Shift Position Interlock

Battery voltage is supplied at all times from fuse 42 to the brake switch. With the ignition in ON (II) or START (III), battery voltage is supplied through fuse 15 to the shift lock solenoid. When you push the brake pedal, battery voltage is applied through the GRN/WHT wire to the Engine Control Module (ECM). If, at the same time, you do not push the accelerator pedal, a low voltage signal is sent through the PNK/BLK wire to the ECM. The ECM then applies voltage through the WHT/RED wire to the shift lock circuit in the interlock control unit. If the shift lever is in the PARK position, the shift lock circuit provides ground to the shift lock solenoid. The solenoid is then energized, and the shift lever can be moved from the PARK position.