Diagnosis And Testing - Shift Interlock System: Notes
WARNING: This page is about a different car, the 2004 Chrysler Pacifica. However, it is still accessible from the selected car via links, so may be relevant.
The following chart describes the normal operation of the Brake Transmission Shift Interlock (BTSI) system. If the "expected response" differs from the vehicle's response, then system repair and/or adjustment is necessary.
Refer to the following chart that expected shifter response, depending on ignition key/switch (Fig 1) and brake pedal positions.
If the floor shifter cannot be moved out of the PARK position, refer to SHIFTER LOCKED IN PLACE below. If the shift lever can be shifted out of PARK without the brake pedal depressed, refer to CIRCUIT TEST below.