Brake Fluid Pressure Sensor/Switch: Service and Repair

Brake Fluid Pressure Sensor Removal/Installation

NOTICE
Do not spill brake fluid on the vehicle; it may damage the paint. If brake fluid gets on the paint, wash it off immediately with water.

NOTE:

- Be careful not to damage or bend the brake lines during removal and installation.
- After removal, plug the ends of the hoses and the joints to prevent spilling brake fluid.

1. Drain the brake fluid.

2. Disconnect the 3P connector (BLU) (A) from the left front brake fluid pressure sensor (B).





3. Disconnect the 3P connector (GRY) (C) from the right front brake fluid pressure sensor (D).

4. Remove the brake lines (E) from the brake line 4-way joint (F).

5. Remove the brake line 4-way joint.

6. Remove the brake fluid pressure sensor bracket (A).






7. Remove the left (A) and right (B) front brake fluid pressure sensors from the brake line 4-way joint (C).





8. Install the parts in the reverse order of removal with new O-rings (D).

NOTE: Make sure the connector colors and the brake fluid pressure sensor locations are correct.

9. After installation, refill the brake fluid, and bleed the brake system Service and Repair.

10. Do these checks:

- Check the brake hose and line joint for leaks, and tighten if necessary.
- Check the brake hoses for interference and twisting.

11. Connect the HDS to the data link connector.

12. Press the engine start/stop button to select the ON mode.

13. Press the MAIN switch ON.

14. Clear the DTCs with the HDS.

15. Select ADAPTIVE CRUISE CONTROL (ACC) from ACC/CMBS menu, then enter FUNCTION TEST.

16. Activate BRAKE ACTUATOR 3 from the FUNCTION TEST.

NOTE: BRAKE ACTUATOR 3 operates the ACC brake in this order (pressurization-stop-pressurization-stop). It takes about 6 seconds.

17. Check for DTCs with the HDS.

- If there is a DTC, go to the indicated DTCs troubleshooting.
- If there is no DTC, the brake fluid pressure sensor replacement is complete.