Shift Lock System
WARNING: This page does not describe the selected car, but rather 30 other vehicles, including the 1994 Toyota Tercel, 1994 Toyota Supra, 1994 Toyota Pickup, 1994 Toyota Paseo, and 1994 Toyota MR2. However, it is still accessible from the selected car via links, so may be relevant.
With ignition on, when brake pedal is depressed, an input signal is sent from brakelight switch to the ECU. With shift lever in Park, an input signal from shift control switch is input to ECU, indicating shift lever is in Park. The ECU then operates shift lock solenoid, so shift lever can be moved from Park.