LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Toyota >> 2017 >> Prius C Three >> Repair and Diagnosis >> Restraints >> Restraints Control Systems >> Pre-Collision System (Service Information) >> Front Sensor >> Adjustment [11/2015 - ] >> Procedure
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Adjustment [11/2015 - ]: Procedure

  1. PREPARATION FOR PRE-COLLISION CITY SENSOR OPTICAL AXISLEARNING 
    1. for One Time Recognition:
      1. Park the vehicle on a level surface.
        GTY550516Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        TEXT IN ILLUSTRATION

        *a 2 m (6.56 ft.)
        *b 1 m (3.28 ft.)
        NOTE:
        • Make sure that the vehicle is parked on a level surface.
        • Make sure there are no black and white patterned objects in front of the vehicle.
        • Make sure that the area shown in the illustration in front of the vehicle is free of reflective or shiny objects.
        • Perform the following procedures indoors.
        • Perform the following procedures in an area with no wind.
        • Perform the following procedures in a bright area.
    2. for Sequential Recognition:
      1. Park the vehicle on a level surface.
        GTY584153Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        TEXT IN ILLUSTRATION

        *a 3 m (9.84 ft.)
        NOTE:
        • Make sure that the vehicle is parked on a level surface.
        • Make sure there are no black and white patterned objects in front of the vehicle.
        • Make sure that the area shown in the illustration in front of the vehicle is free of reflective or shiny objects.
        • Perform the following procedures indoors.
        • Perform the following procedures in an area with no wind.
        • Perform the following procedures in a bright area.
    3. Check that the headlights are turned off.
    4. Adjust the tire inflation pressure to the specified pressure (Refer to PROCEDURE - Step 1 ).
    5. Clean the windshield glass.
  2. PERFORM PRE-COLLISION CITY SENSOR LEARNING (for One Time Recognition) 
    1. Create a target sheet.
      1. Print 3 copies of the illustration.
        GTY579587Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      2. Check that the dimensions are within the values shown in the illustration.
        GTY729166Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        TEXT IN ILLUSTRATION

        *a 12 mm (0.472 in.)
        *b 60 mm (2.36 in.)
        *c 120 mm (4.72 in.)
        NOTE:
        • Make sure that the black areas of the target sheet are not glossy.
        • Make sure that the borders of the black and white areas on the target sheet are straight, and are not warped or blurry.

        HINT: 

        If the dimensions of the created target sheet are not within +/- 5 mm (0.197 in.) of the specified values, adjust the printer settings and reprint the target sheet so that the dimensions are as specified.

    2. Attach the target sheet.
      1. Prepare a piece of cardboard with the following dimensions.
      2. Draw lines on the cardboard as shown in the illustration.
        GTY604050Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        TEXT IN ILLUSTRATION

        *a Cardboard *b 130 mm (5.12 in.) or more
        *c 730 mm (2.39 ft.) or more *d 297 mm (11.69 in.) or more
        *e 65 mm (2.56 in.) or more *f 90°
      3. Place the 3 target sheets on the cardboard with the black area of each at the top right and align the boarders of the black and white areas with the lines as shown in the illustration.
        GTY697714Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        TEXT IN ILLUSTRATION

        *a Boarder of Black and White Area *b Line
      4. Securely attach the target sheets to the cardboard using double-sided tape.
        NOTE:

        Do not attach reflective materials, such as clear adhesive tape, to the target sheet surface as this may affect target recognition.

      5. Hang a weight with a pointed tip from the top center of the target sheet as shown in the illustration.
        GTY563195Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        TEXT IN ILLUSTRATION

        *a String
        *b Pointed Tip Weight
        *c Mark-off Line
        • SST: 09870-60000 
          1. 09870-60010
          2. 09870-60020
      6. Using double-sided tape, attach the target sheet to the reflector so that the weight is aligned with the mark-off line of SST.

