AUTOMATIC HEADLIGHT BEAM LEVEL CONTROL SYSTEM DATA LIST / ACTIVE TEST


  1. 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.

    Tech Tips

    Using the GTS 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.

    DATA LIST


    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 / AFS*1 or HL AutoLeveling*2 / Data List / All Data.


      • *1: for Triple Beam Headlight

      • *2: for Single Beam Headlight

    5. According to the display on the GTS, read the Data List.


      Body Electrical > AFS > Data List
      Tester Display Measurement Item Normal Condition Reference Value Diagnostic Note
      Clearance Light State Clearance light state OFF or ON

      OFF: Clearance lights off

      ON: Clearance lights on

      		 -
      Right Cornering Light/Front Side Illuminate Light State Cornering light RH state OFF or ON

      OFF: Cornering light RH off

      ON: Cornering light RH on

      		 -
      Left Cornering Light/Front Side Illuminate Light State Cornering light LH state OFF or ON

      OFF: Cornering light LH off

      ON: Cornering light LH on

      		 -
      Daylight Operating State Daytime running light state OFF or ON

      OFF: Daytime running lights off

      ON: Daytime running lights on

      		 The display is different depending on the destination.
      +B Voltage Value Headlight ECU sub-assembly LH +B power supply voltage value 0 to 19.75 V 11 to 14 V -
      Traveling Direction Traveling direction Not Fwd or Fwd

      Not Fwd: Shift lever in R or N position

      Fwd: Shift lever not in R or N position

      		 -
      Steering Sensor Initialization Status Steering sensor initialization state Incomplete or Completed

      Incomplete: Steering sensor zero point calibration incomplete

      Completed: Steering sensor zero point calibration completed

      		 -
      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 State Daytime running light state OFF or ON

      OFF: Daytime running lights off

      ON: Daytime running lights on

      		 The display is different depending on the destination.
      Engine Engine condition Run or Stop

      Run: Engine is running

      Stop: Engine is stopped

      		 -
      Left and Right Leveling Motor Target Value (Integer) Left and right headlight leveling motor target value (Integer) 0 to 31 mm Changes according to the position of the headlight leveling motor -
      Left and Right Leveling Motor Target Value (Fraction) Left and right headlight leveling motor target value (Fraction) 0 to 0.9961 mm Changes according to the position of the headlight leveling motor -
      Left Leveling Motor Current Value (Integer) Current left headlight leveling motor target value (Integer) 0 to 31 mm Changes according to the position of the headlight leveling motor -
      Left Leveling Motor Current Value (Fraction) Current left headlight leveling motor target value (Fraction) 0 to 0.9961 mm Changes according to the position of the headlight leveling motor -
      Right Leveling Motor Current Value (Integer) Current right headlight leveling motor target value (Integer) 0 to 31 mm Changes according to the position of the headlight leveling motor -
      Right Leveling Motor Current Value (Fraction) Current right headlight leveling motor target value (Fraction) 0 to 0.9961 mm Changes according to the position of the headlight leveling motor -
      +B Headlight ECU sub-assembly LH IG power supply voltage value 0 to 19.75 V 11 to 14 V -
      Height Sens Pw Supply Val Height control sensor power supply value 0 to 5.00 V 4.61 to 5.00 V -
      Rr Height Sens Signal Val Rear height control sensor signal value 0 to 5.00 V 0.50 to 4.50 V The value changes according to the vehicle height.
      Steering Sens Signal Steering sensor signal value -384.0 deg to 382.5 deg 0.0 deg 0.0 deg is displayed when steering wheel is centered.
      Steering Sens Center Pos Steering sensor center position -3072.0 deg to 3070.5 deg 0.0 deg 0.0 deg is displayed when steering wheel is centered.
      FR Wheel Speed Front right wheel speed 0.00 to 260.00 km/h (161.56 mph)

      Condition can be displayed

      Vehicle stopped: 0 km/h (0 mph)

      		 -
      FL Wheel Speed Front left wheel speed 0.00 to 260.00 km/h (161.56 mph)

      Condition can be displayed

      Vehicle stopped: 0 km/h (0 mph)

      		 -
      Vehicle Speed Vehicle speed 0.00 to 260.00 km/h (161.56 mph)

      Condition can be displayed

      Vehicle stopped: 0 km/h (0 mph)

      		 -
      Rear Height Adjust Valid Flag Rear height adjustment range Valid or Invalid

      Valid: Rear height control sensor sub-assembly RH value within normal range

      Invalid: Rear height control sensor sub-assembly RH value out of 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 completed

      not comp: Headlight ECU sub-assembly LH not initialized after replacing.

