Brake Fluid Level Switch

WARNING: This page is about a different car, the 2002 Dodge Intrepid, 2002 Chrysler Intrepid, 2002 Chrysler Concorde, and 2002 Chrysler 300M. However, it is still accessible from the selected car via links, so may be relevant.

The brake fluid level switch used on this vehicle's master cylinder is internal to the master cylinder fluid reservoir. See Figure . The vehicle wiring harness has a connector which plugs directly into the brake fluid reservoir. The brake fluid level switch in the brake fluid reservoir is not a repairable item. If the switch is found to be defective, the entire brake fluid reservoir must be replaced. The purpose of the brake fluid level switch is to provide the driver with early warning that brake fluid in the master cylinder is below a normal level. As the fluid drops below the designed level, the switch closes, illuminating the Red brake warning indicator lamp located in the instrument cluster. At this time, the master cylinder fluid reservoir should be checked and filled to the FULL mark with DOT 3 brake fluid. If the brake fluid level has dropped in the brake fluid reservoir, the entire brake hydraulic system should be checked for evidence of a leak.