manual operation Pulse generation
      K-13 (AR05) - K-20 (AR12) - LED array output Engine switch off Below 1 V
      Engine switch on (IG) and high beam headlights illuminated by manual operation Pulse generation
      K-14 (AR06) - K-20 (AR12) - LED array output Engine switch off Below 1 V
      Engine switch on (IG) and high beam headlights illuminated by manual operation Pulse generation
      K-15 (AR07) - K-20 (AR12) - LED array output Engine switch off Below 1 V
      Engine switch on (IG) and high beam headlights illuminated by manual operation Pulse generation
      K-16 (AR08) - K-20 (AR12) - LED array output Engine switch off Below 1 V
      Engine switch on (IG) and high beam headlights illuminated by manual operation Pulse generation
      K-17 (AR09) - K-20 (AR12) - LED array output Engine switch off Below 1 V
      Engine switch on (IG) and high beam headlights illuminated by manual operation Pulse generation
      K-18 (AR10) - K-20 (AR12) - LED array output Engine switch off Below 1 V
      Engine switch on (IG) and high beam headlights illuminated by manual operation Pulse generation
      K-19 (AR11) - K-20 (AR12) - LED array output Engine switch off Below 1 V
      Engine switch on (IG) and high beam headlights illuminated by manual operation Pulse generation