Toyota Yaris: Millimeter Wave Radar Sensor / Installation

Toyota Yaris XP210 (2020-2025) Reapir and Service Manual / Engine & Hybrid System / Cruise Control / Millimeter Wave Radar Sensor / Installation

INSTALLATION

PROCEDURE

1. INSTALL MILLIMETER WAVE RADAR SENSOR ASSEMBLY

NOTICE:

If the millimeter wave radar sensor assembly has been struck or dropped, replace the millimeter wave radar sensor assembly with a new one.

(a) Engage the guides to install the millimeter wave radar sensor assembly.

	Bolt
	Screw

(b) Install the 2 bolts and screw in the order shown in the illustration.

Torque:

Bolt :

4.5 N·m {46 kgf·cm, 40 in·lbf}

2. INSTALL FRONT BUMPER ASSEMBLY

Click here

3. UPDATE ECU SECURITY KEY

Click here

4. ADJUST MILLIMETER WAVE RADAR SENSOR

(a) When the millimeter wave radar sensor assembly is replaced with a new one, adjustment of the radar sensor beam axis must be performed.

HINT:

Millimeter wave radar sensor assembly Learning can be performed by using either Triangle Target or Flat Surface Target or Driving Adjustment.

Triangle Target:
Click here
Flat Surface Target:
Click here
Driving Adjustment:
Click here

Removal

REMOVAL CAUTION / NOTICE / HINT The necessary procedures (adjustment, calibration, initialization, or registration) that must be performed after parts are replaced during millimeter wave radar sensor assembly removal/installation are shown below...

Before Starting Driving Adjustment

BEFORE STARTING DRIVING ADJUSTMENT CAUTION / NOTICE / HINT HINT: Purpose of millimeter wave radar beam axis learning If the installation position or orientation of the millimeter wave radar sensor is changed due to it being removed and reinstalled or replaced with a new one, or due to the front bumper or radiator grille being replaced, it is necessary for the millimeter wave radar sensor to learn the driving direction of the vehicle in order for each driving support system to operate correctly...

Other information:

Toyota Yaris XP210 (2020-2025) Reapir and Service Manual: Operation Check

OPERATION CHECK CHECK CUSTOMIZE PARAMETERS (a) The operation check below is based on the non-customized initial condition of the vehicle. Click here CHECK PUSH-BUTTON START FUNCTION (a) Check the push-button start function: (1) Get into the vehicle while carrying the electrical key transmitter sub-assembly with the ignition switch off, check that the key indicator display is displayed when the clutch pedal is depressed...

Toyota Yaris XP210 (2020-2025) Reapir and Service Manual: ID-BOX Calibration / Parameter Memory Failure (B279046)

DESCRIPTION When an internal malfunction occurs in the ID code box (immobiliser code ECU), the certification ECU (smart key ECU assembly) stores this DTC. DTC No. Detection Item DTC Detection Condition Trouble Area Note B279046 ID-BOX Calibration / Parameter Memory Failure An internal malfunction occurs in the ID code box (immobiliser code ECU) (EEPROM access malfunction) (1 trip detection logic*)...