Calibration [10/2023 - ]

WARNING: This page is about a different variant/trim than selected.

NOTE:

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.

Refer to PARTS LOCATION [12/2021 - ]

HINT:

When the bumper or grille is removed and installed, or when the sensor is removed and installed, the registration is not required. However, if the body part is damaged or deformed due to an accident or contact, etc., and the body part is modified, measurement and registration are required.

Part Name	Operation	Adjustment Item	Proceed to
Steering sensor	Removal and installation of the steering sensor Removal and installation of the connector of the steering sensor Replacement	Steering angle neutral point (Initialize parking support brake system)	Procedure 4
Radiator grille	When the radiator grille and ultrasonic sensor is damaged or deformed due to an accident or contact with other objects, etc., or the bumper installation area on the body is repaired.	Measurement of ultrasonic sensor detection angle	Procedure 2, 3
Radiator grille		Ultrasonic sensor detection angle registration	Procedure 4
Front bumper assembly	When the front bumper and ultrasonic sensor is damaged or deformed due to an accident or contact with other objects, etc., or the bumper installation area on the body is repaired.	Measurement of ultrasonic sensor detection angle	Procedure 2, 3
Front bumper assembly		Ultrasonic sensor detection angle registration	Procedure 4
Rear bumper assembly	When the rear bumper and ultrasonic sensor is damaged or deformed due to an accident or contact with other objects, etc., or the bumper installation area on the body is repaired.	Measurement of ultrasonic sensor detection angle	Procedure 2, 3
Rear bumper assembly		Ultrasonic sensor detection angle registration	Procedure 4
Clearance warning ECU assembly	Replacement	Measurement of ultrasonic sensor detection angle	Procedure 2, 3
		Steering angle neutral point	Procedure 4
		Bumper type registration
		Ultrasonic sensor detection angle registration
Ultrasonic sensor	Replacement	Measurement of ultrasonic sensor detection angle	Procedure 2, 3
Ultrasonic sensor	Replacement	Ultrasonic sensor detection angle registration	Procedure 4
Auxiliary battery	Cable is disconnected from the negative (-) auxiliary battery terminal	Steering angle neutral point*	Procedure 4
Blind spot monitor sensor	Replacement	Blind spot monitor beam axis confirmation	Refer to ADJUSTMENT [11/2018 - ]

*: The steering sensor zero point can also be calibrated by driving the vehicle.
Refer to INITIALIZATION [12/2021 - ]

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.
NOTE:
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.

Fig 1: Confirm That The Bubble Level Is Centered
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Turn on the digital angle gauge.

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.

NOTE:

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

Fig 2: Digital Angle Gauge

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Digital Angle Gauge

Level

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

NOTE:

Always position the digital angle gauge in the direction 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 specified area when measuring the angle of the floor surface for positions A, C, F and H.

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Confirmation Area

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.

NOTE:

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:

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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.
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).

NOTE:
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.

Fig 3: Confirm That The Digital Angle Gauge Is Reading Properly
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Prepare the digital angle gauge

Fig 4: Preparing The Digital Angle Gauge
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
1. Attach the digital angle gauge attachment to the digital angle gauge.
  - SST: 09989-00020
2. Attach masking tape to the digital angle gauge attachment.
Remove all luggage from the vehicle.
Adjust the tire inflation pressure to the specified pressure.
Refer to INSPECTION [08/2020 - ]

SENSOR HEIGHT AND ALIGNMENT INSPECTION (PROCEDURE 3)

HINT:

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

Preparation
1. Visually check that the bumper, grille and ultrasonic sensors are installed properly and are not damaged.
  NOTE:
  If the bumper, grille or any ultrasonic sensor is not installed correctly, the calibration may not be able to be completed.
2. Check the tire pressures and adjust them if necessary.
  Refer to SERVICE DATA [08/2020 - ]
  NOTE:
  - 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

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Measure the installation height of the sensors. (for TMMC Made)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

STANDARD ANGLE (FRONT BUMPER):

Sensor Location	Sensor Height
Front Center Ultrasonic Sensor	682.8 to 734.8 mm (26.9 to 28.9 in.)
Front Corner Ultrasonic Sensor	676.7 to 689.5 mm (26.6 to 27.1 in.)

STANDARD HEIGHT (REAR BUMPER):

Sensor Location	Sensor Height
Rear Center Ultrasonic Sensor	445.4 to 623.3 mm (17.5 to 24.5 in.)
Rear Corner Ultrasonic Sensor	440.7 to 617.1 mm (17.4 to 24.3 in.)

