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Home >> BMW >> 1997 >> 318is Automatic >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Shift Interlock Systems >> Operation >> Shift Lock System

Shift Lock System

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With ignition on and brake pedal depressed, an input signal is sent from brakelight switch to TCM. With shift lever in Park, an input signal from transmission range switch is sent to TCM, indicating shift lever is in Park. TCM operates shift lock solenoid allowing shift lever to be moved from Park.