dodge Workshop Repair Guides

Dodge Workshop Service and Repair Manuals

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Vehicle Speed Sensor: Description and Operation

Vehicle Speed Sensor Circuit

LOCATION

The speed sensor is located in the speedometer head.

OPERATION

The vehicle speed sensor uses a magnetic reed type switch. As the speedometer cable turns, the switch turns on and off (opening and closing the
circuit). The ECU senses the speed at which this happens as the vehicle speed.

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