        HINT: 

        • Make sure that the points (A), (B) and (C) of the target sheet are aligned with the string.
        • As SST may fall forward, make sure to place a weight on the base of SST.
      7. Move the reflector up or down so that the center of the target sheet is at the height shown in the illustration, and secure the reflector in place.
        GTY570857Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        TEXT IN ILLUSTRATION

        *a 1270 mm (50.0 in.)
        • SST: 09870-60000 
          1. 09870-60010
          2. 09870-60020

        HINT: 

        If the center of the target sheet is not within +/- 6 mm (0.236 in.) of the height specified, adjust the position of the reflector so that the height is as specified.

    3. Determine the target placement position.
      NOTE:
      • Make sure the background behind the target has no patterns.
      • Make sure that there are no reflective or shiny objects around the target.
      • Make sure that the shadow of the target is not cast onto a wall as this may cause a target recognition error.
      1. Hang a weight with a pointed tip from the center of the rear emblem, and mark the rear center point of the vehicle (point A) on the ground.
        GTY735471Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        TEXT IN ILLUSTRATION

        *a String *b Weight
        *c Center - -

        HINT: 

        Lightly flick the string with your fingers several times to confirm that the string is perpendicular to the ground.

      2. Hang a weight with a pointed tip from the center of the front emblem, and mark the front center point of the vehicle (point B) on the ground (placement position).
        GTY728874Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        TEXT IN ILLUSTRATION

        *a String *b Weight
        *c Center - -

        HINT: 

        Lightly flick the string with your fingers several times to confirm that the string is perpendicular to the ground.

      3. Using tape and a string, create a line that connects point B to point A and extends at least 200 mm (7.87 in.) beyond the front center point of the vehicle (target position line).
        GTY562458Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        TEXT IN ILLUSTRATION

        *a String *b Tape

        HINT: 

        • Make sure the string is taut when securing it with tape.
        • Lightly flick the string with your fingers several times to confirm that the string is aligned with point B.
    4. Perform Recognition Camera/Target Position Memory.
      WARNING:

      Do not look into the pre-collision city sensor from a close distance.

      NOTE:
      • Close all of the doors.
      • Make sure that no one is inside the vehicle.
      • Do not lean on the vehicle.
      • Make sure that the headlights are turned off.
      1. Connect the Techstream to the DLC3.
      2. Turn the power switch to ON.
      3. Turn the Techstream on.
      4. Enter the following menus:

        Chassis > PCS/LDA/RSA/LVN > Utility

      5. According to the display on the Techstream, press "Next". *1
      6. Confirm the conditions displayed on the screen, and then press "Next".
      7. Input "1286 mm (50.63 in.)" for the height of the recognition camera.
      8. Input "21 mm (0.83 in.)" for the lateral position of the recognition camera, then press "Next".
      9. Input "0 deg" for the yaw angle of the recognition camera.
      10. Input "-1.10 deg" for the pitch angle of the recognition camera, and then press "Next".
      11. Input "1270 mm (50.0 in.)" for the height of the target.
      12. Input "1540 mm (60.63 in.)" for the distance between the recognition camera and target, and then press "Next".
      13. Input "297 mm (11.69 in.)" for the distance between the targets.
      14. Input "120 mm (4.72 in.)" for the target size, and then press "Next".
      15. Input "1693 mm (66.65 in.)" for the width of the vehicle.
      16. Input "732 mm (28.82 in.)" for the distance between the recognition camera and front tires, and then press "Next".
      17. Input "0 deg" for the pitch offset angle.
      18. Input "0 mm (0 in.)" for the distance between the recognition camera and the radar, and then press "Next".
      19. If "Recognition Camera/Target Position Memory has failed." is displayed on the Techstream screen, confirm the conditions displayed on the screen, then press "Yes" and repeat the procedure from *1.
      20. Press "Exit" to exit the Recognition Camera/Target Position Memory utility.
    5. Perform Recognition Camera Axis Adjust (target positioning).
      NOTE:
      • If "Recognition Camera Axis Adjust has failed." is displayed on the screen, confirm the following conditions, turn the power switch off and then to ON, and repeat the procedure from *1.
      • Make sure that the height of the target is correct.
      • Make sure that the target placement positions are correct.
      • Make sure that the orientation of the target sheet is correct (black area positioned at the top right).
      • Make sure that the surrounding area is sufficiently bright.
      • Make sure that there are no reflective or shiny objects around the target.
      • Make sure that there are no black and white patterned objects around the target or on a wall near the target.
      • Make sure that the shadow of the target is not cast onto a wall.
      • Make sure that the windshield glass is clean.
      1. Position SST so that it is aligned with the target position line and the mark-off line is aligned with point B (placement position) as shown in the illustration.
        GTY580735Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        TEXT IN ILLUSTRATION

