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Home >> Buick >> 1973 >> Centurion 2D Convertible >> Repair and Diagnosis >> Brakes >> Electronic Brake Control Systems - Max-TRAC Traction Control System >> Description >> Front Wheel Speed Sensor and Speed Disc

Front Wheel Speed Sensor and Speed Disc

An electromagnetic device which, in conjunction with rotating speed disc produces AC voltage and converts front wheel speed into an electrical signal frequency for transmission to controller. Speed disc is mounted on hub of left front wheel and sensor mounted at predetermined distance from disc.

NOTE: New sensor must be installed with felt tip against disc. If original sensor is reinstalled (felt tip missing), adjust air gap to.050".
Fig 1: Sensor Alignment
G09333115Courtesy of GENERAL MOTORS COMPANY