The brake cylinder connects to both front and rear brake systems. The front and rear brakes are connected though a diagonal fluid distribution system. any more questions email me at philip.dharamraj@hotmail.com
This is a sign that you need to have the brakes inspected, soon. Worn brakes causes the brake fluid reservoir level to drop causing the brake and abs lights to come on.
in da brake fliud reservoir
First be sure the parking brake is fully released, then if the light is still on and the reservoir is now full, you have air in the system and probably should have the brakes inspected because you shouldn't have had an empty reservoir in the first place.
Check the brake fluid reservoir, it may be low on brake fluid indicating it is time to have the brakes inspected.
Open brake fluid reservoir for the brakes - make sure it is full of brake fluid - put lid back on reservoir then pump the brakes then hold the brakes on - have someone open the bleed screw on the brakes and let the air and oil out and close it again quickly and repeat until the air bubbles stop in the brake fluid, also checking to make sure you do not run out of brake fluid before you finish bleeding the brakes.
If you have power brakes look where the large hose that goes to the brake booster connects to the engine and that is your main vacuum source.
It's telling you the brake fluid reservoir is low and the brakes need attention.
Yes, bleeding the brakes removes air bubbles that might be left in the system, especially in the brake lines!If not done every time the brake system is worked on the brakes will be unreliable and unsafe!
It may use the brake fluid
To compensate for the wear on the brakes. As the brake pads wear down, they move closer to the rotors, and this brings the brake fluid level down slightly. Note: it is not a good idea to continually refill the brake fluid reservoir because a mechanic needs to check the level for an estimate of how much the brakes have worn. If the reservoir is full all the time it would appear that the brakes are not wearing down (which we know isn't true).
To add brake fluid in a 1990 Mazda Protege, you need to locate the brake fluid reservoir and check the levels. The reservoir is located on the master cylinder for the brakes.
It could be the brake fluid reservoir is low and is telling you that the brakes need attention.