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Home >> Ford >> 2023 >> Expedition SSV, 4WD >> Repair and Diagnosis (Single Page) >> Transmission >> Transmission Control Systems >> Automatic Transmission External Controls >> Description And Operation >> External Controls - System Operation and Component Description >> Component Description >> GSM
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Component Description: GSM

The GSM has Hall-effect sensors that are used as inputs to indicate the lever has been moved. When P is selected above 5 mph (8 km/h) N is provided along with a message in the IPC. The Brake Transmission Shift Interlock (BTSI) CAN signal is used for normal function to shift from P.