NOTE:

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.

Measure the installation height of the sensors. (for TMC Made)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

STANDARD HEIGHT (FRONT BUMPER) (EXCEPT OFF ROAD PACKAGE):

Sensor Location	Sensor Height
Front Center Ultrasonic Sensor	689.5 to 767.0 mm (27.1 to 30.2 in.)
Front Corner Ultrasonic Sensor	633.0 to 710.2 mm (24.9 to 28.0 in.)

STANDARD HEIGHT (FRONT BUMPER) (FOR OFF ROAD PACKAGE):

Sensor Location	Sensor Height
Front Center Ultrasonic Sensor	646.8 to 724.3 mm (25.5 to 28.5 in.)
Front Corner Ultrasonic Sensor	461.1 to 538.4 mm (18.2 to 21.2 in.)

STANDARD HEIGHT (REAR BUMPER):

Sensor Location	Sensor Height
Rear Center Ultrasonic Sensor	577.3 to 652.5 mm (22.7 to 25.7 in.)
Rear Corner Ultrasonic Sensor	564.8 to 639.9 mm (22.2 to 25.2 in.)

NOTE:

HINT:

Use the center of the sensor as the measuring point.

Using the digital angle gauge, measure the angle of each sensor.

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Measure the angle of the front sensors as shown in the illustration.
NOTE:
Ensure that the digital angle gauge is flush with the face of the sensor.
Measure the angle of the rear sensors.
NOTE:
Ensure that the digital angle gauge is flush with the face of the sensor.

Confirm that the angles of the sensors are as specified. (for TMMC Made)

Fig 5: If The Face Of The Sensor Is Tilted Upwards, The Sensor Angle Will Be Positive

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NOTE:

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):

Sensor Location	Installation Angle
Front Center Ultrasonic Sensor	-1.8 to 4.3°
Front Corner Ultrasonic Sensor	-1.4 to 4.7°

STANDARD ANGLE (REAR BUMPER):

Sensor Location	Installation Angle
Rear Center Ultrasonic Sensor	3.0 to 9.1°
Rear Corner Ultrasonic Sensor	4.5 to 10.6°

Confirm that the angles of the sensors are as specified. (for TMC Made)

Fig 6: If The Face Of The Sensor Is Tilted Upwards, The Sensor Angle Will Be Positive

NOTE:

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) (EXCEPT OFF ROAD PACKAGE):

Sensor Location	Installation Angle
Front Center Ultrasonic Sensor	-1.8 to 4.4°
Front Corner Ultrasonic Sensor	-3.4 to 2.8°

STANDARD ANGLE (FRONT BUMPER) (FOR OFF ROAD PACKAGE):

Sensor Location	Installation Angle
Front Center Ultrasonic Sensor	-3.6 to 2.6°
Front Corner Ultrasonic Sensor	1.2 to 7.9°

STANDARD ANGLE (REAR BUMPER):

Sensor Location	Installation Angle
Rear Center Ultrasonic Sensor	-0.9 to 5.3°
Rear Corner Ultrasonic Sensor	3.0 to 9.2°

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

Check the following.
- Installation status of the front bumper assembly (rattling, uplifting)
- Installation status of the radiator grille assembly (rattling, uplifting)
- Installation status of the rear bumper assembly (rattling, uplifting)
- Fitting status of ultrasonic sensor and retainer
- Installation status of ultrasonic sensor cushion (uplifting, deformed)
- Installation status of the ultrasonic sensor retainer (rattling, uplifting)

REGISTRATION (PROCEDURE 4)

Preparation

Confirm that the following DTCs are not output.

System	Proceed to
Intuitive Parking Assist System	Refer to DIAGNOSTIC TROUBLE CODE CHART [10/2023 - ]
Parking Support Brake System	Refer to DIAGNOSTIC TROUBLE CODE CHART [12/2021 - ]

NOTE:

If DTC C1AE1-87, C1AE2-87, C1AE3-87, C1AE4-87, C1AE6-87, C1AE7-87, C1AE8-87 or C1AE9-87 are output at this point, it is not a malfunction. Proceed with the calibration.

Connect the Techstream to the DLC3.
Turn the power switch on (IG).
Turn the Techstream on.

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

Body Electrical > Clearance Warning > Utility

Tester Display
ECU Calibration

According to the display on the Techstream, 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 Techstream.

Bumper Type	Value
except Off Road Package	1
for Off Road Package	2

HINT:

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

Using the Techstream, enter the measured sensor values.
NOTE:
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 Techstream from the DLC3.