RM38N0EC _56 Audio / Visual / Telematics _111825 PARK ASSIST / MONITORING _0501857 PARKING SUPPORT BRAKE SYSTEM D

PARK ASSIST / MONITORING PARKING SUPPORT BRAKE SYSTEM CALIBRATION

NOTICE:: When any of the following parts have been replaced, perform adjustment shown in the following table. If not, the parking support brake system may not operate correctly.

PRECAUTION (PROCEDURE 1)

The necessary procedures (adjustment, calibration, initialization or registration) that must be performed after parts are removed and installed, or replaced during parking support brake system removal/installation are shown below.

For the installation location of the ultrasonic sensors, refer to Parts Location.

Click hereAudio / Visual / Telematics>PARK ASSIST / MONITORING>PARKING SUPPORT BRAKE SYSTEM>PARTS LOCATION202406,999999,_56,_111825,_0501857,RM100000002JYUU,

Part Name	Operation	Adjustment Item	Proceed to
Suspension, tires, etc.	The vehicle height changes because of suspension or tire replacement	Measurement of ultrasonic sensor detection angle	Procedure 2, 3
Suspension, tires, etc.		Ultrasonic sensor detection angle registration	Procedure 4
Front bumper assembly	· Replacement · Installation position of the front bumper assembly changes because of the removal and installation of the front bumper assembly	Measurement of ultrasonic sensor detection angle	Procedure 2, 3
Front bumper assembly		Ultrasonic sensor detection angle registration	Procedure 4
Rear bumper assembly	· Replacement · Installation position of the rear bumper assembly changes because of the removal and installation of the rear bumper assembly	Measurement of ultrasonic sensor detection angle	Procedure 2, 3
Rear bumper assembly		Ultrasonic sensor detection angle registration	Procedure 4
Clearance warning ECU assembly	Replacement	Update ECU security key	(202111,999999,_V1,_111780,_0504977,RM100000001ZKRX,)
		Measurement of ultrasonic sensor detection angle	Procedure 2, 3
		Bumper type registration	Procedure 4
		Ultrasonic sensor detection angle registration	Procedure 4
Ultrasonic sensor	· Removal and installation · Replacement	Measurement of ultrasonic sensor detection angle	Procedure 2, 3
	· Removal and installation · Replacement	Ultrasonic sensor detection angle registration	Procedure 4
	An ultrasonic sensor becomes misaligned	Measurement of ultrasonic sensor detection angle	Procedure 2, 3
	An ultrasonic sensor becomes misaligned	Ultrasonic sensor detection angle registration	Procedure 4
	An ultrasonic sensor is subjected to impact	Measurement of ultrasonic sensor detection angle	Procedure 2, 3
	An ultrasonic sensor is subjected to impact	Ultrasonic sensor detection angle registration	Procedure 4
Blind spot monitor system*	Replacement	Blind spot monitor beam axis confirmation	(202111,999999,_56,_111825,_0500531,RM100000001Z2RP,)

*: w/ Blind Spot Monitor System

PREPARATION (PROCEDURE 2)

Preparation

Digital angle gauge

Digital angle gauge attachment

Masking tape (To prevent damage)

A level

SST: 09989-00020

Confirm levelness of floor surface.

Place a bubble level on a level surface and confirm that the bubble is centered.

NOTICE:: Make sure that there is no gravel, sand, etc., and that the surface is not undulating.

HINT:: By adjusting the direction of the bubble level, it is possible to find a position where the bubble is centered.

ii.

Turn on the digital angle gauge.

iii.

Place the digital angle gauge in the same location and direction as that of the bubble level where the levelness of the surface was confirmed.

NOTICE:: Confirm that the location and direction of the digital angle gauge is exactly the same as that of the bubble level.

1.667,1 2.135,0.74 false 1.448,2.635 2.031,2.938 false 5.594,3.26 6.125,3.49 false 5.635,1.49 6.167,1.719 false 6.24,1.698 6.552,1.896 0.313,0.198 10 false *a 2.094,2.906 2.406,3.104 0.313,0.198 10 false *b 6.208,3.479 6.521,3.677 0.313,0.198 10 false *a 2.167,0.615 2.479,0.813 0.313,0.198 10 false *a

Digital Angle Gauge

Level

iv.