        *a Target Position Line
        *b Mark-off Line
        • SST: 09870-60000 
          1. 09870-60010
          2. 09870-60020
      2. Enter the following menus:

        Chassis > PCS/LDA/RSA/LVN > Utility

      3. According to the display on the Techstream, press "Next". *1
      4. Check that the values stored in the ECU are correct, and then press "Next".
      5. Confirm the conditions displayed on the screen, and then press "Next".
      6. Select "Batch recognition", and then press "Next".
      7. Check that target is placed at point B (placement position), and then press "Next".
      8. If "Failed to read axis adjustment data" is displayed, perform Recognition Camera/Target Position Memory, and repeat the procedure from *1.
      9. Confirm the conditions displayed on the screen, and then press "Next".
      10. Select the type of the headlights the vehicle is equipped with, and then press "Next". *2
      11. Confirm the type of the headlights selected, and then press "Exit" to exit the Recognition Camera Axis Adjust utility.
      12. If "Headlight Type Setting has failed" is displayed on the screen, confirm the conditions, then press "Yes" and repeat the procedure from *2.
      13. Turn the power switch off.
      14. Disconnect the Techstream from the DLC3.
  3. PERFORM PRE-COLLISION CITY SENSOR LEARNING (for Sequential Recognition) 
    1. Create a target sheet.
      1. Print the illustration.
        GTY540934Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      2. Check that the dimensions are within the values shown in the illustration.
        GTY729166Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        TEXT IN ILLUSTRATION

        *a 16 mm (0.630 in.)
        *b 80 mm (3.15 in.)
        *c 160 mm (6.30 in.)
        NOTE:
        • Make sure that the black areas of the target sheet are not glossy.
        • Make sure that the borders of the black and white areas on the target sheet are straight, and are not warped or blurry.

        HINT: 

        If the dimensions of the created target sheet are not within +/- 5 mm (0.197 in.) of the specified values, adjust the printer settings and reprint the target sheet so that the dimensions are as specified.

    2. Attach the target sheet.
      GTY572837Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      TEXT IN ILLUSTRATION

      *a Target Sheet
      *b Cardboard
      1. Cut a piece of cardboard to the same size as the target sheet.
      2. Place the target sheet on the cardboard with the black area at the top right as shown in the illustration, and securely attach the target sheet using double-sided tape.
        NOTE:

        Do not attach reflective materials, such as clear adhesive tape, to the target sheet surface as this may affect target recognition.

      3. Hang a weight with a pointed tip from the top center of the target sheet as shown in the illustration.
        GTY607265Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        TEXT IN ILLUSTRATION

        *a String
        *b Pointed Tip Weight
        *c Mark-off Line
        • SST: 09870-60000 
          1. 09870-60010
          2. 09870-60020
      4. Using double-sided tape, attach the target sheet to the reflector so that the weight is aligned with the mark-off line of SST.

        HINT: 

        Make sure that the points (A), (B) and (C) of the target sheet are aligned with the string.

      5. Move the reflector up or down so that the center of the target sheet is at the height shown in the illustration, and secure the reflector in place.
        GTY576692Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        TEXT IN ILLUSTRATION

        *a 1270 mm (50.0 in.)

        HINT: 

        If the center of the target sheet is not within +/- 6 mm (0.236 in.) of the height specified, adjust the position of the reflector so that the height is as specified.

