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Home >> Lexus >> 2016 >> IS 350 Base, AWD >> Repair and Diagnosis >> Accessories & Equipment >> Headlights >> Automatic Headlight Beam Level Control System - Diagnostics - Introduction >> Automatic Headlight Beam Level Control System >> Data List / Active Test [04/2013 - 10/2016] >> Data List / Active Test [04/2013 - 10/2016]
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Data List / Active Test [04/2013 - 10/2016]

  1. DATA LIST 

    HINT: 

    Using the Techstream to read Data List allows the values or states of switches, sensors, actuators 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 engine switch on (IG).
    3. Turn the Techstream on.
    4. Enter the following menus: Body Electrical / HL AutoLeveling / Data List.
    5. Read the Data List according to the display on the Techstream.

      Body Electrical > HL AutoLeveling > Data List 

      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
      -
      Headlight High Beam State High beam headlight state ON or OFF ON: High beam headlights on
      OFF: High beam headlights off
      -
      +B IG power supply voltage value 0.00 to 19.75 V 11.00 to 14.00 V -
      Height Sens Pw Supply Val Height control sensor power supply value 0.00 to 5.00 V 4.61 to 5.00 V -
      Rr Height Sens Signal Val Rear height control sensor signal value 0.00 to 5.00 V 0.50 to 4.50 V Value changes according to vehicle height
      Front Right Wheel Speed Value Front right wheel speed 0.00 to 260.00 km/h (162.00 mph) Condition can be displayed -
      Front Left Wheel Speed Value Front left wheel speed 0.00 to 260.00 km/h (162.00 mph) Condition can be displayed -
      Vehicle Speed Vehicle speed 0.00 to 260.00 km/h (162.00 mph) Condition can be displayed -
      Rear Height Adjust Value Rear height adjustment off set value 0 to 1023 Actual rear height adjustment normal value is displayed (If there is a malfunction, no value is 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 

    HINT: 

    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 engine switch on (IG).
    3. Turn the Techstream on.
    4. Enter the following menus: Body Electrical / HL AutoLeveling / Active Test.
    5. Perform the Active Test according to the display on the Techstream.

      Body Electrical > HL AutoLeveling > Active Test 

      Tester Display Measurement Item Control Range Diagnostic Note
      Drive The Leveling Motor Leveling motor upward or downward operation Stop/Down/Up Perform the Active Test with the engine started and vehicle stopped.