mazda Workshop Repair Guides

Mazda Workshop Service and Repair Manuals

Throttle Position Sensor|Testing and Inspection > < Manual Transmission
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Throttle Position Sensor: Description and Operation
Automatic Transmission

Throttle Sensor

The Throttle Sensor is a potentiometer attached to the throttle body and splined to the throttle shaft. The potentiometer rotates with the shaft as the
throttle opens and closes.

Varying potentiometer resistance alters the reference voltage supplied by the ECU, allowing it to read throttle valve opening angle.

This input is used in ECU calculations for these outputs:

^ Fuel injection quantity and timing
^ Idle speed control
^ Purge control
^ A/C cut-off
^ Ignition timing control
^ Pressure regulator solenoid valve

Throttle Position Sensor|Testing and Inspection > < Manual Transmission