Description & Operation: Introduction

The automatic transmission shift lock control system is a safety device that prevents an inadvertent shift of the transaxle out of Park when the engine is running. The driver must press the brake pedal before moving the shift lever out of the park position. The shift lock solenoid control module controls the shift lock solenoid and the ignition key lock solenoid based on inputs from the CIG (15-amp) and ECU-IG (10-amp) fuses, the stoplamp switch and the shift lock control switch. The shift lock solenoid is energized when the ignition switch is in ACC, ON or START position and the shift lock control switch is in the Park position. The stoplamp switch is provided battery voltage from the STOP (15-amp) fuse. When the brake pedal is depressed, a brake signal is sent to the module and the solenoid is de-energized, allowing the transaxle to be shifted out of Park. The solenoid remains de-energized until the transaxle is shifted to Park. When the transaxle is shifted to Park, a signal is sent to the module through the control switch and the solenoid becomes re-energized.