should not affect alignment to my knowledge
pad brakes are disc brakes, it's known as changing brake pads for disc setup and changing brake shoes with drum brake setup.
Possible damaged sensor or wiring to the sensor. The pad sensor is located in the brake pads themselves and changing tires will not affect them unless damaged by tire changer
Brake pad changing is important in maintaining a car. A person lifts the car, removes the tire, brake shoe and old brake pad. Next put the new brake pad , put the brake shoe and tire back in their place, and lower the car.
Changing brakes is easy. Lift the car, remove the wheel, brake shoe and brake pad, next put in a new brake pad, replace the brake shoe and tire, then lower the car.
Changing brake pads is a simple task to maintain the car. Lift the car, remove the tire, brake shoe and the old brake pad, put in the new brake pad, replace the brake shoe, tire and lower the car.
If you are reffering to the end that connects to the brake system(pad, rotor, caliper) then it is almost always contected to the pad. Some are permanently molded into a pad, thus you would need to buy a new pad and contect the lead wire to that pad, or there is usually a place on the pad itself (including the steel backing plate that hold the pad material) where the wear sensor clips into. -Brake Engineer
Changing brakes is simple. Lift the car, remove the tire, remove the brake shoe, remove the old brake pad, replace it with a new brake pad, return the brake shoe, replace the wheel and lower the car.
Depending on the setup, the clip could be very important. Some models use the clip to keep the pad steady, while others use the clip to help hold the pad in proper alignment.
if when changing brake pads there is air in the system, improperly installed pads, the air in the lines expand increasing pressure on the pad. bleeding the brakes solves this problem.
Changing brakes is pretty simple. A person has to lift the car with a car jack, remove the tire, brake shoe, and old brake pad. Then put in the new brake pad, replace the brake shoe, put the tire back on the car, and lower the car.
Possible that the rear sensors are broken.