System Circuit Description

SYSTEM OUTLINE

When the ignition SW is turned to ACC position the current from the CIG-RADIO fuse flows to terminal 1 of the shift lock ECU. in the ON position, the current from the gauge fuse flows to terminal 3 of the ECU.

1. Shift Lock Mechanism

With the ignition SW ON. when a signal that the brake pedal is depressed (stop light SW ON) and a signal that the shift lever is put in "p" range (continuity between p1 and p of the shift position SW) is input to the ECU. the computer operates and current flows from terminal 3 of the ECU terminal SL+ of the shift lock solenoid -> solenoid terminal SL- terminal 5 of the ECU ground. this causes the shift lock solenoid to turn ON (plate stopper disengages) and the shift lever can shift into other range than the "P" range.

2. Key Inter Lock Mechanism

With the ignition SW in ON or ACC position. when the shift lever is put in "P" range and continuity between P2 and P of lock control SW). the current flowing from terminal 4 of the ECU key inter lock solenoid is cut off. this causes the key inter lock solenoid to turn off (lock lever disengages from lock position) and the ignition key can be turned from ace to lock position. if the ignition is left in ACC DR ON position with the shift lever in other than "P" range. then approx. 1 hour the ECU operates to release the lock.