Either the BRAKE FLUID LEVEL in the brake master cylinder in the engine
compartment is TOO LOW or the emergency ( parking ) brake is on
Its the parking brake light.
If you mean the brake light, you just have to change the bulb or bulbs.
If you mean the brake light that is on the inside of the car, the top pops off and then you can see the bulbs, if you mean the tail light, you have to open the trunk and remove the rug like covering so you can see where the bulbs go. Turn the bulb casing that is burned out and replace the bulb. Same is done for the turn signal.
That typically means that your parking brake is on. It could just be a faulty sensor if your brake isn't on.
Im not sure what you mean by RELAY brake light switch. There is 1 brake light switch on the brake pedal. Check it with an OHM meter,wires disconnected brake off should be "open" (no connection) press the pedal and should have no resistance (0 OHMS)
your red brake light could be coming on because , you could be low on brake fluid, or your brakes could be worn , you need to check both of them,be safe do not drive until you do.
The red brake light on the dash means that the brake fluid is low or the parking brake is on.
Assuming you mean the red " BRAKE " light in your dash is lit : That means that either your BRAKE FLUID LEVEL IS LOW in the brake master cylinder or your parking / emergency brake is engaged
If you mean the red " BRAKE " light in your dash is on , that means that the brake fluid level in the brake master cylinder located in your engine compartment ( on a Ford Taurus ) is LOW ( or that the parking brake is on )
if you mean the brake light on the dash... fill your brake fluid as it's probably low If you mean the brake lights outside the car, your switch is shorted and needs replacement, or you need to lift your foot off the pedal
If the brake light in your dash is on , either the BRAKE FLUID LEVEL in the brake master cylinder in your engine compartment is LOW or your parking brake is on
Do you mean the " BRAKE " light ? - when the brake fluid level is low in the brake master cylinder in the engine compartment , the " BRAKE " light will come on just like it does when the parking brake is engaged