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Home >> Lexus >> 2017 >> IS 200t Base >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Exterior Lights >> Adaptive Front-Lighting System - Diagnostics - Introduction >> AFS (Adaptive Front-Lighting System) >> Freeze Frame Data [10/2016 - 09/2020] >> Freeze Frame Data [10/2016 - 09/2020]

Freeze Frame Data [10/2016 - 09/2020]

  1. FREEZE FRAME DATA 
    1. Whenever an AFS (adaptive front-lighting system) DTC is stored, the headlight swivel ECU assembly stores the current vehicle state as freeze frame data.
  2. CHECK FREEZE FRAME DATA 
    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 / AFS / Trouble Codes.
    5. Select a DTC to display its freeze frame data.

      Body Electrical > AFS 

      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      AFS OFF Switch AFS On/Off switch signal OFF or ON OFF: AFS On/Off switch is off
      ON: AFS On/Off switch is on      		 -
      Traveling Direction Traveling direction Not Fwd or Fwd Not Fwd: Shift lever in R or N
      Fwd: Shift lever not in R or N      		 -
      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      		 -
      Engine Engine condition Stop or Run Stop: Engine is stopped
      Run: Engine is running      		 -
      Steering Sens Signal Steering sensor signal value -384.0 to 382.5 deg Condition can be displayed -
      FR Wheel Speed Front right wheel speed 0.00 to 327.67 km/h (203.61 mph) Condition can be displayed -
      FL Wheel Speed Front left wheel speed 0.00 to 327.67 km/h (203.61 mph) Condition can be displayed -
      Vehicle Acceleration Vehicle acceleration -445.64 to 445.60 m/s2 Condition can be displayed -
      Swivel Motor Slave Status of the headlight swivel motor slave Normal or Abnoml Normal: Headlight swivel motor is normal
      Abnoml: Headlight swivel motor is not normal      		 If operation is abnormal, there may be a LIN communication error.
      Swivel Motor Over-Run Status of the headlight swivel motor over-run Normal or Abnoml Normal: Headlight swivel motor is normal
      Abnoml: Headlight swivel motor is not normal      		 If operation is abnormal, there may be a LIN communication error.
      Leveling Motor Slave Status of the headlight swivel motor slave Normal or Abnoml Normal: Headlight swivel motor is normal
      Abnoml: Headlight swivel motor is not normal      		 If operation is abnormal, there may be a LIN communication error.
      Leveling Motor Over-Run Status of the headlight swivel motor over-run Normal or Abnoml Normal: Headlight swivel motor is normal
      Abnoml: Headlight swivel motor is not normal      		 If operation is abnormal, there may be a LIN communication error.
      +B Headlight swivel ECU assembly IG power supply voltage value 0.00 to 19.75 V 11.00 to 14.00 V -
      Number Of Trouble Codes Number of trouble codes 0 to 255 Number of stored DTCs displayed -
  3. CLEAR FREEZE FRAME DATA 
    NOTE:

    Clearing the DTCs will also clear the freeze frame data.

    1. Connect the Techstream to the DLC3.
    2. Turn the engine switch on (IG).
    3. Clear the DTCs and freeze frame data.

      Refer to DTC CHECK / CLEAR [10/2016 - 09/2020] 

      Body Electrical > AFS > Clear DTCs 

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