A wheel speed sensor is being diagnosed using the OEM (original equipment manufacturer) diagnostic scan tool. Technician A says to verify wheel speed sensor operation, compare all four wheel speed sensor outputs to vehicle speed on the data list. Technician B says the wheel's direction of rotation can be verified by looking at the wheel direction on the scan tool data list. Who is right?

ASE identifies brakes as an individual service area. The brakes service area involves these components: Hydraulic system: Components (such as the brake lines and master cylinder) that transfers power from the brake pedals to either disc or drum brakes. Mechanical Foundation System: Components (such as discs and pads or drums and shoes) that creates the friction required to stop the vehicle. Electronic system: Components that notify the driver of a failure in the brake system. In anti-lock brake (ABS) systems, electrical system components work to prevent tire skidding.