ADAPTIVE HIGH BEAM SYSTEM Adaptive High Beam Switch Circuit

DESCRIPTION

The No. 1 headlight ECU sub-assembly LH detects adaptive high beam switch (No. 2 combination switch assembly) signals. The adaptive high beam system can be turned on and off by operating the adaptive high beam switch (No. 2 combination switch assembly).

WIRING DIAGRAM

A003OSPE37
*1 AZSW
*2 Adaptive High Beam Switch (No. 2 Combination Switch Assembly)
*3 No. 1 Headlight ECU Sub-assembly LH

CAUTION / NOTICE / HINT

Note

If the No. 1 headlight ECU sub-assembly LH has been replaced, it is necessary to synchronize the vehicle information and initialize the No. 1 headlight ECU sub-assembly LH.

Click here

PROCEDURE


  1. READ VALUE USING GTS


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Turn the GTS on.

    4. Enter the following menus: Body Electrical / AHS / Data List.

    5. Read the Data List according to the display on the GTS.


      Body Electrical > AHS > Data List
      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      AHS Switch Adaptive high beam switch (No. 2 combination switch assembly) signal OFF or ON

      OFF: Adaptive high beam switch (No. 2 combination switch assembly) is not operated

      ON: Adaptive high beam switch (No. 2 combination switch assembly) is operated

      		 -

      Body Electrical > AHS > Data List
      Tester Display
      AHS Switch
      OK
      Normal conditions listed above are displayed.
      Result
      Proceed to
      OK
      NG

    OK

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Click here

    NG

  2. INSPECT ADAPTIVE HIGH BEAM SWITCH (NO. 2 COMBINATION SWITCH ASSEMBLY)


    1. Remove the adaptive high beam switch (No. 2 combination switch assembly).

      Click here

    2. Inspect the adaptive high beam switch (No. 2 combination switch assembly).

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE ADAPTIVE HIGH BEAM SWITCH (NO. 2 COMBINATION SWITCH ASSEMBLY) Click here

    OK

  3. CHECK HARNESS AND CONNECTOR (ADAPTIVE HIGH BEAM SWITCH (NO. 2 COMBINATION SWITCH ASSEMBLY) - NO. 1 HEADLIGHT ECU SUB-ASSEMBLY LH AND BODY GROUND)


    1. Disconnect the A15 No. 1 headlight ECU sub-assembly LH connector.

    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      I52-9 (+B) - A15-6 (AZSW) Always Below 1 Ω
      I52-9 (+B) or A15-6 (AZSW) - Body ground Always 10 kΩ or higher
      I52-8 (E) - Body ground Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE NO. 1 HEADLIGHT ECU SUB-ASSEMBLY LH Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR