BRC

C1113, C1145, C1146 YAW RATE/SIDE/DECEL G SENSOR

Description

Yaw rate/side/decel G sensor detects yaw rate/side/decel G affecting the vehicle, and transmits the data to the
ABS actuator and electric unit (control unit) as an analog voltage signal.


DTC Logic


DTC DETECTION LOGIC







DTC CONFIRMATION PROCEDURE


1. PRECONDITIONING

If "DTC CONFIRMATION PROCEDURE" has been previously conducted, always turn the ignition switch OFF
and wait at least 10 seconds before conducting the next test.
- GO TO 2.

2. DTC REPRODUCTION PROCEDURE

1.Turn the ignition switch OFF to ON.
2.Perform self-diagnosis for "ABS" with CONSULT.
Is DTC "C1113", "C1145" or "C1146" detected?
YES- Proceed to diagnosis procedure. .
NO- INSPECTION END


Diagnosis Procedure


1. CHECK CONNECTOR

1.Turn the ignition switch OFF.
2.Disconnect ABS actuator and electric unit (control unit) harness connector.
3.Disconnect yaw rate/side/decel G sensor harness connector.
4.Check terminal for deformation, disconnection, looseness, etc.
Is the inspection result normal?
YES- GO TO 2.
NO- Replace or repair error-detected parts.

2. CHECK YAW RATE/SIDE/DECEL G SENSOR HARNESS

Check continuity between yaw rate/side/decel G sensor harness connector and ABS actuator and electric unit (control unit) harness connector.





Is the inspection result normal?
YES- GO TO 3.
NO- Repair or replace error-detected parts.

3. CHECK YAW RATE/SIDE/DECEL G SENSOR HARNESS CONNECTOR

Check continuity between yaw rate/side/decel G sensor harness connector and ground.





Is the inspection result normal?
YES- GO TO 4.
NO- Repair or replace error-detected parts.

4. CHECK YAW RATE/SIDE/DECEL G SENSOR 1

1.Connect yaw rate/side/decel G sensor harness connector.
2.Connect ABS actuator and electric unit (control unit) harness connector.
3.Turn the ignition switch ON.

CAUTION:
Never start the engine.





4.Move yaw rate/side/decel G sensor as shown in the figure to check the output of before and after moving the sensor with the
"ABS", "DATA MONITOR" and "DECEL G-SEN" in order with
CONSULT.





Is the inspection result normal?
YES- Replace yaw rate/side/decel G sensor. Refer to BRC182, "Exploded View".
NO- GO TO 5.

5. CHECK YAW RATE/SIDE/DECEL G SENSOR 2

1.Turn the ignition switch OFF.
2.Connect following terminals between yaw rate/side/decel G sensor and harness connector.





3.Turn the ignition switch ON.
4.Check voltage between yaw rate/side/decel G sensor harness connector.

CAUTION:
Never short out the terminals while measuring voltages.





Is the inspection result normal?
YES- Replace ABS actuator end electric unit (control unit) VDC/TCS/ABS.
NO- Replace yaw rate/side/decel G sensor. Exploded View.


Special Repair Requirement


1. ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL POSITION

Always perform the neutral position adjustment for the steering angle sensor, when replacing the ABS actuator and electric unit (control unit) or steering angle sensor and removing steering angle sensor. Refer to BRC76, "ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL POSITION : Special Repair Requirement".
- END