Press the "ZERO" switch to memorize the zero point (perfectly level).

NOTICE:: Make sure that the digital angle gauge does not move when pressing the switch. If the digital angle gauge moves when the switch is pressed, an incorrect zero point may be memorized and it will not be possible to accurately check for levelness.

Using the digital angle meter in which the zero point (perfectly level) has been memorized, measure the angle of the floor surface at the 4 positions at the front of the vehicle and the 4 positions at the rear of the vehicle as shown in the illustration. Write the measured values into the following worksheet.

NOTICE:: ·

Always position the digital angle gauge as shown in the illustration.

·

Make sure that there is no gravel, sand, etc., and that the floor surface is not undulating.

·

When measuring the angle of the floor surface, avoid uneven areas such as joints between tiles.

HINT:: If necessary, the digital angle gauge can be placed anywhere within the specific area when measuring the angle of the floor surface for positions A, C, F and H.

0.25,0.208 1.521,0.396 1.271,0.188 10 false Position A and C: 4.75,0.208 6.021,0.396 1.271,0.188 10 false Position F and H: 0.49,2.469 0.646,2.667 0.156,0.198 10 false A 1.167,2.448 1.323,2.646 0.156,0.198 10 false B 0.677,3.75 0.833,3.948 0.156,0.198 10 false C 1.167,3.76 1.323,3.958 0.156,0.198 10 false D 6.031,2.448 6.188,2.646 0.156,0.198 10 false E 6.635,2.448 6.792,2.646 0.156,0.198 10 false F 6.021,3.74 6.177,3.938 0.156,0.198 10 false G 6.521,3.74 6.677,3.938 0.156,0.198 10 false H 0.25,0.771 1.292,1.063 1.042,0.292 10 false 50 mm (1.97 in.) 1.323,0.771 2.365,1.063 1.042,0.292 10 false 50 mm (1.97 in.) 4.823,0.781 5.865,1.073 1.042,0.292 10 false 50 mm (1.97 in.) 5.927,0.771 6.969,1.063 1.042,0.292 10 false 50 mm (1.97 in.) 0.594,4.51 1.167,4.99 0.573,0.479 10 false 250 mm (9.84 in.) 6.177,4.51 6.76,5.01 0.583,0.5 10 false 250 mm (9.84 in.) 1.229,4.521 1.823,4.958 0.594,0.438 10 false 100 mm (3.94 in.) 5.521,4.51 6.115,4.948 0.594,0.438 10 false 100 mm (3.94 in.)

Confirmation Area

vi.

Using the following worksheet, calculate the average of the measurements taken at the 4 positions in front of the vehicle, and calculate the average of the measurements taken at the 4 positions behind the vehicle. Confirm that the front measurement average and the rear measurement average are not more than approximately 0.37 degrees. Also, confirm that the front measurement average and the rear measurement average is less than 0.2 degrees.

NOTICE:: If the front measurement average and the rear measurement average are more than approximately 0.37 degrees or the difference between the front measurement average and the rear measurement average is 0.2 degrees or more, choose another work area as it is not possible to accurately check the installation angle of the sensors.

Worksheet:

