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)  C052096  Multi-axis Acceleration Sensor Module "A" Component Internal Failure  


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.

HINT:
These DTCs may be stored if one of the following occurs:
·

Yaw rate and acceleration sensor (airbag sensor assembly) installation abnormality.

·

Yaw rate and acceleration sensor (airbag sensor assembly) signal malfunction.



DTC No. Detection Item DTC Detection Condition Trouble Area DTC Output from Priority
C052096 Multi-axis Acceleration Sensor Module "A" Component Internal Failure
·

When the vehicle is being driven, the offset of the acceleration sensor is less than -2.25 m/s2 or more than 2.25 m/s2.

·

With the +BS terminal voltage between 9.6 and 16.5 V, an acceleration sensor internal malfunction signal is received from the acceleration sensor (airbag sensor assembly).

·

The value (Forward and rearward G) of the acceleration sensor is less than -14.6 m/s2 or more than 14.6 m/s2 for 3 seconds or more.

·

When the vehicle is stopped, the value (lateral) of the acceleration sensor is less than -7 m/s2 or more than 7 m/s2 for 0.4 seconds or more.

·

The value (lateral) of the acceleration sensor is less than -14.6 m/s2 or more than 14.6 m/s2 for 0.8 seconds or more.


·

Acceleration sensor (airbag sensor assembly) installation

·

Acceleration sensor (airbag sensor assembly)


Brake/EPB A

PROCEDURE

1.CHECK FREEZE FRAME DATA (LATERAL G)
a.

Read the freeze frame data of DTC C052096.

Chassis > Brake/EPB
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
Chassis > Brake/EPB > DTC(C052096) > Freeze Frame Data
Tester Display
Lateral G
50040 435 25 C052096

Result:
Result Proceed to
The value of Lateral G is more than 14.6 m/s2, or less than -14.6 m/s2 A
None of the above conditions are met B



A

REPLACE AIRBAG SENSOR ASSEMBLY

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


B

2.CHECK FREEZE FRAME DATA (FORWARD AND REARWARD G)
2.CHECK FREEZE FRAME DATA (FORWARD AND REARWARD G)
a.

Read the freeze frame data of DTC C052096.

Chassis > Brake/EPB
Tester Display Measurement Item Range Normal Condition Diagnostic Note
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 > DTC(C052096) > Freeze Frame Data
Tester Display
Forward and Rearward G
50040 435 26 C052096

Result:
Result Proceed to
The value of Forward and Rearward G is more than 14.6 m/s2, or less than -14.6 m/s2 A
None of the above conditions are met B



A

REPLACE AIRBAG SENSOR ASSEMBLY

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


B

3.CHECK FREEZE FRAME DATA (LATERAL G AND VEHICLE SPEED)
3.CHECK FREEZE FRAME DATA (LATERAL G AND VEHICLE SPEED)
a.

Read the freeze frame data of DTC C052096.

Chassis > Brake/EPB
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
Vehicle Speed Vehicle speed Min.: 0.0 km/h (0 mph), Max.: 6553.5 km/h (4072 mph) Vehicle stopped: 0.0 km/h (0.0 mph) When driving at constant speed: No large fluctuations
Chassis > Brake/EPB > DTC(C052096) > Freeze Frame Data
Tester Display
Lateral G
Vehicle Speed
50040 435 25,51 C052096

Result:
Result Proceed to
The value of Vehicle speed is 0 km/h and the value of Lateral G is less than -7 m/s2 or more than 7 m/s2. A
Other than above. B


HINT:

0 km/h = 0 mph



A

REPLACE AIRBAG SENSOR ASSEMBLY

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


B

4.CHECK AIRBAG SENSOR ASSEMBLY INSTALLATION
4.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

REPLACE AIRBAG SENSOR ASSEMBLY

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


NG

INSTALL AIRBAG SENSOR ASSEMBLY CORRECTLY

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