      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

      completed: ECU not replaced and ECU has not been initialized at workshop.

      		 -
      Number Of Trouble Codes Number of trouble codes 0 to 255 Number of stored DTCs displayed -

      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 light off

      ON: Daytime running light on

      		 The display is different depending on the destination.
      Daylight Operating State Daytime running light state OFF or ON

      OFF: Daytime running light off

      ON: Daytime running light on

      		 The display is different depending on the destination.
      Clearance Light State Clearance light state OFF or ON

      OFF: Clearance light off

      ON: Clearance light on

      		 -
      Right Cornering Light State Cornering light RH state OFF or ON

      OFF: Cornering light RH off

      ON: Cornering light RH on

      		 -
      Left Cornering Light State Cornering light LH state OFF or ON

      OFF: Cornering light LH off

      ON: Cornering light LH on

      		 -
      +B Headlight ECU sub-assembly LH IG power supply voltage value 0 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 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 The value changes according to the vehicle height.
      Front Right Wheel Speed Value Front right wheel speed 0.00 to 260.00 km/h (161.56 mph)

      Condition can be displayed

      Vehicle stopped: 0 km/h (0 mph)

      		 -
      Front Left Wheel Speed Value Front left wheel speed 0.00 to 260.00 km/h (161.56 mph)

      Condition can be displayed

      Vehicle stopped: 0 km/h (0 mph)

      		 -
      Vehicle Speed Vehicle speed 0.00 to 260.00 km/h (161.56 mph)

      Condition can be displayed

      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 Valid or Invalid

      Valid: Rear vehicle height calibration not completed

      Invalid: Rear vehicle height calibration completed

      		 -
      Init Writing Count Number of times for initialization 0 to 255 Number of times for initialization -
      Sensor Initialization Hist Sensor initialization history not comp, 10%,25%, 50%, 75%,100% or complied

      not comp: Headlight ECU sub-assembly LH not initialized after replacing.

      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

      		 -
      Steering Sensor Signal Steering angle sensor value -384 to 382.5 deg 0.0 deg 0.0 deg is displayed when steering wheel is centered.
      Steering Sensor Center Position Steering angle sensor center position -3072 to 3070.5 deg 0.0 deg 0.0 deg is displayed when steering wheel is centered.
      +B Voltage Value Headlight ECU sub-assembly LH +B power supply voltage value 0 to 19.75 V 11 to 14 V -
      Leveling Motor Target Position Headlight leveling motor target position 0 to 102.3 % 10 to 90 % -
      Number Of Trouble Codes Number of trouble codes 0 to 255 Number of stored DTCs displayed -

  2. ACTIVE TEST

    Tech Tips

    Using the GTS 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 GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Turn the GTS on.

    4. Enter the following menus: Body Electrical / AFS*1 or HL AutoLeveling*2 / Active Test.


      • *1: for Triple Beam Headlight

      • *2: for Single Beam Headlight

    5. According to the display on the GTS, perform the Active Test.


      Body Electrical > AFS > Active Test
      Tester Display Measurement Item Control Range Diagnostic Note
      Drive The Leveling Motor Operates the headlight leveling motor Up, Down or Stop Perform with the vehicle stopped, power switch on (READY) and low beam headlights illuminated.
      Headlight Leveling Indicator "Headlight System Malfunction Visit Your Dealer" display OFF or ON -

      Body Electrical > HL AutoLeveling > Active Test
      Tester Display Measurement Item Control Range Diagnostic Note
      Drive The Leveling Motor Operates the headlight leveling motor Up, Down or Stop Perform with the vehicle stopped, power switch on (READY) and low beam headlights illuminated.
      Headlight Leveling Indicator "Headlight System Malfunction Visit Your Dealer" display OFF or ON