PRE-CRASH SAFETY SYSTEM Laser Sensor Inspection

DESCRIPTION

The pre-crash safety city sensor uses the laser radar sensor to measure the distance to a preceding vehicle.

CAUTION / NOTICE / HINT

Note


  • When replacing the pre-crash safety city sensor, replace it with a new one. If an ECU which was installed to another vehicle is used, the information stored in the pre-crash safety city sensor will not match the information from the vehicle and, as a result, a DTC may be output.

  • When replacing the pre-crash safety city sensor with a new one, or performing removal, installation or replacement of the windshield glass, always perform "Recognition Camera/Target Position Memory" and "Beam Axis Learning".

    Perform adjustment with either "ONE TIME RECOGNITION" or "SEQUENTIAL RECOGNITION".


PROCEDURE


  1. READ VALUE USING GTS


    1. A0055KSE01
      Text in Illustration
      *a This Vehicle
      *b Preceding Vehicle
      *c 1.67 m (5.48 ft.)
      *d 1.33 m (4.36 ft.)

      Position the vehicles as shown in the illustration and measure the distance to the preceding vehicle.

      CAUTION:

      Perform the measurement inside the vehicle or somewhere backlighting will not directly contact the pre-crash safety city sensor (laser radar sensor).

      Tech Tips


      • Make sure that the distance from the pre-crash safety city sensor (laser radar sensor) to the edge of the rear bumper of the preceding vehicle is 3 m (9.84 ft.).

      • Make sure that the distance from the pre-crash safety city sensor (laser radar sensor) to the edge of the bumper of this vehicle is 1.33 m (4.36 ft.).

      • The Data List displays the distance from the pre-crash safety sensor (laser radar sensor) to the preceding vehicle.

      • Make sure that the preceding vehicle has not been modified.

    2. Using the GTS, read the Data List Click here.

      PCS/LDA/RSA/LVN
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Lidar Detect Target Distance Displays distance of the highest priority object which is detected by Lidar / 0 to 51.0 m Measured distance to preceding vehicle

      • Displays 0 m when a preceding vehicle is not detected.

      • Displays the distance from the pre-crash safety city sensor (laser sensor) to the preceding vehicle.

      Tech Tips

      If a vehicle is positioned in front and the Data List displays 0 m, the pre-crash safety city sensor (laser radar sensor) is malfunctioning.

      Result
      Result Proceed to
      Distance displayed in Data List is within 3.0 m +/- 0.5 m A
      Distance displayed in Data List is outside 3.0 m +/- 0.5 m B

    A

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Click here

    B

    REPLACE PRE-CRASH SAFETY CITY SENSOR Click here