AUTOMATIC HEADLIGHT BEAM LEVEL CONTROL SYSTEM DATA LIST / ACTIVE TEST


  1. DATA LIST

    Tech Tips

    Using the Techstream to read the Data List allows the values or states of switches, sensors, actuator and other items to be read without removing any parts. This non-intrusive inspection can be very useful because intermittent conditions or signals may be discovered before parts or wiring is disturbed. Reading the Data List information early in troubleshooting is one way to save diagnostic time.

    Note

    In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not.


    1. Connect the Techstream to the DLC3.

    2. Turn the power switch on (IG).

    3. Turn the Techstream on.

    4. Enter the following menus: Body Electrical / HL Auto Leveling / Data List.

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

      HL Auto Leveling
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Headlight Low Beam State Low beam headlight state/ON or OFF

      ON: Low beam headlights on

      OFF: Low beam headlights off

      		 -
      +B IG power supply voltage value/0.00 to 19.75 V 11 to 14 V -
      Height Sens Pw Supply Val Height control sensor power supply value/0.00 to 5.00 V Approx. 5 V -
      Rr Height Sens Signal Val Rear height control sensor signal value/0.00 to 5.00 V Approx. 2.5 V (When vehicle is level) Value changes according to vehicle height
      Vehicle Speed Vehicle speed/0.00 to 327.67 km/h (203.61 mph) Condition can be displayed -
      Rear Height Adjust Valid Flag Rear height adjustment range/VALID or INVALID Condition can be displayed -
      Init Writing Count Number of times for initialization/0 to 255 Condition can be displayed -
      Sensor Initialization Hist Sensor Initialization History/not comp, 10%, 25%, 50%, 75%, 100% or complied Condition can be displayed -
      Number Of Trouble Codes Number of trouble codes/0 to 255 Condition can be displayed -

  2. ACTIVE TEST

    Tech Tips

    Using the Techstream to perform Active Tests allows relays, VSVs, actuators and other items to be operated without removing any parts. This non-intrusive functional inspection can be very useful because intermittent operation may be discovered before parts or wiring is disturbed. Performing Active Tests early in troubleshooting is one way to save diagnostic time. Data List information can be displayed while performing Active Tests.


    1. Connect the Techstream to the DLC3.

    2. Turn the power switch on (IG).

    3. Turn the Techstream on.

    4. Enter the following menus: Body Electrical / HL Auto Leveling / Active Test.

    5. Perform the Active Test according to the display on the Techstream.

      HL Auto Leveling
      Tester Display Test Part Control Range Diagnostic Note
      Drive The Leveling Motor UP*1 Leveling motor upward operation ON/OFF

      ON: Moves up

      OFF: Stops
      Drive The Leveling Motor DOWN*1 Leveling motor downward operation ON/OFF

      ON: Moves down

      OFF: Stops

      *1: Perform the active test with the power switch on (READY).