Transmission Range Sensor A Circuit Range/Performance

The transmission's gear position sensor is sending confusing signals that don't match the actual gear selected, preventing the engine computer from knowing what gear you're in. This sensor tells your car's brain which gear you've selected (Park, Reverse, Drive, etc.), and when it malfunctions, the transmission may not shift properly or may shift at the wrong times. You may experience poor fuel economy, rough shifting, or the car may not start in certain gears.

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