Shift Interlock: Testing and Inspection

Description
- The mechanical key interlock mechanism also operates as a shift lock:
With the key switch turned to ON, the selector lever cannot be shifted from P (parking) to any other position unless the brake pedal is depressed.
With the key removed, the selector lever cannot be shifted from P to any other position.
The key cannot be removed unless the selector lever is placed in P.
- The shift lock and key interlock mechanisms are controlled by the ON-OFF operation of the shift lock solenoid and by the operation of the rotator and slider located inside the key cylinder, respectively.





Shift Lock System Electrical Parts Location
*: This emergency lever insures that when battery is off ignition key cannot be removed. In the situation like this, by operating this lever, ignition key can be removed.





Wiring Diagram-SHIFT-





Shift Lock Control Unit Reference Values
SHIFT LOCK HARNESS CONNECTOR TERMINAL LAYOUT





SHIFT LOCK CONTROL UNIT INSPECTION TABLE
Data are reference values.

CAUTION: Confirm that the pointer swings only momentarily because the output time is so short. If the inspection is done with an oscilloscope, it should be observed that the power source voltage lasts for 3.5 to 10 ms.

Component Inspection
SHIFT LOCK SOLENOID





- Check operation by applying battery voltage to control device connector.





CAUTION: Be sure to apply the voltage of the correct polarity to the respective terminals. Otherwise, the part may be damaged.

DETENTION SWITCH





For Key:





- Check continuity between terminals of the control device connector.

KEY LOCK SOLENOID





Key Lock





- Check operation by applying battery voltage to key switch and key lock solenoid connector.

CAUTION: Be careful not to cause burnout of the harness.

Key Unlock





- Check operation by applying battery voltage to key switch and key lock solenoid connector.





CAUTION: Be careful not to cause burnout of the harness.

KEY SWITCH








- Check continuity between terminals of the key switch and key lock solenoid connector.

STOP LAMP SWITCH








- Check continuity between terminals of the stop lamp switch connector.
Check stop lamp switch after adjusting brake pedal.