Toyota Corolla Cross: Yaw Rate Sensor Wrong Installation (X0456)
DESCRIPTION
The airbag ECU 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 |
|
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 | .gif)
|
GO TO DIAGNOSTIC TROUBLE CODE CHART |
|
.gif)
|
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 |
- |
|
Tester Display |
|---|
|
Yaw Rate Sensor Value |
|
Result |
Proceed to |
|---|---|
|
NG (The yaw rate sensor (airbag ECU assembly) output value is 0°/s when the vehicle is stationary, but the value fluctuates when turning.) |
A |
|
NG (The yaw rate sensor (airbag ECU assembly) output value is not 0°/s when the vehicle is stationary.) |
B |
|
OK |
C |
| B |
|
REPLACE AIRBAG SENSOR ASSEMBLY |
| C |
|
USE SIMULATION METHOD TO CHECK |
|
|
3. |
CHECK AIRBAG ECU ASSEMBLY INSTALLATION |
(a) Check that the yaw rate and acceleration sensor (airbag ECU assembly) has been installed properly.
Click here .gif)
OK:
The yaw rate and acceleration sensor (airbag ECU assembly) is tightened to the specified torque.
The yaw rate and acceleration sensor (airbag ECU assembly) is not installed in a tilted position.
| NG |
|
INSTALL AIRBAG ECU ASSEMBLY CORRECTLY |
|
|
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) |
|
|
5. |
PERFORM ZERO POINT CALIBRATION OF STEERING SENSOR |
(a) Drive the vehicle straight ahead at 35 km/h (22 mph) or more for at least 5 seconds.
| NEXT |
|
END |
