DTC    C1210/36    Zero Point Calibration of Yaw Rate Sensor Undone

DTC    C1336/98    Zero Point Calibration of Deceleration Sensor Undone

for Preparation Click here


DESCRIPTION

The skid control ECU receives signals from the yaw rate and acceleration sensor via the CAN communication system.
The yaw rate sensor has the built-in acceleration sensor and detects the vehicle's condition using 2 circuits (GL1, GL2).
If there is trouble in the bus lines between the yaw rate and acceleration sensor and the CAN communication system, the DTCs U0123/62 (yaw rate sensor communication trouble) and U0124/95 (acceleration sensor communication trouble) are output.
The DTCs are also output when the calibration has not been completed.

DTC No.
INF Code
DTC Detection Condition
Trouble Area
C1210/36
-
Yaw rate sensor zero point calibration is unfinished.
  1. Skid control ECU
  2. Zero point calibration undone
    (Perform zero point calibration and check DTC. If DTC is not output again, the sensor is normal.)
  3. Yaw rate and acceleration sensor
C1336/98
-
When either of the following is detected:
  1. The vehicle runs in the normal mode with zero point calibration undone.
  2. After the zero point has been obtained, the zero point voltage of the sensor is not between 2.38 and 2.62 V.
  1. Skid control ECU
  2. Zero point calibration undone
    (Perform zero point calibration and check DTC. If DTC is not output again, the sensor is normal.)
  3. Yaw rate and acceleration sensor

INSPECTION PROCEDURE

NOTICE:
When replacing the skid control ECU, perform initialization of the linear solenoid valve and calibration (Click here).

HINT:
When U0123/62, U0124/95 or U0126/63 is output along with C1210/36 or C1336/98, inspect and repair the trouble areas indicated by U0123/62, U0124/95 or U0126/63 first.

1.CHECK YAW RATE AND ACCELERATION SENSOR INSTALLATION

  1. Check that the yaw rate and acceleration sensor has been installed properly.

    OK:
    The sensor should be tightened to the specified torque.
    The sensor should not be tilted.



NG
INSTALL YAW RATE AND ACCELERATION SENSOR CORRECTLY
OK


2.PERFORM ZERO POINT CALIBRATION OF YAW RATE AND ACCELERATION SENSOR

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


NEXT


3.RECONFIRM DTC

  1. Clear the DTCs (Click here).

  1. Start the engine.

  1. Drive the vehicle and turn the steering wheel to the right and left at a speed of 24 mph (35 km/h) or more.

  1. Check if the same DTCs are recorded (Click here).

    Result:

    Condition
    		Proceed To
    DTCs (C1210/36 and C1336/98) are output
    		A
    DTCs (C1210/36 and C1336/98) are not output
    		B

    HINT:
    1. The DTCs are recorded because zero point calibration has not been completed.
    2. End the procedure since the same DTCs are not recorded after completion of zero point calibration.



B
END
A


4.REPLACE YAW RATE AND ACCELERATION SENSOR

  1. Replace the yaw rate and acceleration sensor.


NEXT


5.PERFORM ZERO POINT CALIBRATION OF YAW RATE AND ACCELERATION SENSOR

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


NEXT


6.RECONFIRM DTC

  1. Clear the DTCs (Click here).

  1. Start the engine.

  1. Drive the vehicle and turn the steering wheel to the right and left turn at a speed of 24 mph (35 km/h) or more.

  1. Check if the same DTCs are recorded (Click here).

    Result:

    Condition
    		Proceed To
    DTCs (C1210/36 and C1336/98) are output
    		A
    DTCs (C1210/36 and C1336/98) are not output
    		B

    HINT:
    1. The DTCs are recorded because zero point calibration has not been completed.
    2. End the procedure since the same DTCs are not recorded after completion of zero point calibration.



B
END
A

REPLACE SKID CONTROL ECU