Brake Fluid Level Sensor/Switch: Testing and Inspection

Brake Fluid Level Switch Test

NOTE: If both the ABS/VSA indicator and the brake system indicator come on at the same time, check the VSA system DTC first Reading and Clearing Diagnostic Trouble Codes.

1. Disconnect the brake fluid level switch connector.

2. Remove the reservoir cap (A). Check that the float (B) moves up and down freely; if it does not, replace the reservoir cap assembly.





3. Check for continuity between the terminals (1) and (2) with the float in the down position (C) and in the up position (D)

- With the float up, there should be no continuity.
- With the float down, there should be continuity.

NOTE: If the parking brake switch and the brake fluid level switch are OK, but the brake system indicator does not function, do the gauge control module self-diagnostic function Initial Inspection and Diagnostic Overview.