Zero Point Calibration of Acceleration Sensor

BRAKE CONTROL: VEHICLE STABILITY CONTROL SYSTEM: C1210/36: Zero Point Calibration of Yaw Rate Sensor Undone

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

DTC C1336/39 - Zero Point Calibration of Acceleration Sensor Undone

DESCRIPTION

The ABS and TRACTION actuator receives signals from the yaw rate and acceleration sensor via the CAN communication system.
The yaw rate sensor has the built-in acceleration sensor.
If there is trouble in the bus lines between the yaw rate and acceleration sensor and CAN communication system, DTC U0123/62 (yaw rate sensor communication trouble) and U0124/95 (acceleration sensor communication trouble) are output.
These DTCs are also output when the calibration has not been completed.





INSPECTION PROCEDURE

NOTE: When replacing the yaw rate sensor, perform zero point calibration (Programming and Relearning).

HINT: When U0073/94, U0123/62, U0124/95 or U0126/63 is output accompanied with C1210/36 or C1336/39, inspect and repair the trouble areas indicated by U0073/94, U0123/62, U0124/95 or U0126/63 first.

PROCEDURE

1. CHECK YAW RATE SENSOR INSTALLATION
(a) Check that the yaw rate 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 SENSOR CORRECTLY
OK -- Continue to next step.
2. PERFORM ZERO POINT CALIBRATION OF YAW RATE AND ACCELERATION SENSOR
(a) Perform the zero point calibration of the yaw rate and acceleration sensor (Programming and Relearning).
NEXT -- Continue to next step.
3. RECONFIRM DTC
(a) Clear the DTCs (Vehicle Stability Control System).
(b) Turn the ignition switch to the ON position.
(c) Are the same DTCs recorded? (Vehicle Stability Control System)

NO -- END
YES -- REPLACE YAW RATE SENSOR