The Vehicle Speed Sensor may be located on the transmission output shaft
housing, transfer case output shaft housing or the differential housing.
The Vehicle Speed Sensor is an input to the Power train Control Module
Body Control Module , and the Transmission Control Module . The
vehicle’s speed is required for proper ignition timing, air/fuel mixture, transmission function,
cruise control operation, anti-lock brake operation, traction control operation and the vehicles
active restraint system.
Failure Symptoms: Malfunction Indicator Light illumination, Air Bag failure light
illumination, transmission shifts incorrectly, engine surging or hesitating, speedometer
failure, speedometer intermittent failure, 4 wheel drive inactive, cruise control failure
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