Zero Point Calibration of Acceleration Sensor Undone - Vehicle Stability Control System

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 & TRACTION actuator assembly receives signals from the yaw rate sensor (acceleration sensor) via 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 the CAN communication system, the DTCs U0123/62 (lost communication with the yaw rate sensor module) and U0124/95 (lost communication with the lateral acceleration sensor module) are output.
The DTCs are also output when the calibration has not been completed.






INSPECTION PROCEDURE
NOTICE: When replacing the ABS & TRACTION actuator assembly, perform zero point calibration.
HINT: When U0123/62, U0124/95 or U0126/63 is output along with C1210/36 or C1336/39, inspect and repair the trouble areas indicated by U0123/62, U0124/95 or U0126/63 first.

PROCEDURE

1. CHECK SENSOR INSTALLATION
(a) 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 SENSOR CORRECTLY
OK -- Continue to next step.
2. PERFORM ZERO POINT CALIBRATION OF YAW RATE SENSOR AND ACCELERATION SENSOR
(a) Perform the zero point calibration of the yaw rate sensor and acceleration sensor .
NEXT -- Continue to next step.
3. RECONFIRM DTC
(a) Clear the DTC.
(b) Start the engine.
(c) Drive the vehicle and turn the steering wheel to the right and left at a speed of 24 mph (38 km/h) or more.
(d) Check that the same DTCs are recorded.
HINT: Reinstall the sensors, connectors, etc. and restore the vehicle to its prior conditions before rechecking for DTCs.

Result:





HINT:
- The DTCs are recorded because zero point calibration has not been completed.
- End the procedure since the same DTCs are not recorded after completion of zero point calibration.
- If troubleshooting has been carried out according to the PROBLEM SYMPTOMS TABLE, refer back to the table and proceed to the next step.

B -- REPLACE ABS & TRACTION ACTUATOR ASSEMBLY
A -- END