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 and TRACTION actuator (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's condition using 2 circuits (GL1, GL2). If there are problems in the bus lines between the yaw rate and deceleration sensor and the CAN communication system, DTCs U0123/62 (yaw rate sensor communication trouble) and U0124/95 (deceleration sensor communication trouble) are output. The DTCs are also output when the calibration has not been completed.






WIRING DIAGRAM





INSPECTION PROCEDURE
NOTE: When replacing the ABS and TRACTION actuator, perform the zero point calibration .
HINT: When DTC U0123/62, U0124/95 or U0126/63 is output together with DTC C1210/36 or C1336/39, inspect and repair trouble areas indicated by DTC 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 is tightened to the specified torque.
The sensor is not tilted.
NG -- INSTALL YAW RATE SENSOR CORRECTLY
OK -- Continue to next step.
2. PERFORM ZERO POINT CALIBRATION OF YAW RATE SENSOR
(a) Perform zero point calibration of the yaw rate and deceleration sensor .
NEXT -- Continue to next step.
3. RECONFIRM DTC
(a) Clear the DTC(s) .
(b) Start the engine.
(c) Drive the vehicle and turn the steering wheel to the right and left at a speed of 45 km/h (28 mph) or more.
(d) Check if the same DTC(s) is recorded .

Result





HINT:
- The DTC(s) is set if the zero point calibration has not been completed successfully.
- End the procedure when the same DTC(s) is not set after completion of the zero point calibration.

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