Wheel Speed Sensor Frequency Error

ABS equipped vehicles have wheel speed sensors at all four wheels. The front wheel speed sensors monitor the speed of each wheel by placing a magnetic coupling next to a toothed ring mounted on the axle of each wheel. The rear wheel speed sensors monitor speed of each wheel with a magnetic coupling and a toothed ring internal to the wheel bearings. These sensors produce an AC signal that the Electronic Brake Traction Control Module (EBTCM) uses to calculate wheel speed. The signal frequency changes with the wheel speed. DTC C0245 will set when the EBTCM cannot specifically identify which wheel speed sensor is causing the malfunction, DTC C0245 will be in history and the DTC associated with the malfunctioning sensor will be set along with DTC C0245.