1.344,2.438 1.458,2.583 1.458,2.583 1.677,2.583 false 5.313,2.573 5.448,2.573 5.448,2.573 5.896,2.427 false 0.656,0.5 0.813,0.698 0.156,0.198 10 false A 0.302,2.49 1.51,2.688 1.208,0.198 10 false 250 mm (9.84 in.) 1.729,2.5 3.052,2.729 1.323,0.229 10 false 100 mm (3.94 in.) 4.198,2.469 5.521,2.656 1.323,0.188 10 false 100 mm (3.94 in.) 5.833,2.51 6.927,2.719 1.094,0.208 10 false 250 mm (9.84 in.) 1.146,0.5 1.302,0.698 0.156,0.198 10 false B 0.542,1.875 0.698,2.073 0.156,0.198 10 false C 1.052,1.854 1.208,2.052 0.156,0.198 10 false D 6.01,0.5 6.167,0.698 0.156,0.198 10 false E 6.49,0.5 6.646,0.698 0.156,0.198 10 false F 6.083,1.865 6.24,2.063 0.156,0.198 10 false G 6.583,1.865 6.74,2.063 0.156,0.198 10 false H 1.615,2.979 2.365,3.177 0.75,0.198 10 false Front side 4.948,2.979 5.698,3.177 0.75,0.198 10 false Rear side 1.104,3.292 1.26,3.49 0.156,0.198 10 false A 2.781,3.281 2.938,3.479 0.156,0.198 10 false B 4.448,3.302 4.604,3.5 0.156,0.198 10 false E 6.063,3.292 6.219,3.49 0.156,0.198 10 false F 6.094,4 6.25,4.198 0.156,0.198 10 false H 4.427,3.99 4.583,4.188 0.156,0.198 10 false G 2.781,4 2.938,4.198 0.156,0.198 10 false D 1.104,4 1.26,4.198 0.156,0.198 10 false C 0.417,4.844 3.438,5.052 3.021,0.208 10 false (A + B + C + D)/ 4 = front measurement average 3.781,4.844 6.802,5.052 3.021,0.208 10 false (E + F + G + H)/ 4 = rear measurement average 0.302,5.688 2.885,5.896 2.583,0.208 10 false Both of the following conditions are met: 0.354,5.969 6.656,6.313 6.302,0.344 10 false - The difference between the front measurement average and the rear measurement average is less than 0.2 degrees. 0.354,6.469 6.656,6.813 6.302,0.344 10 false - The front measurement average and the rear measurement average are not more than approximately 0.37 degrees. 1.5,6.99 3.427,7.198 1.927,0.208 10 false OK: Proceed to the next step. 4.094,7 6.094,7.208 2,0.208 10 false NG: Choose another work area. 0.875,7.333 6.344,7.552 5.469,0.219 10 false (Front measurement average + Rear measurement average)/ 2 = Floor surface inclination 0.833,8.281 6.427,8.51 5.594,0.229 10 false After calculating the floor surface inclination, proceed to "Calibrate the digital angle gauge".

vii.

Average the front measurement average and the rear measurement average, then round the answer to 1 decimal place (E.g. 0.0927 degrees is rounded to 0.1 degrees) to obtain the floor surface inclination value.

viii.

Calibrate the digital angle gauge

Adjust the angle of the digital angle gauge until it reads the same value of the floor surface inclination, then press the "ZERO" switch to memorize the zero point (level with floor surface).

NOTICE:: Before pressing the "ZERO" switch, confirm that the digital angle gauge reading is positive if the floor angle inclination is positive, and negative if the floor angle inclination is negative.

0.865,1.844 1.688,1.531 true 0.802,0.958 1.698,1.385 true 4.188,2.125 6.323,2.521 2.135,0.396 10 false After calibrating, displays 90° when turned on its side 1.75,2.375 2.802,2.594 1.052,0.219 10 false Calibrating 0.604,0.885 0.958,1.052 0.354,0.167 10 false (+) 0.635,1.802 0.99,1.969 0.354,0.167 10 false (-)

2.24,2.979 2.5,2.979 2.5,2.979 3.073,1.917 false 2.781,1.281 2.573,0.479 2.573,0.479 2.344,0.479 false 0.333,0.375 2.479,0.573 2.146,0.198 10 false Digital angle gauge attachment 1.385,2.885 2.344,3.083 0.958,0.198 10 false Masking tape

Prepare the digital angle gauge

Attach the digital angle gauge attachment to the digital angle gauge.

SST: 09989-00020

ii.

Attach masking tape to the digital angle gauge attachment.

Remove all luggage from the vehicle.

Adjust the tire inflation pressure to the specified pressure.

Click hereGeneral>MAINTENANCE>TIRE AND WHEEL>INSPECTION202111,999999,_V1,_112220,_0502516,RM100000001ZAD4,

Check the height of the vehicle.