    3. Determine the target placement position.
      NOTE:
      • Make sure the background behind the target has no patterns.
      • Make sure that there are no reflective or shiny objects around the target.
      • Make sure that the shadow of the target is not cast onto a wall as this may cause a target recognition error.
      1. Hang a weight with a pointed tip from the center of the rear emblem, and mark the rear center point of the vehicle (point A) on the ground.
        GTY735471Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        TEXT IN ILLUSTRATION

        *a String *b Weight
        *c Center - -

        HINT: 

        Lightly flick the string with your fingers several times to confirm that the string is perpendicular to the ground.

      2. Hang a weight with a pointed tip from the center of the front emblem, and mark the front center point of the vehicle (point B) on the ground.
        GTY728874Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        TEXT IN ILLUSTRATION

        *a String *b Weight
        *c Center - -

        HINT: 

        Lightly flick the string with your fingers several times to confirm that the string is perpendicular to the ground.

      3. Using tape and a string, create a line that connects point B to point A and extends at least 2300 mm (7.54 ft.) beyond the front center point of the vehicle.
        GTY587207Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        TEXT IN ILLUSTRATION

        *a String *b Tape
        *c 660 mm (2.16 ft.) *d 2260 mm (7.41 ft.)

        HINT: 

        • Make sure the string is taut when securing it with tape.
        • Lightly flick the string with your fingers several times to confirm that the string is aligned with point B.
      4. Mark point C at a position 660 mm (2.16 ft.) in front of point B.
      5. Mark point D at a position 2260 mm (7.41 ft.) in front of point B.
      6. Using a string, mark line E at a position 1000 mm (3.28 ft.) from point C.
      7. Using a string, mark line H at a position 1000 mm (3.28 ft.) from point C.
      8. Using a string, mark line F at a position 1000 mm (3.28 ft.) from point D.
      9. Using a string, mark line I at a position 1000 mm (3.28 ft.) from point D.
      10. Mark point G (placement point 2) at the point where line E and line F intersect.
      11. Mark point J (placement point 3) at the point where line H and line I intersect.
      12. Using tape and a string, create a line that connects point G and point J (target position line).
        GTY549439Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        TEXT IN ILLUSTRATION

        *a String *b Tape
        *c Target Position Line - -

        HINT: 

        • Make sure the string is taut when securing it with tape.
        • Lightly flick the string with your fingers several times to confirm that the string is aligned with points G and J.
      13. Mark point K (placement position 1) at the point the string connecting points C and D and the string connecting points G and J intersect.
      14. Confirm that the distance between points K and G (placement positions 1 and 2), and K and J (placement positions 1 and 3) is 600 mm (23.62 in.).
        GTY541249Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        TEXT IN ILLUSTRATION

        *a String *b 600 mm (23.62 in.)
        NOTE:

        If the distance between either pair of points is not within +/- 3 mm (0.118 in.) mm of the specified value, start over from the marking of point A.

    4. Perform Recognition Camera/Target Position Memory.
      WARNING:

      Do not look into the pre-collision city sensor from a close distance.

      NOTE:
      • Close all doors.
      • Make sure that no one is inside the vehicle.
      • Do not lean on the vehicle.
      • Make sure that the headlights are turned off.
      1. Connect the Techstream to the DLC3.
      2. Turn the power switch to ON.
      3. Turn the Techstream on.
      4. Enter the following menus:

