Shift Interlock System: Description

The Brake Transmission Shifter/Ignition Interlock (BTSI) is a cable and solenoid operated system that prevents the transmission gear shifter from being moved out of PARK without a driver in place.

Refer to the following chart that expected shifter response, depending on ignition key/switch (Fig 1) and brake pedal positions.

Fig 1: Positioning Ignition Key/Switch(1 Of 2)

Courtesy of DAIMLERCHRYSLER CORP.