Click hereSuspension>ALIGNMENT / HANDLING DIAGNOSIS>FRONT WHEEL ALIGNMENT>ADJUSTMENT202111,999999,_53,_111813,_0503137,RM100000001ZDJY,

SENSOR HEIGHT AND ALIGNMENT INSPECTION (PROCEDURE 3)

HINT:: Check if the installation angle of each ultrasonic sensor is appropriate.

Preparation

Visually check that the bumper, grill and ultrasonic sensors are installed properly and are not damaged.

NOTICE:: If the bumper, grill or any ultrasonic sensor is not installed correctly, the calibration may not be able to be completed.

ii.

Check the tire pressures and adjust them if necessary.

Click hereGeneral>MAINTENANCE>TIRE AND WHEEL>INSPECTION202111,999999,_V1,_112220,_0502516,RM100000001ZAD4,

NOTICE:: ·

Ensure that the vehicle is level in an area with no wind.

·

Do not lean on the vehicle.

·

Do not do anything that may affect the level of the vehicle during the calibration, such as getting in or out of the vehicle, or adding or removing luggage.

Sensor height and alignment inspection

0.677,0.917 0.5,0.833 true 0.26,1.469 0.49,1.469 true 0.229,2.271 0.49,2.271 true 0.698,2.781 0.385,3 true 6.625,1.563 6.833,1.563 true 6.615,2.167 6.833,2.167 true 6.708,0.854 6.49,0.958 true 6.76,2.885 6.521,2.75 true 0.271,0.76 0.583,0.917 0.313,0.156 10 false *1 0.083,1.385 0.396,1.542 0.313,0.156 10 false *2 0.052,2.188 0.365,2.344 0.313,0.156 10 false *3 0.219,2.969 0.531,3.125 0.313,0.156 10 false *4 6.781,0.729 7.094,0.885 0.313,0.156 10 false *5 6.896,1.49 7.146,1.688 0.25,0.198 10 false *6 6.896,2.094 7.146,2.271 0.25,0.177 10 false *7 6.802,2.875 7.115,3.031 0.313,0.156 10 false *8

*1	Front Corner Ultrasonic Sensor RH	*2	Front Center Ultrasonic Sensor RH
*3	Front Center Ultrasonic Sensor LH	*4	Front Corner Ultrasonic Sensor LH
*5	Rear Corner Ultrasonic Sensor RH	*6	Rear Center Ultrasonic Sensor RH
*7	Rear Center Ultrasonic Sensor LH	*8	Rear Corner Ultrasonic Sensor LH

1.208,1.042 0.729,2.542 false 0.083,2.604 1.26,2.813 1.177,0.208 10 false Center of Sensor 1.823,2.573 2.917,2.76 1.094,0.188 10 false Sensor Height

Measure the installation height of the sensors.

Standard Height (Front Bumper) (for SFTM Made):

Sensor Location	Sensor Height
Front Center Ultrasonic Sensor	594.8 to 651.4 mm (23.4 to 25.6 in.)
Front Corner Ultrasonic Sensor	607.3 to 663.3 mm (23.9 to 26.1 in.)

Standard Height (Front Bumper) (for GTMC Made):

Sensor Location	Sensor Height
Front Center Ultrasonic Sensor	556.0 to 612.5 mm (21.9 to 24.1 in.)
Front Corner Ultrasonic Sensor	592.4 to 648.4 mm (23.3 to 25.5 in.)

Standard Height (Rear Bumper):

Sensor Location	Sensor Height
Rear Center Ultrasonic Sensor	653.9 to 706.4 mm (25.7 to 27.8 in.)
Rear Corner Ultrasonic Sensor	651.6 to 703.9 mm (25.7 to 27.7 in.)

NOTICE:: If the installation height of a sensor is not as specified, it may not be possible to measure the sensor angles correctly. If so, unload the vehicle and measure the installation height of the sensors again.

HINT:: Use the center of the sensor as the measuring point.

1.479,1.323 1.302,1.052 1.302,1.052 1.135,1.052 false 1.979,1.74 1.969,1.146 1.969,1.146 2.135,1.146 false 2.073,1.802 2.073,2.094 2.073,2.094 2.24,2.094 false 0.292,0.896 1.125,1.26 0.833,0.365 10 true Digital angle gauge 2.271,2.01 3.406,2.24 1.135,0.229 10 true Ultrasonic Sensor 2.146,0.979 3.323,1.344 1.177,0.365 10 true Digital angle gauge attachment

Using the digital angle gauge, measure the angles of each sensor. Write down the measured values.