        Chassis > PCS/LDA/RSA/LVN > Utility

      5. According to the display on the Techstream, press "Next". *1
      6. Confirm the conditions displayed on the screen, and then press "Next".
      7. Input "1286 mm (50.63 in.)" for the height of the recognition camera.
      8. Input "21 mm (0.83 in.)" for the lateral position of the recognition camera, then press "Next".
      9. Input "0 deg" for the yaw angle of the recognition camera.
      10. Input "-1.10 deg" for the pitch angle of the recognition camera, and then press "Next".
      11. Input "1270 mm (50.0 in.)" for the height of the target.
      12. Input "3000 mm (118.11 in.)" for the distance between the recognition camera and target, and then press "Next".
      13. Input "600 mm (23.62 in.)" for the distance between the targets.
      14. Input "160 mm (6.30 in.)" for the target size, and then press "Next".
      15. Input "1693 mm (66.65 in.)" for the width of the vehicle.
      16. Input "732 mm (28.82 in.)" for the distance between the recognition camera and front tires, and then press "Next".
      17. Input "0 deg" for the pitch offset angle.
      18. Input "0 mm (0 in.)" for the distance between the recognition camera and the radar, and then press "Next".
      19. If "Recognition Camera/Target Position Memory has failed." is displayed on the Techstream screen, confirm the conditions displayed on the screen, then press "Yes" and repeat the procedure from *1.
      20. Press "Exit" to exit the Recognition Camera/Target Position Memory utility.
    5. Perform Recognition Camera Axis Adjust (target positioning).
      NOTE:
      • If "Recognition Camera Axis Adjust has failed." is displayed on the screen, confirm the following conditions, turn the power switch off and then to ON, and repeat the procedure from *1.
      • Make sure that the height of the target is correct.
      • Make sure that the target placement positions are correct.
      • Make sure that the orientation of the target sheet is correct (black area positioned at the top right).
      • Make sure that the surrounding area is sufficiently bright.
      • Make sure that there are no reflective or shiny objects around the target.
      • Make sure that there are no black and white patterned objects around the target or on a wall near the target.
      • Make sure that the shadow of the target is not cast onto a wall.
      • Make sure that the windshield glass is clean.
      1. Position SST so that it is aligned with the target position line and the mark-off line is aligned with point K (placement position 1) as shown in the illustration.
        GTY567931Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        TEXT IN ILLUSTRATION

        *a Target Position Line
        *b Mark-off Line
        • SST: 09870-60000 
          1. 09870-60010
          2. 09870-60020
      2. Enter the following menus:

        Chassis > PCS/LDA/RSA/LVN > Utility

      3. According to the display on the Techstream, press "Next". *1
      4. Check that the values stored in the ECU are correct, and then press "Next".
      5. Confirm the conditions displayed on the screen, and then press "Next".
      6. Select "Sequential recognition", and then press "Next".
      7. Check that target is placed at point K (placement position 1), and then press "Next".
      8. Position SST so that it is aligned with the target position line and the mark-off line is aligned with point G (placement position 2) as shown in the illustration.
        GTY699082Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        TEXT IN ILLUSTRATION

        *a Target Position Line
        *b Mark-off Line
        • SST: 09870-60000 
          1. 09870-60010
          2. 09870-60020
        NOTE:

        Position SST and press "Next" within 3 minutes of the screen changing to the Recognition Camera Axis Adjust screen for point G (placement position 2).

      9. Position SST so that it is aligned with the target position line and the mark-off line is aligned with point J (placement position 3) as shown in the illustration.
        GTY733682Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        TEXT IN ILLUSTRATION

        *a Target Position Line
        *b Mark-off Line
        • SST: 09870-60000 
          1. 09870-60010
          2. 09870-60020
        NOTE:

        Position SST and press "Next" within 3 minutes of the screen changing to the Recognition Camera Axis Adjust screen for point J (placement position 3).

      10. If "Failed to read axis adjustment data" is displayed, perform Recognition Camera/Target Position Memory, and repeat the procedure from *1.
      11. Confirm the conditions displayed on the screen, and then press "Next".
      12. Select the type of the headlights the vehicle is equipped with, and then press "Next". *2
      13. Confirm the type of the headlights selected, and then press "Exit" to exit the Recognition Camera Axis Adjust utility.
      14. If "Headlight Type Setting has failed" is displayed on the screen, confirm the conditions, then press "Yes" and repeat the procedure from *2.
      15. Turn the power switch off.
      16. Disconnect the Techstream from the DLC3.
scientia non olet · About LEMON Manuals