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Home >> Chevrolet >> 2017 >> Malibu LS >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 14 (Automatic Transmission - 9T50 (M3E) - Description And Operation) >> Description and Operation >> Electronic Component Description >> ETRS Equipped Electronic Component Description >> Transmission Park Valve Switch

Transmission Park Valve Switch

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The transmission park valve switch is a linear hall effect sensor that changes current flow based on magnetic field position relative to the sensor. The transmission control module (TCM) supplies a 9 V reference circuit to the transmission park valve switch. Sensor 1 signal circuit and sensor 2 signal circuits both toggle between 0.8V and 2V based on valve position. There are two sensors within the component to serve as a redundancy for safety.

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