New answers tagged abs
Brake (at least on my old Ford system) is just the emergency brake. If I were to guess it's more than likely a separate, unrelated issue. I would look into the E brake sensor, see if the E brake is sticking and/or see if there's slack in the E brake line. Did you find out which of the sensors/wiring harnesses is bad (ABS issue)?
Get your ABS system checked. If you want to start the procedure yourself: Jack one corner of your car up and place it on a jackstand. Remove the wheel. Look for the electrical connector of that wheel and inspect it. Disconnect it and perform an electrical test on it. First, measure the AC voltage the sensor produces when you are turning the wheel by hand (...
This has happened to me with a defective ABS sensor (front, passenger). I mistakenly gouged it while changing the wheel bearing which caused it to intermittently give false signals at lower speeds (ABS ring turning slowly = sensor misinterpreting it as stopped?). Typically faulty sensors will throw the ABS warning light, which mine eventually did.
It could also be a defective strut or shock absorber. I am having the exact same issue myself presently. When a strut is empty of fluid and gas there is no dampening effect and you are bouncing on your springs. This effect is also noticed when braking at low speeds as well as when turning. When braking with dead struts your tires have intermittent contact ...
Brake pedal pulsing is most likely ABS engaging. To disable ABS, remove the fuse for it in the fuse box that is under the hood. Do have a shop look at your ABS system if the light has been coming on. Erratic brakes are not something you would want.
I believe this is due to a warped rotor. The pulsing will be due to raised areas on the rotor pushing back against the brake pads.
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