RM36D0EC _54 Brake _083077 BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS _0402316 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 ECU 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 ECU assembly) via CAN communication.

HINT:

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


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

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

Acceleration sensor (airbag ECU assembly) installation

·

Acceleration sensor (airbag ECU assembly)

·

Skid control ECU (brake actuator assembly)


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

Yaw rate sensor (airbag ECU assembly) installation

·

Yaw rate sensor (airbag ECU assembly)

·

Skid control ECU (brake actuator assembly)



CAUTION / NOTICE / HINT

NOTICE:
·

After replacing the skid control ECU (brake actuator assembly), perform acceleration sensor zero point calibration and store system information memorization.

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

·

After replacing or reinstalling the yaw rate and acceleration sensor (airbag ECU assembly), perform acceleration sensor zero point calibration and store system information memorization after performing "Reset Memory".

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



PROCEDURE

1.PERFORM ACCELERATION SENSOR ZERO POINT CALIBRATION
a.

Connect the GTS to the DLC3.


b.

Turn the ignition switch to ON.


c.

Enter the following menus: Chassis / Brake/EPB / Utility / Reset Memory.


d.

Clear the zero point calibration data and system information.

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

e.

Perform acceleration sensor zero point calibration and store system information memorization.

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

2.RECONFIRM DTC
2.RECONFIRM DTC
a.

Connect the GTS to the DLC3.


b.

Turn the ignition switch to ON.


c.

Operate the GTS to clear the codes. Enter the following menus: Chassis / Brake/EPB / Trouble Codes.

Chassis > Brake/EPB > Clear DTCs
50002 435

d.

Press the DTC clear button.


e.

Turn the ignition switch off.


f.

Turn the ignition switch to ON.


g.

Read the DTCs following the prompts on the GTS. Enter the following menus: Chassis / Brake/EPB / Trouble Codes.

Chassis > Brake/EPB > Trouble Codes
50001 435

h.

Check if the same DTC is output.


Result:
Result Proceed to
C051D54 is not output A
C051D54 is output B



A

END

B

3.CHECK AIRBAG ECU ASSEMBLY
3.CHECK AIRBAG ECU ASSEMBLY
a.

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

4.READ VALUE USING GTS (ACCELERATION SENSOR)

NG

INSTALL AIRBAG ECU ASSEMBLY

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


4.READ VALUE USING GTS (ACCELERATION SENSOR)
a.

Connect the GTS to the DLC3.


b.

Turn the ignition switch to ON.


c.

Enter the following menus: Chassis / Brake/EPB / Data List.

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

d.

Check the acceleration sensor (airbag ECU assembly) output value displayed on the GTS.

OK:

The 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