RM36D0EC _54 Brake _083077 BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS _0402316 ELECTRONICALLY CONTROLLED BRAKE SYSTEM(for Gasoline Model) J

BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS  ELECTRONICALLY CONTROLLED BRAKE SYSTEM(for Gasoline Model)  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
·

Sensor installation

·

Yaw rate sensor (airbag ECU assembly)


Skid control ECU (brake actuator assembly)

PROCEDURE

1.CHECK DTC (HEALTH CHECK)
a.

Perform the Health Check using the GTS.


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



A

2.CLEAR ZERO POINT VALUE FOR YAW RATE AND ACCELERATION SENSOR

B

GO TO DIAGNOSTIC TROUBLE CODE CHART

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 hereBrake>BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS>ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for Gasoline Model)>UTILITY

Chassis > Brake/EPB > Utility
Tester Display
Reset Memory
50005 435 4560

Result:
Proceed to
NEXT



NEXT

3.PERFORM ZERO POINT CALIBRATION OF YAW RATE AND ACCELERATION SENSOR
3.PERFORM ZERO POINT CALIBRATION OF YAW RATE AND ACCELERATION SENSOR
a.

Perform zero point calibration of the yaw rate and acceleration sensor.

Click hereBrake>BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS>ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for Gasoline Model)>UTILITY

Chassis > Brake/EPB > Utility
Tester Display
Calibration
50005 435 4554

Result:
Proceed to
NEXT



NEXT

4.CLEAR VEHICLE CONTROL HISTORY (RoB)
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)
50005 435 55

Result:
Proceed to
NEXT



NEXT

5.CHECK 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)
50005 435 55

Result:
Result Proceed to
X204C is not output A
X204C is output B



A

END

B

6.CHECK AIRBAG ECU ASSEMBLY INSTALLATION
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 hereVehicle Interior>SUPPLEMENTAL RESTRAINT SYSTEMS>CENTER AIRBAG SENSOR ASSEMBLY>INSTALLATION

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.



Result:
Proceed to
OK
NG



OK

7.READ VALUE USING GTS (LATERAL G, FORWARD AND REARWARD G AND YAW RATE SENSOR VALUE)

NG

INSTALL AIRBAG ECU ASSEMBLY CORRECTLY

Click hereVehicle Interior>SUPPLEMENTAL RESTRAINT SYSTEMS>CENTER AIRBAG SENSOR ASSEMBLY>INSTALLATION


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 		-
Chassis > Brake/EPB > Data List
Tester Display
Lateral G
Forward and Rearward G
Yaw Rate Sensor Value
50003 435 25,26,29
OK:

The yaw rate and acceleration sensor (airbag ECU assembly) output value is normal.



Result:
Proceed to
OK
NG



OK

REPLACE BRAKE ACTUATOR ASSEMBLY

Click hereBrake>BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS>BRAKE ACTUATOR (for Gasoline Model)>REMOVAL


NG

REPLACE AIRBAG ECU ASSEMBLY

Click hereVehicle Interior>SUPPLEMENTAL RESTRAINT SYSTEMS>CENTER AIRBAG SENSOR ASSEMBLY>REMOVAL