Brake Fluid Level Sensor/Switch: Testing and Inspection

Brake Fluid Level Switch Test

1. Disconnect the brake fluid level switch connector.

2. Check for continuity between the terminals (1) and (2) with the float in the down position and the up position.
NOTE:

- Remove the brake fluid completely from the reservoir. With the float down, there should be continuity.

- Fill the reservoir with brake fluid to the MAX (upper) level (A). With the float up, there should be no continuity.

- If both the ABS indicator and the brake system indicator come on at the same time, check the ABS or VSA system for DTC's first: ABS, VSA. Initial Inspection and Diagnostic Overview

- If the parking brake switch and fluid level switch are OK, but the brake system indicator does not function, do the input test for the daytime running lights control unit. Daytime Running Lights Control Unit Input Test (Canada models)

3. Reconnect the brake fluid level switch connector.