Disclosed examples include measuring, via a sensor, a brake torque generated by a brake of a braking system; providing a first current to a motor to actuate the brake, the first current to cause the measured brake torque to satisfy a target brake torque; determining a residual value based on the first current and a second current of the motor associated with a first gap between a friction material and a braking surface of the brake; detecting a condition of the braking system based on the residual value and a difference between the second current and a third current of the motor, the third current associated with a second gap between the friction material and the braking surface; and outputting an indication representative of the detected condition.
