Wheel Speed Sensor: Description and Operation

The wheel speed sensors are located at each front wheel and on the rear axle differential on Caprice, Custom Cruiser and Roadmaster models. On Eldorado, Reatta, Riviera, Seville, Toronado and Trofeo models, wheel speed sensors are located at each wheel. These sensors transmit wheel speed information to the EBCM using a small amount of AC voltage.