RM38N0EC _54 Brake _111814 BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS _0503031 ELECTRONICALLY CONTROLLED BRAKE SYSTEM(for Gasoline Model) C

BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS  ELECTRONICALLY CONTROLLED BRAKE SYSTEM(for Gasoline Model)  C051D54  Multi-axis Acceleration Sensor Module "A" Missing Calibration  C121054  Yaw Rate Sensor Missing Calibration  


DESCRIPTION

The airbag sensor assembly has a built-in yaw rate and acceleration sensor and detects the vehicle condition.

The skid control ECU (brake actuator assembly) receives signals from the yaw rate and acceleration sensor (airbag sensor assembly) via CAN communication.

The DTC is also stored when the calibration has not been completed.

DTC No. Detection Item DTC Detection Condition Trouble Area DTC Output from Priority
C051D54 Multi-axis Acceleration Sensor Module "A" Missing Calibration Zero point calibration of acceleration sensor undone.
·

Acceleration sensor (airbag sensor assembly) installation

·

Acceleration sensor (airbag sensor assembly)

·

Skid control ECU (brake actuator assembly)


Brake/EPB B
C121054 Yaw Rate Sensor Missing Calibration Zero point calibration of yaw rate sensor undone.
·

Yaw rate sensor (airbag sensor assembly) installation

·

Yaw rate sensor (airbag sensor assembly)

·

Skid control ECU (brake actuator assembly)


Brake/EPB B

PROCEDURE

1.CHECK DTC
a.

Check the details of the DTCs.

Chassis > Brake/EPB > Trouble Codes
50001 435
HINT:

If a communication error with the yaw rate and acceleration sensor (airbag sensor assembly) is detected, DTCs U012587 and U015187 are stored.

If a DTC related to the CAN communication line is output, first troubleshoot the CAN communication line.



Result:
Result Proceed to
C051D54, C121054 and U012587 are output A
C051D54, C121054 and U015187 are output B
C051D54 or C121054 is output C



A

INSPECT CAN COMMUNICATION SYSTEM

Click herePower Source / Network>NETWORKING>CAN COMMUNICATION SYSTEM (for Gasoline Model)>HOW TO PROCEED WITH TROUBLESHOOTING


B

INSPECT CAN COMMUNICATION SYSTEM

Click herePower Source / Network>NETWORKING>CAN COMMUNICATION SYSTEM (for Gasoline Model)>HOW TO PROCEED WITH TROUBLESHOOTING


C

2.PERFORM CLEAR YAW RATE AND ACCELERATION SENSOR ZERO POINT CALIBRATION DATA
2.PERFORM CLEAR YAW RATE AND ACCELERATION SENSOR ZERO POINT CALIBRATION DATA
a.

Clear the zero point calibration data and system information.

HINT:

Click hereBrake>BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS>BRAKE ACTUATOR (for Gasoline Model)>RESET MEMORY / CALIBRATION


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

Result:
Proceed to
NEXT



NEXT

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

Perform yaw rate and acceleration sensor zero point calibration and system information memorization.

HINT:

Click hereBrake>BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS>BRAKE ACTUATOR (for Gasoline Model)>RESET MEMORY / CALIBRATION


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

Result:
Proceed to
NEXT



NEXT

4.CLEAR DTC
4.CLEAR DTC

Pre-procedure1

a.

None


Procedure1

b.

Clear the DTCs.

Chassis > Brake/EPB > Clear DTCs
50002 435
Result:
Proceed to
NEXT



Post-procedure1

c.

Turn the ignition switch off.



NEXT

5.RECONFIRM DTC
5.RECONFIRM DTC

Pre-procedure1

a.

Based on the Freeze Frame Data and interview with the customer, attempt to reproduce the conditions when the malfunction occurred.


Procedure1

b.

Check if the same DTC is output.

Chassis > Brake/EPB > Trouble Codes
50001 435
Result:
Result Proceed to
C051D54 and C121054 are not output A
C051D54 or C121054 is output B



Post-procedure1

c.

None



A

END

B

6.CHECK AIRBAG SENSOR ASSEMBLY INSTALLATION
6.CHECK AIRBAG SENSOR ASSEMBLY INSTALLATION
a.

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

HINT:

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


OK:

The yaw rate and acceleration sensor (airbag sensor assembly) is tightened to the specified torque.

The yaw rate and acceleration sensor (airbag sensor assembly) is not installed in a tilted position.



Result:
Proceed to
OK
NG



OK

7.READ VALUE USING GTS (LATERAL G AND FORWARD AND REARWARD G)

NG

INSTALL AIRBAG SENSOR ASSEMBLY CORRECTLY

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


7.READ VALUE USING GTS (LATERAL G AND FORWARD AND REARWARD G)
a.

Check the yaw rate and acceleration sensor (airbag sensor assembly) 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
Chassis > Brake/EPB > Data List
Tester Display
Lateral G
Forward and Rearward G
50003 435 25,26
OK:

The yaw rate and acceleration sensor (airbag sensor 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 SENSOR ASSEMBLY

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