Lexus RX (RX 350L, RX450h) 2016-2024 Repair Manual: Zero Point Calibration of Steering Angle Sensor Malfunction (X20D7)

DESCRIPTION

Code

Tester Display

Measurement Item

Trouble Area

X20D7

Zero Point Calibration of Steering Angle Sensor Malfunction

History of the steering angle sensor zero point calibration position differing from the stored value

  • Poor adjustment of the center position of the steering wheel
  • Poor adjustment of wheel alignment

CAUTION / NOTICE / HINT

NOTICE:

After performing the inspection, check and clear the vehicle control history.

PROCEDURE

1.

CHECK DTC (HEALTH CHECK)

(a) Perform the Health Check using the Techstream.

Result

Proceed to

DTCs are not output.

A

DTCs are output.

B

B

GO TO DIAGNOSTIC TROUBLE CODE CHART

A

2.

CLEAR VEHICLE CONTROL HISTORY

(a) Using the Techstream, clear the Vehicle Control History.

Chassis > Brake/EPB > Utility

Tester Display

Vehicle Control History (RoB)

NEXT

3.

CLEAR ZERO POINT VALUE FOR YAW RATE AND ACCELERATION SENSOR

(a) Clear the zero point value for the yaw rate and acceleration sensor.

Click here

Chassis > Brake/EPB > Utility

Tester Display

Reset Memory

NEXT

4.

PERFORM ZERO POINT CALIBRATION OF YAW RATE AND ACCELERATION SENSOR

(a) Perform zero point calibration of the yaw rate and acceleration sensor.

Click here

Chassis > Brake/EPB > Utility

Tester Display

Calibration

NEXT

5.

CHECK 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.

(b) Drive the vehicle at 15 km/h (9 mph) or more for at least 60 seconds.

(c) Check that the centered position of the steering wheel is correctly set while driving straight ahead.

OK:

The steering wheel is centered correctly.

NG

GO TO STEP 8

OK

6.

INSPECT STEERING SYSTEM

(a) Perform the steering system on-vehicle inspection.

Click here

OK:

Normal.

OK

USE SIMULATION METHOD TO CHECK

NG

7.

REPAIR OR REPLACE MALFUNCTIONING PART

NEXT

GO TO STEP 9

8.

ADJUST WHEEL ALIGNMENT

(a) Adjust the alignment (toe) of the wheels.

for Front: Click here

for Rear: Click here

NEXT

9.

CLEAR VEHICLE CONTROL HISTORY

(a) Using the Techstream, clear the Vehicle Control History.

Chassis > Brake/EPB > Utility

Tester Display

Vehicle Control History (RoB)

NEXT

10.

CLEAR ZERO POINT VALUE FOR YAW RATE AND ACCELERATION SENSOR

(a) Clear the zero point value for the yaw rate and acceleration sensor.

Click here

Chassis > Brake/EPB > Utility

Tester Display

Reset Memory

NEXT

11.

PERFORM ZERO POINT CALIBRATION OF YAW RATE AND ACCELERATION SENSOR

(a) Perform zero point calibration of the yaw rate and acceleration sensor.

Click here

Chassis > Brake/EPB > Utility

Tester Display

Calibration

NEXT

12.

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.

(b) Drive the vehicle at 15 km/h (9 mph) or more for at least 60 seconds.

NEXT

13.

CHECK VEHICLE CONTROL HISTORY

(a) Based on the Freeze Frame Data and interview with the customer, attempt to reproduce the conditions when the malfunction occurred.

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

Chassis > Brake/EPB > Utility

Tester Display

Vehicle Control History (RoB)

Result

Proceed to

Vehicle Control History is not output.

A

Vehicle Control History is output.

B

A

END

B

GO TO VEHICLE CONTROL HISTORY

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