Toyota Yaris: 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 |
| 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 |
|
| 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 |
|
| 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.
|
| 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) |
|
| 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 |
TRC does not Operate
DESCRIPTION When TRC or VSC is operating, the skid control ECU (brake actuator assembly) blinks the slip indicator light to inform the driver that slippage occurred...
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Other information:
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Fuel-Filler Lid and Cap
WARNING
When removing the fuel-filler cap, loosen the cap slightly and wait for any hissing to stop, then remove it
Fuel spray is dangerous. Fuel can burn skin and eyes and cause illness if ingested. Fuel spray is released when there is pressure in the fuel tank and the fuel-filler cap is removed too quickly.