Measure the angle of the front sensors as shown in the illustration.

NOTICE:: Ensure that the digital angle gauge is flush with the face of the sensor.

ii.

Measure the angle of the rear sensors.

NOTICE:: Ensure that the digital angle gauge is flush with the face of the sensor.

iii.

2.385,1.333 2.5,1.49 2.5,1.49 2.646,1.49 true 2.125,1.396 2.073,1.896 2.073,1.896 1.969,1.896 true 2.469,1.24 2.563,0.698 2.563,0.698 2.688,0.698 true 1.74,0.719 1.823,0.26 1.823,0.26 1.979,0.26 true 0.104,0.094 1.125,0.281 1.021,0.188 10 false For example: 0.031,1.813 1.927,2.073 1.896,0.26 10 false Digital angle gauge attachment 2.031,0.156 3.375,0.458 1.344,0.302 10 false Digital angle gauge 2.729,0.583 3.365,0.969 0.635,0.385 10 false Horizontal line 0.885,0.719 1.563,0.99 0.677,0.271 10 false + 0.917,1.552 1.25,1.75 0.333,0.198 10 false - 2.708,1.396 3.365,1.781 0.656,0.385 10 false Ultrasonic Sensor

Confirm that the angles of the sensors are as specified.

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

HINT:: ·

The digital angle gauge should indicate 90° when turned on its side.

·

If the face of the sensor is tilted upwards, the sensor angle will be positive.

Standard Angle (Front Bumper) (for SFTM Made):

Sensor Location	Installation Angle
Front Center Ultrasonic Sensor	-5.0 to 3.1°
Front Corner Ultrasonic Sensor	1.9 to 10.0°

Standard Angle (Rear Bumper) (for SFTM Made):

Sensor Location	Installation Angle
Rear Center Ultrasonic Sensor	0.2 to 8.3°
Rear Corner Ultrasonic Sensor	-2.7 to 5.4°

Standard Angle (Front Bumper) (for GTMC Made):

Sensor Location	Installation Angle
Front Center Ultrasonic Sensor	-4.8 to 3.4°
Front Corner Ultrasonic Sensor	3.1 to 11.3°

Standard Angle (Rear Bumper) (for GTMC Made):

Sensor Location	Installation Angle
Rear Center Ultrasonic Sensor	0.1 to 8.3°
Rear Corner Ultrasonic Sensor	-2.8 to 5.4°

iv.

If the angle or height of the sensors is not as specified, confirm that the installation is correct and then perform troubleshooting again.

REGISTRATION (PROCEDURE 4)

Preparation

Confirm that the following DTCs are not output.

System	Proceed to
Toyota Parking Assist-sensor System	(202111,999999,_56,_111825,_0501856,RM100000001Z7UT,)
Parking Support Brake System	(202111,999999,_56,_111825,_0501857,RM100000001Z7VS,)

NOTICE:: If DTC C1AE187/C1AE287/C1AE387/C1AE487/C1AE687/C1AE787/C1AE887 or C1AE987 are output at this point, it is not due to a malfunction. Proceed with the calibration.

Connect the GTS to the DLC3.

Turn the ignition switch to ON.

Turn the GTS on.

Enter the following menus: Body Electrical / Clearance Warning / Utility.

Body Electrical > Clearance Warning > Utility

Tester Display
ECU Calibration

50005 438 2535

According to the display on the GTS, perform calibration.

HINT:: If "Battery or Steering Sensor" is selected, further calibration is not required. (Bumper type registration is not required.)

Enter the bumper type using the GTS.

Bumper Type	Value
Standard	1

HINT:: If the clearance warning ECU assembly is replaced or removed and installed, it is necessary to perform bumper type registration.

Using the GTS, enter the measured sensor values.

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

HINT:: The digital angle gauge should indicate 90° when turned on its side.

Disconnect the GTS from the DLC3.