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 |
|
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|
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 |
READ NEXT:
Zero Point Calibration of Yaw Rate Sensor Undone (X204C)
DESCRIPTION
The airbag ECU assembly has a built-in yaw rate and acceleration
sensor.
Code
Tester Display
Measurement Item
Trouble Area
Output
Zero Point Calibration of Steering Angle Sensor Initialization Malfunction (X208A)
DESCRIPTION
Code
Tester Display
Measurement Item
Trouble Area
Output ECU
X208A
Zero Point Calibration of Steering An
TRAC does not Operate
DESCRIPTION
When TRAC or VSC is operating, the skid control ECU (brake actuator
assembly) blinks the slip indicator light to inform the driver that slippage occurred.
When in VSC off mode, or TRAC
SEE MORE:
On-vehicle Inspection
ON-VEHICLE INSPECTION CAUTION / NOTICE / HINT
CAUTION: Do not remove the reserve tank cap and air release valve while the engine and radiator assembly are still hot. Pressurized, hot engine coolant and steam may be released and cause serious burns.
PROCEDURE
1. INSPECT RADIATOR CAP SUB-ASSEMB
Roof Drip Side Finish Moulding
RemovalREMOVAL CAUTION / NOTICE / HINT COMPONENTS (REMOVAL)
Procedure Part Name Code
1 CENTER ROOF DRIP SIDE FINISH MOULDING
75556C
- - CAUTION / NOTICE / HINT
HINT:
Use the same procedure for the RH side and LH side.
The following procedu
