LEMON Manuals: Even more car manuals for everyone
Home >> Lexus >> 2015 >> IS 350 Base, AWD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Headlights >> Automatic Headlight Beam Level Control System - Diagnostics - Introduction >> Automatic Headlight Beam Level Control System >> Data List / Active Test [10/2016 - 09/2020] >> Data List / Active Test [10/2016 - 09/2020]

Data List / Active Test [10/2016 - 09/2020]

  1. DATA LIST 
    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.

    HINT: 

    Using the Techstream to read the 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.

    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 OFF or ON OFF: Low beam headlights off
      ON: Low beam headlights on      		 -
      Headlight High Beam State High beam headlight state OFF or ON OFF: High beam headlights off
      ON: High beam headlights on      		 -
      DRL Operating State Daytime running light state OFF or ON OFF: Daytime running lights off
      ON: Daytime running lights on      		 -
      Clearance Light State Parking light state OFF or ON OFF: Parking lights off
      ON: Parking lights on      		 -
      Right Cornering Light State Cornering light RH state OFF or ON OFF: Cornering light RH off
      ON: Cornering light RH on      		 Although this item is displayed on the Techstream, it is not applicable to this vehicle.
      Left Cornering Light State Cornering light LH state OFF or ON OFF: Cornering light LH off
      ON: Cornering light LH on      		 Although this item is displayed on the Techstream, it is not applicable to this vehicle.
      +B No. 1 headlight ECU sub-assembly LH IG power supply voltage value 0.00 to 19.75 V 11.00 to 14.00 V -
      Height Sens Pw Supply Val Rear height control sensor sub-assembly LH power supply value 0.00 to 5.00 V 4.61 to 5.00 V -
      Rr Height Sens Signal Val Rear height control sensor sub-assembly LH 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) Vehicle stopped: 0 km/h (0 mph) -
      Front Left Wheel Speed Value Front left wheel speed 0.00 to 260.00 km/h (162.00 mph) Vehicle stopped: 0 km/h (0 mph) -
      Vehicle Speed Vehicle speed 0.00 to 260.00 km/h (162.00 mph) Vehicle stopped: 0 km/h (0 mph) -
      Rear Height Adjust Value Rear height adjustment offset 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 Inval or Valid Inval: Rear height control sensor sub-assembly LH value out of normal range
      Valid: Rear height control sensor sub-assembly LH value within normal range      		 -
      Init Writing Count Number of times initialization performed 0 to 255 Number of times initialization performed -
      Sensor Initialization Hist Sensor initialization history not comp, 10%, 25%, 50%, 75%, 100% or complied
      • not comp: No. 1 headlight ECU sub-assembly LH not initialized after replacement
      • 10%: Initialization completed when fuel tank was 10% full
      • 25%: Initialization completed when fuel tank was 25% full
      • 50%: Initialization completed when fuel tank was 50% full
      • 75%: Initialization completed when fuel tank was 75% full
      • 100%: Initialization completed when fuel tank was 100% full
      • complied: No. 1 headlight ECU sub-assembly LH not replaced and has not initialized
      		 -
      Steering Sensor Signal Steering sensor value -384.0 to 382.5 deg 0.0 deg -
      Steering Sensor Center Position Steering sensor center position -3072.0 to 3070.5 deg 0.0 deg -
      +B Voltage Value No. 1 headlight ECU sub-assembly LH +B power supply voltage value 0.00 to 19.75 V 11.00 to 14.00 V -
      Leveling Motor Target Position Headlight leveling motor target position 0.0 to 102.3 % 10.0 to 90.0 % -
      Number Of Trouble Codes Number of trouble codes 0 to 255 Number of stored DTCs 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 Headlight leveling motor upward or downward operation Stop, Down or Up Perform the Active Test with the engine started and vehicle stopped.
      Headlight Leveling Indicator "Headlight System Malfunction Visit Your Dealer" display OFF or ON -
scientia non olet · About LEMON Manuals