DTC    C1210    Zero Point Calibration of Yaw Rate Sensor Undone

DTC    C1336    Zero Point Calibration of Acceleration Sensor Undone

for Preparation Click here


DESCRIPTION

The skid control ECU receives signals from the yaw rate and deceleration sensor via the CAN communication system.
The yaw rate sensor has a built-in deceleration sensor and detects the vehicle condition using 2 circuits (GL1, GL2).
If there is trouble in the bus lines between the yaw rate and deceleration sensor and the CAN communication system, DTCs U0123 (malfunction in CAN communication with the yaw rate sensor) and U0124 (malfunction in CAN communication with the acceleration sensor) are output.
The DTCs are also output when the calibration has not been completed.

DTC Code
DTC Detection Condition
Trouble Area
C1210
Zero point calibration of yaw rate sensor undone.
Yaw rate and deceleration sensor
C1336
Zero point calibration of acceleration sensor undone.
Yaw rate and deceleration sensor

WIRING DIAGRAM

Refer to DTCs C1232, C1243 and C1245 (Click here).

INSPECTION PROCEDURE

NOTICE:
When replacing the brake actuator assembly or yaw rate sensor assembly, perform zero point calibration (Click here).

HINT:
When U0123, U0124 and/or U0126 is output together with C1210 and/or C1336, inspect and repair the trouble areas indicated by U0123, U0124 and/or U0126 first (Click here).
1.PERFORM ZERO POINT CALIBRATION OF YAW RATE AND DECELERATION SENSOR

  1. Perform zero point calibration of the yaw rate and deceleration sensor (Click here).


NEXT


2.PERFORM TEST MODE (SIGNAL CHECK)

  1. Turn the ignition switch off.

  1. Perform the sensor check in the Test Mode procedure (Click here).

    OK:
    All Test Mode DTCs are cleared.

    HINT:
    If troubleshooting has been carried out according to the Problem Symptoms Table, refer back to the table and proceed to the next step (Click here).


NG
Go to step 3
OK

END 

3.CHECK YAW RATE AND DECELERATION SENSOR INSTALLATION

  1. Turn the ignition switch off.

  1. Check that the yaw rate and deceleration sensor has been installed properly (Click here).

    OK:
    The sensor should be tightened to the specified torque.
    The sensor should not be installed in a tilted position.


NG
INSTALL YAW RATE AND DECELERATION SENSOR CORRECTLY (Click here)
OK


4.READ VALUE USING INTELLIGENT TESTER (YAW RATE AND DECELERATION SENSOR)

  1. Connect the intelligent tester to the DLC3.

  1. Turn the ignition switch to ON.

  1. Select the Data List mode on the intelligent tester (Click here).

    ABS/VSC/TRC: 
    Tester Display
    		Measurement Item/Range
    		Normal Condition
    		Diagnostic Note
    Deceleration Sensor
    		Deceleration sensor 1 reading / min.: -18.52 m/s2, max.: 18.39 m/s2
    		Min.: -18.52 m/s2
    Max.: 18.39 m/s2
    		Reading changes when vehicle is bounced
    Deceleration Sensor 2
    		Deceleration sensor 2 reading / min.: -18.52 m/s2, max.: 18.39 m/s2
    		Min.: -18.52 m/s2
    Max.: 18.39 m/s2
    		Reading changes when vehicle is bounced
    Yaw Rate Sensor
    		Yaw rate sensor 1 reading / min.: -128 deg/s, max.: 127 deg/s
    		Vehicle stationary: 0 deg/s
    Right turn: -128 to 0 deg/s
    Left turn: 0 to 127 deg/s
    		-

  1. Check that the yaw rate and deceleration sensor output value displayed on the intelligent tester.

    OK:
    The yaw rate and deceleration sensor output value is normal.

    NOTICE:
    Check the yaw rate and deceleration sensor signal after replacement (Click here).

    HINT:
    If troubleshooting has been carried out according to the Problem Symptoms Table, refer back to the table and proceed to the next step (Click here).


NG
REPLACE YAW RATE SENSOR ASSEMBLY (Click here)
OK

REPLACE BRAKE ACTUATOR ASSEMBLY (Click here)