lexus Workshop Repair Guides

Lexus Workshop Service and Repair Manuals

Brake Fluid Pressure Sensor/Switch > < Brake Fluid Level Sensor/Switch|Locations|Page 4506
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Brake Fluid Level Sensor/Switch: Testing and Inspection

INSPECT BRAKE FLUID LEVEL WARNING SWITCH 

a. Inspect the continuity.

1. Remove the reservoir tank cap and strainer.
2. Disconnect the connector.
3. Check that the continuity exists between the terminals.

Float up (switch Off): No continuity

4. Use syphon, etc., to take fluid out of the reservoir tank.
5. Check that the continuity exists between the terminals.

Float down (switch on): Continuity

6. Pour the fluid back in the reservoir tank.
7. Check that the buzzer stop after about 4 to 8 seconds.

Brake Fluid Pressure Sensor/Switch > < Brake Fluid Level Sensor/Switch|Locations|Page 4506