Toyota Corolla Cross: 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 ECU |
|---|---|---|---|---|
|
X204C |
Zero Point Calibration of Yaw Rate Sensor Undone |
History of incomplete yaw rate sensor zero point calibration |
|
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. |
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 .gif)
|
Tester Display |
|---|
|
Reset Memory |
|
|
3. |
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 |
|
|
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. |
CHECK VEHICLE CONTROL HISTORY (RoB) |
(a) Based on the Freeze Frame Data and interview with the customer, attempt to reproduce the conditions when the malfunction occurred.
(b) Using the GTS, check for Vehicle Control History (RoB).
Chassis > Brake/EPB > Utility|
Tester Display |
|---|
|
Vehicle Control History (RoB) |
|
Result |
Proceed to |
|---|---|
|
X204C is not output |
A |
|
X204C is output |
B |
| A |
|
END |
|
|
6. |
CHECK AIRBAG ECU ASSEMBLY INSTALLATION |
(a) Turn the ignition switch off.
(b) Check that the yaw rate and acceleration sensor (airbag ECU assembly) has been installed properly.
Click here
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 |
|
|
7. |
READ VALUE USING GTS (LATERAL G, FORWARD AND REARWARD G AND YAW RATE SENSOR VALUE) |
(a) Check the yaw rate and acceleration sensor output value displayed on the GTS.
Chassis > Brake/EPB > Data List|
Tester Display |
Measurement Item |
Range |
Normal Condition |
Diagnostic Note |
|---|---|---|---|---|
|
Lateral G |
Lateral G |
Min.: -25.105 m/s2, Max.: 24.908 m/s2 |
Turning right: -25.105 to 0.000 m/s2 Turning left: 0.000 to 24.908 m/s2 |
During turning: Changes in proportion with lateral acceleration |
|
Forward and Rearward G |
Forward and rearward G |
Min.: -25.105 m/s2, Max.: 24.908 m/s2 |
During deceleration: -25.105 to 0.000 m/s2 During acceleration: 0.000 to 24.908 m/s2 |
During acceleration/deceleration: Changes in proportion with acceleration |
|
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 |
|---|
|
Lateral G |
|
Forward and Rearward G |
|
Yaw Rate Sensor Value |
OK:
The yaw rate and acceleration sensor (airbag ECU assembly) output value is normal.
| OK |
|
REPLACE BRAKE ACTUATOR ASSEMBLY |
| NG |
|
REPLACE AIRBAG ECU ASSEMBLY |
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DESCRIPTION
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SEE MORE:
Brake Switch "A" Signal Compare Failure (P057162)
DESCRIPTION This DTC is stored when the brake signal sent via direct line and the brake signal sent via CAN communication do not match.
DTC No. Detection Item
DTC Detection Condition Trouble Area
Note P057162
Brake Switch "A" Signal Compare Failure
The brake signa
Installation
INSTALLATION CAUTION / NOTICE / HINT COMPONENTS (INSTALLATION)
Procedure Part Name Code
1 CAMSHAFT TIMING VALVE ASSEMBLY (EXHAUST CAMSHAFT TIMING GEAR BOLT ASSEMBLY)
135A0B
- -
2 CAM TIMING OIL CONTROL SOLENOID ASSEMBLY
15
