BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS  VEHICLE STABILITY CONTROL SYSTEM  C1210  Zero Point Calibration of Yaw Rate Sensor Undone  C1336  Zero Point Calibration of Acceleration Sensor Undone  


DESCRIPTION

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

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

HINT:

If there is a malfunction in the bus lines between the yaw rate and acceleration sensor (airbag ECU assembly) and the CAN communication system, DTC U0124 (Lost Communication with Lateral Acceleration Sensor Module) is output. When DTC U0124 is output together with C1210 and/or C1336, inspect and repair the trouble areas indicated by U0124 first.

This DTCs are also output when the calibration has not been completed.


DTC No. Detection Item DTC Detection Condition Trouble Area
C1210 Zero Point Calibration of Yaw Rate Sensor Undone Zero point calibration of yaw rate sensor undone.
·

Sensor installation

·

Yaw rate sensor (airbag ECU assembly)

·

Skid control ECU (brake actuator assembly)


C1336 Zero Point Calibration of Acceleration Sensor Undone Zero point calibration of acceleration sensor undone.
·

Sensor installation

·

Acceleration sensor (airbag ECU assembly)

·

Skid control ECU (brake actuator assembly)



CAUTION / NOTICE / HINT

NOTICE:
·

When replacing the skid control ECU (brake actuator assembly) or yaw rate and acceleration sensor (airbag ECU assembly), perform zero point calibration.

Click hereBrake>BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS>VEHICLE STABILITY CONTROL SYSTEM>CALIBRATION

·

When replacing the yaw rate and acceleration sensor (airbag ECU assembly), perform deceleration sensor zero point calibration and CVT oil pressure calibration.

Click hereDrivetrain>K313 CVT>CONTINUOUSLY VARIABLE TRANSAXLE SYSTEM>INITIALIZATION



HINT:

When U0124 is output together with C1210 and/or C1336, inspect and repair the trouble areas indicated by U0124 first.

Click hereBrake>BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS>VEHICLE STABILITY CONTROL SYSTEM>U0073


PROCEDURE

1.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>VEHICLE STABILITY CONTROL SYSTEM>CALIBRATION

Chassis > ABS/VSC/TRC > Utility
Tester Display
Test Mode
50005 105 166

Result:
Proceed to
NEXT



NEXT

2.PERFORM TEST MODE INSPECTION (SIGNAL CHECK)
2.PERFORM TEST MODE INSPECTION (SIGNAL CHECK)
a.

Turn the engine switch off.


b.

Perform the sensor check in Test Mode Procedure.

Click hereBrake>BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS>VEHICLE STABILITY CONTROL SYSTEM>TEST MODE PROCEDURE

Chassis > ABS/VSC/TRC > Utility
Tester Display
Signal Check
50005 105 3
OK:

All Test Mode DTCs are cleared.



Result:
Proceed to
OK
NG



OK

END

NG

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

Turn the engine 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

4.READ VALUE USING GTS (YAW RATE AND ACCELERATION SENSOR)

NG

INSTALL AIRBAG ECU ASSEMBLY CORRECTLY

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


4.READ VALUE USING GTS (YAW RATE AND ACCELERATION SENSOR)
a.

Connect the GTS to the DLC3.


b.

Turn the engine switch on (IG).


c.

Select the Data List using the GTS.

Click hereBrake>BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS>VEHICLE STABILITY CONTROL SYSTEM>DATA LIST / ACTIVE TEST

Chassis > ABS/VSC/TRC > Data List
Tester Display Measurement Item Range Normal Condition Diagnostic Note
Deceleration Sensor Acceleration sensor reading Min.: -18.525 m/s2
Max.: 18.387 m/s2 		- During deceleration/acceleration: Changes continuously
Deceleration Sensor2 Acceleration sensor 2 reading Min.: -18.525 m/s2
Max.: 18.387 m/s2 		- During deceleration/acceleration: Changes continuously
Yaw Rate Sensor 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 > ABS/VSC/TRC > Data List
Tester Display
Deceleration Sensor
Deceleration Sensor2
Yaw Rate Sensor
50003 105 14,15,24

d.

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

OK:

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


NOTICE:

Check the yaw rate and acceleration sensor signal after replacement.

Click hereBrake>BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS>VEHICLE STABILITY CONTROL SYSTEM>TEST MODE PROCEDURE


HINT:

If troubleshooting has been carried out according to Problem Symptoms Table, refer back to the table and proceed to the next step before replacing parts.

Click hereBrake>BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS>VEHICLE STABILITY CONTROL SYSTEM>PROBLEM SYMPTOMS TABLE



Result:
Proceed to
OK
NG



OK

REPLACE BRAKE ACTUATOR ASSEMBLY

Click hereBrake>BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS>BRAKE ACTUATOR>REMOVAL


NG

REPLACE AIRBAG ECU ASSEMBLY

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