Toyota Yaris: Vehicle Stability Control System / Zero Point Calibration of Steering Angle Sensor Not Acquired (X20D8)

Toyota Yaris XP210 (2020-2024) Reapir and Service Manual / Brake / Brake Control / Dynamic Control Systems / Vehicle Stability Control System / Zero Point Calibration of Steering Angle Sensor Not Acquired (X20D8)

DESCRIPTION

Code

Tester Display

Measurement Item

Trouble Area

RoB Output from

X20D8

Zero Point Calibration of Steering Angle Sensor Not Acquired

History of being unable to obtain the steering angle zero point

  • Sensor installation
  • Yaw rate and acceleration sensor (airbag sensor assembly)

Brake

CAUTION / NOTICE / HINT

NOTICE:

  • This Vehicle Control History (RoB) may be output during situations when the steering angle sensor zero point calibration temporarily cannot be acquired, such as when the stop light is stuck ON.
  • If the yaw rate and acceleration sensor (airbag sensor assembly) was replaced or reinstalled, perform "Calibration".

    Click here

PROCEDURE

1.

CHECK FOR DTCs (HEALTH CHECK)

(a) Using the GTS, perform the Health Check.

Result

Proceed to

DTCs are not output

A

DTCs are output

B

B

GO TO DIAGNOSTIC TROUBLE CODE CHART

A

2.

CHECK AIRBAG SENSOR ASSEMBLY INSTALLATION

(a) Check that the airbag sensor assembly has been installed properly.

OK:

The sensor should be tightened to the specified torque.

The sensor is not installed in a tilted position.

NG

GO TO STEP 6

OK

3.

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.

HINT:

When driving at a speed of 15 km/h or more for 1 second or more, the slip indicator light turns off.

NEXT

4.

CLEAR VEHICLE CONTROL HISTORY (RoB)

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

Chassis > Brake > Utility

Tester Display

Vehicle Control History (RoB)

NEXT

5.

CHECK VEHICLE CONTROL HISTORY (RoB)

(a) Perform a road test under the same malfunction conditions recreated based on the Freeze Frame Data or customer problem analysis.

(b) Using the GTS, check for Vehicle Control History (RoB).

Chassis > Brake > Utility

Tester Display

Vehicle Control History (RoB)

Result

Proceed to

X20D8 is not output

A

X20D8 is output

B

A

END

B

REPLACE AIRBAG SENSOR ASSEMBLY

6.

INSTALL AIRBAG SENSOR ASSEMBLY CORRECTLY

Click here

NEXT

GO TO STEP 4

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