Zero Point Calibration of Yaw Rate 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 skid control ECU receives signals from the yaw rate sensor and deceleration sensor via the CAN communication system.
The deceleration sensor is built into the yaw rate sensor.
If there is trouble in the bus lines between the yaw rate sensor and deceleration sensor and the CAN communication system, the DTCs U0123/62 (yaw rate sensor communication trouble) and U0124/95 (deceleration sensor communication trouble) are output.
These DTCs are also output when the calibration has not been completed.






WIRING DIAGRAM





INSPECTION PROCEDURE
HINT: When U0073/94, U0100/65, U0123/62, U0124/95 or U0126/63 are output accompanied by C1210/36 or C1336/39, inspect and repair the trouble areas indicated by U0073/94, U0100/65,U0123/62, U0124/95 or U0126/63 first.

PROCEDURE

1. PERFORM YAW RATE AND DECELERATION SENSOR ZERO POINT CALIBRATION
(a) Perform the zero point calibration of the yaw rate sensor and deceleration sensor Programming and Relearning.
NEXT -- Continue to next step.
2. RECONFIRM DTC
(a) Clear the DTCs Reading and Clearing Diagnostic Trouble Codes.
(b) Check if the same DTCs are recorded Reading and Clearing Diagnostic Trouble Codes.
Result:






B -- END
A -- Continue to next step.
3. CHECK YAW RATE AND DECELERATION SENSOR INSTALLATION
(a) Check that the yaw rate and deceleration sensor has been installed properly Installation.
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.
4. CHECK HARNESS AND CONNECTOR (ECU - PARK/NEUTRAL POSITION SWITCH OR PARKING BRAKE SWITCH)
(a) A/T





(1) Disconnect the skid control ECU connector.
(2) Disconnect the Park/Neutral position switch connector.
(3) Measure the resistance.
Standard resistance:





(b) M/T:





(1) Disconnect the skid control ECU connector.
(2) Disconnect the parking brake switch connector.
(3) Measure the resistance.
Standard resistance:






NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.
5. INSPECT PARK/NEUTRAL POSITION SWITCH (FOR A/T) OR PARKING BRAKE SWITCH (FOR M/T)
(a) Inspect the Park/Neutral Position (PNP) switch (for A/T models).





(1) Disconnect the PNP switch connector.
(2) Check the resistance when the transmission gear selector lever is moved to each position.
Standard resistance:





(b) Inspect the parking brake switch (for M/T models).





(1) Disconnect the parking brake switch connector.
(2) Measure the resistance.
Standard resistance:






NG -- REPLACE PARK/NEUTRAL POSITION SWITCH (FOR A/T) OR PARKING BRAKE SWITCH (FOR M/T)
OK -- Continue to next step.
6. REPLACE YAW RATE AND DECELERATION SENSOR
(a) Replace the yaw rate and deceleration sensor Removal.
NEXT -- Continue to next step.
7. PERFORM YAW RATE AND DECELERATION SENSOR ZERO POINT CALIBRATION
(a) Perform the zero point calibration of the yaw rate sensor and deceleration sensor Programming and Relearning.
NEXT -- Continue to next step.
8. RECONFIRM DTC
(a) Clear the DTCs Reading and Clearing Diagnostic Trouble Codes.
(b) Check if the same DTCs are recorded Reading and Clearing Diagnostic Trouble Codes.
Result:






B -- END
A -- REPLACE MASTER CYLINDER SOLENOID