Yaw Rate Sensor Wrong Installation (X0456) [08/2021 -]: Procedure

CHECK FOR DTCs (HEALTH CHECK)

Perform the Health Check using the Techstream.

Result

Result	Proceed to
DTCs are not output	A
DTCs are output	B

Result:

GO TO DIAGNOSTIC TROUBLE CODE CHART

Result:

See step 2

READ VALUE USING TECHSTREAM (YAW RATE SENSOR VALUE)

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	-

Chassis > Brake/EPB > Data List

Tester Display
Yaw Rate Sensor Value

Result

Result	Proceed to
NG (The yaw rate and acceleration 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 and acceleration sensor (airbag ECU assembly) output value is not 0°/s when the vehicle is stationary.)	B
OK	C

Result:

REPLACE AIRBAG ECU ASSEMBLY. Refer to REMOVAL [08/2021 -]

Result:

Result:

See step 3

CHECK AIRBAG ECU ASSEMBLY INSTALLATION

Check that the yaw rate and acceleration sensor (airbag ECU assembly) has been installed properly.

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.

Result

Proceed to
OK
NG

Result:

INSTALL AIRBAG ECU ASSEMBLY. Refer to INSTALLATION [08/2020 -]

Result:

See step 4

CLEAR VEHICLE CONTROL HISTORY (RoB)

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

Chassis > Brake/EPB > Utility

Tester Display
Vehicle Control History (RoB)

Result

Proceed to
NEXT

Result:

See step 5

PERFORM ZERO POINT CALIBRATION OF STEERING ANGLE SENSOR

Drive the vehicle straight ahead at 35 km/h (22 mph) or more for at least 5 seconds.

Result

Proceed to
NEXT

Result:

END