RM35X0E _54 Brake _078667 BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS _0385049 ELECTRONICALLY CONTROLLED BRAKE SYSTEM(w/ VSC OFF Switch) C

BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS  ELECTRONICALLY CONTROLLED BRAKE SYSTEM(w/ VSC OFF Switch)  C052096  Multi-axis Acceleration Sensor Module "A" Component Internal Failure  


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

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

·

Yaw rate and acceleration sensor signal malfunction.



DTC No. Detection Item DTC Detection Condition Trouble Area
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 ECU 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 ECU assembly) installation

·

Acceleration sensor (airbag ECU assembly)



DTC Detection Conditions: C052096
Vehicle Condition
Pattern 1 Pattern 2 Pattern 3 Pattern 4 Pattern 5
Diagnosis Condition The vehicle is being driven. ○ ○ - - -
With the +BS terminal voltage between 9.6 and 16.5 V. - - ○ - -
Malfunction Status The offset of the acceleration sensor is less than -2.25 m/s2. ○ - - - -
The offset of the acceleration sensor is more than 2.25 m/s2. - ○ - - -
An acceleration sensor internal malfunction signal is received from the acceleration sensor (airbag ECU assembly). - - ○ - -
The value (Forward and rearward G) of the acceleration sensor is less than -14.6 m/s2. - - - ○ -
The value (Forward and rearward G) of the acceleration sensor is more than 14.6 m/s2. - - - - ○
Detection Time - - - 3 seconds or more. 3 seconds or more.
Number of Trips 1 trip 1 trip 1 trip 1 trip 1 trip

HINT:

DTC will be output when conditions for either of the patterns in the table above are met.


DTC Detection Conditions: C052096
Vehicle Condition
Pattern 6 Pattern 7 Pattern 8 Pattern 9
Diagnosis Condition The vehicle is stopped. ○ ○ - -
Malfunction Status The value (lateral) of the acceleration sensor is less than -7 m/s2. ○ - - -
The value (lateral) of the acceleration sensor is more than 7 m/s2. - ○ - -
The value (lateral) of the acceleration sensor is less than -14.6 m/s2. - - ○ -
The value (lateral) of the acceleration sensor is more than 14.6 m/s2. - - - ○
Detection Time 0.4 seconds or more. 0.4 seconds or more. 0.8 seconds or more. 0.8 seconds or more.
Number of Trips 1 trip 1 trip 1 trip 1 trip

HINT:

DTC will be output when conditions for either of the patterns in the table above are met.


CAUTION / NOTICE / HINT

NOTICE:

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 (w/ VSC OFF Switch)>UTILITY


PROCEDURE

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

Connect the GTS to the DLC3.


b.

Turn the ignition switch to ON.


c.

Enter the following menus: Chassis / Brake / Trouble Codes.


d.

Select a DTC to display the Freeze Frame Data.


e.

Read the freeze frame data of DTC C052096.

Chassis > Brake
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 > DTC(C052096) > Freeze Frame Data
Tester Display
Lateral G
Forward and Rearward G
50040 435 25,26 C052096

Result:
Result Proceed to
The value of Lateral G or Forward and rearward G is less than -14.6 m/s2 or more than 14.6 m/s2. A
Other than above. B



A

REPLACE AIRBAG ECU ASSEMBLY

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


B

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

Connect the GTS to the DLC3.


b.

Turn the ignition switch to ON.


c.

Enter the following menus: Chassis / Brake / Trouble Codes.


d.

Select a DTC to display the Freeze Frame Data.


e.

Read the freeze frame data of DTC C052096.

Chassis > Brake
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 (vehicle speed used for each control) 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 > 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 (0 mph) and the value of Lateral G is less than -7 m/s2 or more than 7 m/s2. A
Other than above. B



A

REPLACE AIRBAG ECU ASSEMBLY

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


B

3.CHECK AIRBAG ECU ASSEMBLY INSTALLATION