Last Modified: 05-13-2024 6.11:8.1.0 Doc ID: RM1000000025DV9
Model Year Start: 2023 Model: Corolla Prod Date Range: [09/2022 -           ]
Title: BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for HV Model): Yaw Rate Sensor Wrong Installation (X0456); 2023 - 2025 MY Corolla Corolla HV [09/2022 -        ]

Yaw Rate Sensor Wrong Installation (X0456)

DESCRIPTION

The airbag sensor assembly has a built-in yaw rate and acceleration sensor.

Code

Tester Display

Measurement Item

Trouble Area

Output ECU

X0456

Yaw Rate Sensor Wrong Installation

History of yaw rate sensor (airbag ECU assembly) being installed incorrectly

  • Yaw rate sensor (airbag sensor assembly) installed improperly
  • Yaw rate sensor (airbag sensor assembly)

Skid control ECU (brake actuator assembly)

PROCEDURE

1.

CHECK DTC (HEALTH CHECK)

(a) Perform the Health Check using the GTS.

Result

Proceed to

DTCs are not output

A

DTCs are output

B

B

GO TO DIAGNOSTIC TROUBLE CODE CHART

A

2.

READ VALUE USING GTS (YAW RATE SENSOR VALUE)

(a) Check Data List item "Yaw Rate Sensor Value".

Chassis > Brake/EPB > Data List

Tester Display

Measurement Item

Range

Normal Condition

Diagnostic Note

Yaw Rate Sensor Value

Yaw rate sensor

Min.: -128°/s, Max.: 127°/s

Vehicle stopped: 0°/s

Turning right: -128 to 0°/s

Turning left: 0 to 127°/s

-

Chassis > Brake/EPB > Data List

Tester Display

Yaw Rate Sensor Value

Result

Proceed to

NG (The yaw rate sensor (airbag sensor assembly) output value is 0 °/s when the vehicle is stationary, but the value fluctuates when turning.)

A

NG (The yaw rate sensor (airbag sensor assembly) output value is not 0 °/s when the vehicle is stationary.)

B

OK

C

B

REPLACE AIRBAG SENSOR ASSEMBLY 2023 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2022 - 11/2022]; SUPPLEMENTAL RESTRAINT SYSTEMS: CENTER AIRBAG SENSOR ASSEMBLY: REMOVAL 2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [11/2022 -        ]; SUPPLEMENTAL RESTRAINT SYSTEMS: CENTER AIRBAG SENSOR ASSEMBLY: REMOVAL

C

USE SIMULATION METHOD TO CHECK

A

3.

CHECK AIRBAG SENSOR ASSEMBLY INSTALLATION

(a) Check that the yaw rate and acceleration sensor (airbag sensor assembly) has been installed properly.

Click here 2023 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2022 - 11/2022]; SUPPLEMENTAL RESTRAINT SYSTEMS: CENTER AIRBAG SENSOR ASSEMBLY: INSTALLATION 2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [11/2022 -        ]; SUPPLEMENTAL RESTRAINT SYSTEMS: CENTER AIRBAG SENSOR ASSEMBLY: INSTALLATION

OK:

The yaw rate and acceleration sensor (airbag sensor assembly) is tightened to the specified torque.

The yaw rate and acceleration sensor (airbag sensor assembly) is not installed in a tilted position.

NG

INSTALL AIRBAG SENSOR ASSEMBLY CORRECTLY 2023 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2022 - 11/2022]; SUPPLEMENTAL RESTRAINT SYSTEMS: CENTER AIRBAG SENSOR ASSEMBLY: INSTALLATION 2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [11/2022 -        ]; SUPPLEMENTAL RESTRAINT SYSTEMS: CENTER AIRBAG SENSOR ASSEMBLY: INSTALLATION

OK

4.

CLEAR VEHICLE CONTROL HISTORY (RoB)

(a) Using the GTS, clear the Vehicle Control History (RoB).

Chassis > Brake/EPB > Utility

Tester Display

Vehicle Control History (RoB)

NEXT

5.

PERFORM ZERO POINT CALIBRATION OF STEERING ANGLE SENSOR

(a) Drive the vehicle straight ahead at 35 km/h (22 mph) or more for at least 5 seconds.

NEXT

END