Last Modified: 04-05-2023 6.11:8.1.0 Doc ID: RM100000001983S
Model Year Start: 2018 Model: Sienna Prod Date Range: [11/2017 -           ]
Title: PARK ASSIST / MONITORING: BLIND SPOT MONITOR SYSTEM: OPERATION CHECK; 2018 - 2020 MY Sienna [11/2017 -        ]

OPERATION CHECK

HINT:

The blind spot monitor beam axis confirmation is performed to confirm whether the sensor's beam axis is correct, and to adjust the beam axis by using a reflector.

BLIND SPOT MONITOR BEAM AXIS CONFIRMATION

(a) When performing the blind spot monitor beam axis confirmation, move the vehicle to a place where the space shown in the illustration can be secured.

NOTICE:

  • Perform this inspection on level ground.
  • Make sure that there are no metal objects around the vehicle or on the ground.
  • Unload the vehicle before beginning the inspection.
  • Confirm that the tire pressure is correct before beginning the inspection.
  • Do not place any objects other than the reflector (such as a large metallic object) in the inspection area or allow people to enter the inspection area (W 6 m (19.68 ft.) x L 6 m (19.68 ft.) x H 4 m (13.12 ft.)) shown in the illustration.
  • Check the DTC C1ABB and DTC C1ABC are not output.

(b) Place the reflector.

(1) From the center of the rear emblem, hang a weight with a pointed tip, and mark the rear center point of the vehicle on the ground (mark A).

*a

String

*b

Weight

*c

Center point

*d

Bilateral Symmetry

HINT:

Lightly flick the string with your fingers several times to confirm that the string is aligned with mark A.

(2) From the center of the front emblem, hang a weight with a pointed tip, and mark the front center point of the vehicle on the ground (mark B).

*a

String

*b

Weight

*c

Center point

*d

Bilateral Symmetry

HINT:

Lightly flick the string with your fingers several times to confirm that the string is aligned with mark (B).

(3) Draw a vehicle center line so that it passes through mark (A) and (B) (front and rear center points).

(4) Print out the following illustration on a large piece of paper.

(5) Place the printout on the floor with the point A aligned with the longitudinal center line of the vehicle.

(6) Align a piece of string with line C and mark point D at a distance of 3783 mm (12.41 ft.) from point A.

(7) Set the reflector at the point D shown in the illustration below.

SST: 09870-60000

09870-60010

SST: 09870-60040

NOTICE:

  • Set the reflector so that its center is 612 mm (2.01 ft.) above the ground.
  • The center of the triangular pyramid is the reference point for the setting position and angle.
  • Set the reflector as shown in the illustration so that the center of the triangular pyramid faces the blind spot monitor sensor.

(c) Perform the blind spot monitor beam axis display.

(1) Connect the Techstream to the DLC3.

(2) Turn the ignition switch ON.

(3) Turn the blind spot monitor system on.

(4) Turn the Techstream on.

(5) Enter the following menus: Body Electrical / Blind Spot Monitor Master or Blind Spot Monitor Slave / Utility / BSM Master Beam Axis Display or BSM Slave Beam Axis Display.

(6) Check the results displayed for the BSM beam axis display.

Allowable Range:

Item

Blind Spot Monitor Sensor RH (Master)

Blind Spot Monitor Sensor LH (Slave)

Angle

-3.6 to +3.6°

-3.6 to +3.6°

HINT:

If the results are outside the allowable range, it is possible that the reflector position is incorrect, there is a metallic object near the inspection area or the blind spot monitor sensor installation condition is abnormal, so check the reflector positioning, the inspection area and the blind spot monitor sensor installation condition, and perform the inspection again.

(d) Perform the blind spot monitor beam axis adjustment.

(1) Enter the following menus: Body Electrical / Blind Spot Monitor Master or Blind Spot Monitor Slave / Utility / BSM Master Beam Axis Adjustment or BSM Slave Beam Axis Adjustment.

HINT:

When values on the axis display are in the allowable range, performing this adjustment compensates for any deviation from the normal value.

BLIND SPOT MONITOR SENSOR INSTALLATION CONDITION INSPECTION

NOTICE:

  • Perform this inspection on level ground.
  • Unload the vehicle before beginning the inspection.
  • Confirm that the tire pressure is correct before beginning the inspection.

HINT:

The blind spot monitor sensor installation condition inspection is performed to confirm whether the sensor is perpendicular to the floor surface (+/-3°) by using a jig, and that the sensor is 16 to 24° from the line parallel to the vehicle center line.

(a) Remove the rear bumper.

Click here 2017 - 2020 MY Sienna [08/2016 -        ]; EXTERIOR PANELS / TRIM: REAR BUMPER: REMOVAL

(b) Attach a jig similar to the one shown in the illustration to the outward facing surface of the blind spot monitor sensor and check that the measurement or angle is within the allowable range to confirm that the blind spot monitor sensor is perpendicular to the floor surface (+/-3°).

HINT:

A digital angle meter can also be used to check that the blind spot monitor sensor is perpendicular to the floor surface or within the allowable range.

Standard

 

A

B

Blind spot monitor sensor RH (Master)

7 mm

(0.276 in.)

-7 mm

(-0.276 in.)

Blind spot monitor sensor LH (Slave)

7 mm

(0.276 in.)

-7 mm

(-0.276 in.)

 

X

Y

Blind spot monitor sensor RH (Master)

-3°

Blind spot monitor sensor LH (Slave)

-3°

(c) Using the sensor installation stud bolt center lines as a reference, check that the stud bolts are as shown in the illustration.

Standard:

Dimension

Specified Value

y

30 to 44 mm

(1.18 to 1.73 in.)

Degree

Specified Value

A

16 to 24°

HINT:

If the results are not as specified, it is possible that the blind spot monitor sensor installation area (frame, stud bolt) is deformed, so make corrections as necessary.