Shift Interlock: Description and Operation

When the ignition SW is at ACC position, current from the CIG & RAD fuse flows to TERMINAL 1 of the shift lock ECU. When the ignition SW is at ON position, current from the ECU-IG fuse flows to TERMINAL 3 of the shift lock 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 at P position (Continuity between P1 and P of the shift lock control SW) is input to the ECU. The ECU operates and current flows from TERMINAL 3 of the ECU to TERMINAL SLS+ of the shift lock solenoid to solenoid to TERMINAL SLS- to TERMINAL 5 of the ECU to GROUND. This causes the shift lock solenoid to turn ON (Plate stopper disengages) and the shift lever can shift into other positions than the P position.

2. KEY INTERLOCK MECHANISM
With the ignition SW at ON or ACC position, when the shift lever is at P position (No continuity between P2 and P of the shift lock control SW). Current from TERMINAL 1 of the ECU to the key interlock solenoid is out OFF. This causes the key interlock solenoid to turn OFF (The lock lever disengages from lock position) and the ignition key can be turned from ACC to LOCK position.