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 |
|
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 |
|
2. | CLEAR VEHICLE CONTROL HISTORY |
(a) Using the Techstream, clear the Vehicle Control History.
Chassis > Brake/EPB > Utility Tester Display |
---|
Vehicle Control History (RoB) |
|
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
Tester Display |
---|
Reset Memory |
|
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
Tester Display |
---|
Calibration |
|
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 |
|
6. | INSPECT STEERING SYSTEM |
(a) Perform the steering system on-vehicle inspection.
Click here
OK:
Normal.
OK | ![]() | USE SIMULATION METHOD TO CHECK |
|
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
|
9. | CLEAR VEHICLE CONTROL HISTORY |
(a) Using the Techstream, clear the Vehicle Control History.
Chassis > Brake/EPB > Utility Tester Display |
---|
Vehicle Control History (RoB) |
|
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
Tester Display |
---|
Reset Memory |
|
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
Tester Display |
---|
Calibration |
|
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.
|
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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