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Home >> Lexus >> 2024 >> LX 600 Base >> Repair and Diagnosis >> Restraints >> Restraints Control Systems >> Seat Belt Warning System (W/ Occupant Classification System) - Diagnostics & Symptom Tests >> SEAT BELT WARNING SYSTEM (w/ Occupant Classification System) >> Data List / Active Test [12/2021 - ] >> Data List / Active Test [12/2021 - ]

Data List / Active Test [12/2021 - ]

  1. DATA LIST 
    NOTE:

    In the following table, 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 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.

    1. Read the Data List according to the display on the GTS.

      Body Electrical > Combination Meter > Data List 

      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Driver Buckle Switch Driver seat belt buckle switch Fastened or Not Fastened Fastened: Driver seat belt buckle switch fastened
      Not Fastened: Driver seat belt buckle switch unfastened
      -
      3rd Right Seat Buckle / Occupant Detection Warning Switch Rear No. 2 RH seat belt buckle switch status* OFF or ON OFF: Rear No. 2 RH seat belt fastened
      ON: Rear No. 2 RH seat belt not fastened
      -
      3rd Left Seat Buckle / Occupant Detection Warning Switch Rear No. 2 LH seat belt buckle switch status* OFF or ON OFF: Rear No. 2 LH seat belt fastened
      ON: Rear No. 2 LH seat belt not fastened
      -
      Driver Seatbelt Warning Buzzer Function Driver seat belt warning buzzer OFF or ON Customize setting displayed -
      Passenger Seatbelt Warning Buzzer Function Front passenger seat belt warning buzzer OFF or ON Customize setting displayed -
      Rear Right Seatbelt Warning Buzzer Function Rear RH seat belt warning buzzer OFF or ON Customize setting displayed -
      Rear Left Seatbelt Warning Buzzer Function Rear LH seat belt warning buzzer OFF or ON Customize setting displayed -
      Rear Center Seatbelt Warning Buzzer Function Rear center seat belt warning buzzer OFF or ON Customize setting displayed -
      3rd Right Seatbelt Warning Buzzer Function Rear No. 2 RH seat belt warning buzzer setting status* OFF or ON Customize setting displayed -
      3rd Left Seatbelt Warning Buzzer Function Rear No. 2 LH seat belt warning buzzer setting status* OFF or ON Customize setting displayed -
      1. *: w/ Rear No. 2 Seat Belt Warning

      Body Electrical > Power Distribution Box > Data List 

      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Passenger Seat Buckle Switch Status Front passenger seat belt buckle switch Set, Unset or Unknown Set: Front passenger seat belt buckle switch fastened
      Unset: Front passenger seat belt buckle switch unfastened
      Unknown: Data is not determined
      Although the item is displayed on the GTS, it is not applicable to this vehicle.
      Passenger Seat Occupant Sensor Status Front passenger occupant detection sensor OFF, ON or Unknown OFF: Front passenger seat not occupied
      ON: Front passenger seat occupied
      Unknown: Data is not determined
      Although the item is displayed on the GTS, it is not applicable to this vehicle.
      Rear Seat RH Buckle Switch Status Rear RH seat belt buckle switch Set, Unset or Unknown Set: Rear RH seat belt buckle switch fastened
      Unset: Rear RH seat belt buckle switch unfastened
      Unknown: Data is not determined
      -
      Rear Seat Center Buckle Switch Status Rear center seat belt buckle switch Set, Unset or Unknown Set: Rear center seat belt buckle switch fastened
      Unset: Rear center seat belt buckle switch unfastened
      Unknown: Data is not determined
      -
      Rear Seat LH Buckle Switch Status Rear LH seat belt buckle switch Set, Unset or Unknown Set: Rear LH seat belt buckle switch fastened
      Unset: Rear LH seat belt buckle switch unfastened
      Unknown: Data is not determined
      -

      Body Electrical > Main Body > Data List 

      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      RR Door Courtesy Switch Status Rear door courtesy light switch RH Close or Open Close: Rear door RH closed
      Open: Rear door RH open
      -
      RL Door Courtesy Switch Status Rear door courtesy light switch LH Close or Open Close: Rear door LH closed
      Open: Rear door LH open
      -
      RL-Seat Occupant Sensor Switch Rear occupant detection sensor (for LH) OFF or ON ON: Rear LH seat occupied
      OFF: Rear LH seat not occupied
      -
      RR-Seat Occupant Sensor Switch Rear occupant detection sensor (for RH) OFF or ON ON: Rear RH seat occupied
      OFF: Rear RH seat not occupied
      -

      Body Electrical > SRS Airbag > Data List 

      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Driver Seat Buckle Switch Status Driver side buckle switch Unknown, Unbuckle, Buckle or Malfunction Unknown: Data is not determined
      Unbuckle: Driver side seat belt unbuckle
      Buckle: Driver side seat belt buckle
      Malfunction: Driver side seat belt buckle circuit malfunction
      -
  2. ACTIVE TEST 

    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. Perform the Active Test according to the display on the GTS.

      Body Electrical > Combination Meter > Active Test 

      Tester Display Measurement Item Control Range Diagnostic Note
      Driver Side Seat Belt Warning Driver seat belt warning light OFF or ON -
      Passenger Side Seat Belt Warning Front passenger seat belt warning light OFF or ON Although the item is displayed on the GTS, it is not applicable to this vehicle.