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Inspection [07/2015 - ]: Procedure

  1. INSPECT LASER SENSOR 
    WARNING:
    • To prevent eye injury, do not peer directly into the laser sensor using optical instruments with a magnification function such as magnifying glasses or microscopic and objective lenses within a distance of 100 mm (3.94 in) from the sensor.
    • Because a simple reflector held with a hand is required, if heavy material such as a steel plate is used, it could be dropped resulting in an accident. Therefore, use light materials such as a plastic plate or cardboard when making the reflector.
    NOTE:
    • Perform the work in an area where 6 m (20 ft) or more of space from the front of the vehicle is available.
    • Remove cargo from the cabin and trunk compartment so that the vehicle is in an unloaded condition.
    • Adjust the air pressure of each tire to the specified value.
    1. To make the simple reflector, overlap three pieces of commercially available aluminum foil and adhere them to a plastic plate or piece of cardboard with a length of 50 cm (20 in) or more on one side.

      HINT: 

      • If two or fewer pieces of aluminum foil are used, near-infrared reflection may weaken and the Techstream will be unable to measure the correct distance.
      • A reflective material or material which facilitates near-infrared light reflection can be substituted for the aluminum foil.
    2. Park the vehicle on level ground.
    3. Connect the Techstream to the DLC3.
    4. Turn the engine switch on (IG).
    5. Turn the Techstream on.
    6. Enter the following menus: Body Electrical / SCBS / Data List / Distance from Bumper to Target that Sensor has Detected.

      Body Electrical > SCBS > Data List 

      Tester Display
      Distance from Bumper to Target that Sensor has Detected
    7. Stand at the position 6 m (20 ft) from the front end of the front bumper and hold the simple reflector made in Step1 at a height of 1.5 m {4.9 ft} from the ground to verify that the Techstream screen display is at 6 m (20 ft).
    8. Then, move to the position 4 m (13 ft) from the front end of the front bumper and hold the simple reflector at a height of 1 m (3 ft) from the ground to verify that the Techstream screen display is at 4 m (13 ft).
      GTY487449Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Anterior End of the Front Bumper *b Vehicle Center
      *c 6 m (20 ft) *d Second Measurement Point
      *e First Measurement Point *f 4 m (13 ft)
      *g 1.5 m (4.9 ft) *h 1 m (3 ft)

      HINT: 

      • The brand emblem of the front bumper indicates the center position at the rear of the vehicle.
      • The "DIST_BMP_TGT" monitoring value is displayed in 1 m (3 ft) increments.
    9. If there is a malfunction, verify that there is no damage with the laser sensor tab and in the laser sensor installation area of the windshield.

      Refer to REMOVAL [07/2015 - ] 

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