Component Testing
WARNING: This page is about a different car, the 2008 Cadillac CTS. However, it is still accessible from the selected car via links, so may be relevant.
Brake Fluid Level Switch
- Inspect the master cylinder reservoir for the proper brake fluid level.
- If brake fluid level is low, refer to Hydraulic Brake System Diagnosis .
- Ignition OFF. Disconnect the brake fluid level switch connector. Verify that continuity does not exist between terminal A and terminal B of the brake fluid level switch.
- If there is continuity between terminal A and terminal B of the brake fluid level switch when the master cylinder reservoir is full, replace the brake fluid level indicator switch.
- Remove all of the brake fluid from the master cylinder reservoir. Verify that continuity exists between terminal A and terminal B of the brake fluid level switch.
- If there is no continuity between terminal A and terminal B of the brake fluid level switch when the master cylinder reservoir is empty, replace the brake fluid level indicator switch.