C1167

C1166, C1167 SV SYSTEM

Description

The suction valve supplies the brake fluid from the master cylinder to the pump, when VDC/TCS is activated.


DTC Logic


DTC DETECTION LOGIC







DTC CONFIRMATION PROCEDURE


1. PRECONDITIONING

If "DTC CONFIRMATION PROCEDURE" has been previously conducted, always turn 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 ON.
2.Perform self-diagnosis for "ABS" with CONSULT.
Is DTC "C1166" or "C1167" detected?
YES- Proceed to diagnosis procedure. .
NO- INSPECTION END


Diagnosis Procedure


1. CHECK ACTUATOR RELAY POWER SUPPLY CIRCUIT

1.Turn the ignition switch ON.
2.Disconnect ABS actuator and electric unit (control unit) harness connector.
3.Check the 30A fuse (K).
4.Check the voltage between ABS actuator and electric unit (control unit) harness connector and ground.





Is the inspection result normal?
YES- GO TO 2.
NO- Repair or replace damaged parts.

2. CHECK SOLENOID, VDC SWITCH-OVER VALVE AND ACTUATOR RELAY GROUND CIRCUIT

Check the continuity between ABS actuator and electric unit (control unit) harness connector and ground.





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

3. CHECK TERMINALS AND HARNESS CONNECTORS

Check ABS actuator and electric unit (control unit) pin terminals for damage or loose connection with harness connector.
Is the inspection result normal?
YES- Replace ABS actuator and electric unit (control unit). Exploded View.
NO- Repair or replace error-detected parts.


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. Special Repair Requirement
- END