Mariner 4WD L4-2.5L (2010)
Vehicle Speed Sensor: Description and Operation
Output Shaft Speed (OSS) Sensor
ENGINE CONTROL COMPONENTS
Output Shaft Speed (OSS) Sensor
The OSS sensor provides the PCM with information about the rotational speed of an output shaft. The PCM uses the information to control and
diagnose powertrain behavior. In some applications, the sensor is also used as the source of vehicle speed. The sensor may be physically located in
different places on the vehicle, depending upon the specific application. The design of each speed sensor is unique and depends on which powertrain
control feature uses the information that is generated.