PARK ASSIST / MONITORING: BLIND SPOT MONITOR SENSOR: ADJUSTMENT; 2019 MY Corolla Corolla Hatchback Corolla HV GR Corolla [06/2018

Last Modified: 05-13-2024	6.11:8.1.0	Doc ID: RM100000001D1NE
Model Year Start: 2019	Model: GR Corolla	Prod Date Range: [06/2018 - 01/2019]
Title: PARK ASSIST / MONITORING: BLIND SPOT MONITOR SENSOR: ADJUSTMENT; 2019 MY Corolla Corolla Hatchback Corolla HV GR Corolla [06/2018 - 01/2019]

ADJUSTMENT

PROCEDURE

1. PERFORM BLIND SPOT MONITOR BEAM AXIS CONFIRMATION

HINT:

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

(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.

*A	Left Side Of Vehicle	*B	Right Side Of Vehicle
*a	Vehicle Center Line	*b	Rear Bumper
*c	Inspection Area	-	-

Standard:

Location	Measurement
a	1 m (3.28 ft.)
b	5 m (16.41 ft.)
c	6 m (19.68 ft.)

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 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.

(b) Place the reflector.

(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.

*a	String	*b	Weight
*c	Center	-	-

HINT:

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

(2) Hang a weight with a pointed tip from the center of the radiator grille (or front panel) emblem, and mark the front center point of the vehicle (point B) on the ground.

*a	String	*b	Weight
*c	Center	-	-

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).

*a	Vehicle center line

(4) Enlarge and print out the poster shown in the illustration.

*a	Poster	*b	Edge of Rear Bumper
*c	Line C	*d	Vehicle center line

Standard:

Part	Angle
a	52.9°

(5) Attach the printed poster to the floor with the vehicle center line aligned with point A as shown in the illustration.

*a	Poster
*b	Vehicle Center Line

(6) Align a piece of string with line C and mark point D at a distance of 3322 mm (10.9 ft.) from point A.

*a	Vehicle Front
*b	Vehicle Center Line
*c	String
*d	Poster

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

SST: 09870-60000

09870-60010

SST: 09870-60040

*A	Left Side Of Vehicle	*B	Right Side Of Vehicle
*a	Vehicle Center Line	*b	Reflector

Standard:

Part	Length
a	3322 mm (10.9 ft.)

NOTICE:

Set the reflector so that its center is 724 mm (2.37 ft.) above the ground.

*a	SST (reflector)
*b	724 mm (2.37 ft.)

The center of the triangular pyramid is the reference point for the setting position and angle.

*a	Center Of Triangular Pyramid

Set the reflector as shown in the illustration so that the center of the triangular pyramid faces the blind spot monitor sensor.

(1) Connect the Techstream to the DLC3.

(2) Turn the engine switch on (IG).

(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.

HINT:

The master beam is on the LH side and the slave beam is on the RH side.

Body Electrical > Blind Spot Monitor Master > Utility

Tester Display
BSM Master Beam Axis Display

Body Electrical > Blind Spot Monitor Slave > Utility

Tester Display
BSM Slave Beam Axis Display

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

Allowable Range:

Item	Blind Spot Monitor Sensor LH	Blind Spot Monitor Sensor RH
Angle	-3.6 to +3.6°	-3.6 to +3.6°

HINT:

If the displayed results are outside the permissible range, the following are possible causes. Therefore, implement countermeasures, check the blind spot monitor beam axis and perform the procedure again.

Possible Causes	Countermeasure
Incorrect SST (reflector) position	Check the position of SST (reflector) and checking space and perform the procedure again
A metallic object is located in the vicinity of the checking space	Check the position of SST (reflector) and checking space and perform the procedure again
The blind spot monitor sensor installation is abnormal	Check the installation condition of the blind spot monitor sensor

(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.

Body Electrical > Blind Spot Monitor Master > Utility

Tester Display
BSM Master Beam Axis Adjustment

Body Electrical > Blind Spot Monitor Slave > Utility

Tester Display
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.

2. PERFORM 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 (+/-2.2°) by using a digital angle gauge, and that the sensor is 46 to 54° from the line parallel to the vehicle center line.

(a) Remove the rear bumper assembly.

Click here

(b) Place the digital angle gauge on a level (gradient within 1%) and perform zero-point adjustment as shown in the illustration.

*a	(+)	*b	(-)
*c	When Storing Zero Point	*d	After Storing Zero Point, Indicates 90° When Fully Horizontal

(c) Set the digital angle gauge to the outward facing surface of the blind spot monitor sensor as shown in the illustration, and check that the perpendicular angle of the blind spot monitor sensor is within the permissible range.

*a	Digital Angle Gauge
*b	Blind Spot Monitor Sensor
*c	Outward Facing Surface

NOTICE:

The sensor angle is the measured sensor angle subtracted from 90°.

*a	(+)
*b	(-)
*c	Horizontal Line
*d	Digital Angle Gauge
*e	Outward Facing Surface

HINT:

The outward facing surface (installation angle) is positive (+) when it faces higher than horizontal.

Standard:

Item	Allowable Range
Blind Spot Monitor Sensor LH	+2.2 to -2.2°
Blind Spot Monitor Sensor RH	+2.2 to -2.2°

(d) 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

108 mm (4.25 in.)

78 to 87 mm

(3.07 to 3.43 in.)

Degree	Specified Value
A	46 to 54°

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.

*A	Vehicle Rear (LH)
*a	Vehicle Front
*b	Vehicle Rear
*c	Vehicle Center Line
*d	Stud Bolt
*e	Stud Bolt Center Line
*f	Line Parallel To The Vehicle Center Line