Shift Interlock Systems: Description
Transmission is equipped with a electronically controlled shift lock and key lock system. See Fig 1. Shift lock system prevents shift lever from being moved from Park unless brake pedal is depressed. In case of a malfunction, shift lever can be released by depressing shift lock override button, located near shift lever. Key lock system prevents ignition key from being moved from ACC to LOCK position on ignition switch unless shift lever is in Park.
The system consists of a brakelight switch, key interlock solenoid, shift lock control switch, shift lock Electronic Control Unit (ECU), shift lock solenoid and shift lock override button. See Fig 1.
NOTE:
Shift lock Electronic Control Unit is referred to as ECU.