Ignition Lock: Description and Operation

SHIFT INTERLOCK SYSTEM
The car is equipped with the following devices to prevent inadvertent shifting:
- A/T selector with shift lock.
- Key cylinder with interlocked ignition key.






CAUTION:
All SRS wire harnesses are covered with yellow insulation. Before you disconnect any part of an SRS wire harness, disconnect the airbag connectors.

Whenever the ignition switch is ON, or has been turned OFF for less than three minutes, be careful not to bump the SRS unit; the airbags could accidentally deploy and cause damage or injuries.

For additional precautions, refer to SRS Service Precautions.








Shift Lock System
The shift lock system prevents the shift lever from moving to [R] or [D4] from the [P] position unless the brake pedal is depressed and the accelerator is in its rest position.

NOTE:
- The shift lever cannot be shifted when the brake pedal and the accelerator are depressed at the same time.
- In case of system malfunction, the shift lever can be released by pushing a key into the release slot near the shift lever.

Battery voltage is supplied at all times from fuse 52 to the brake switch. With the ignition in ON (II) or START (III), battery voltage is supplied through fuse 25 to the shift lock solenoid.

When you push the brake pedal, battery voltage is applied through the GRN/WHT wire to the Transmission Control Module (TCM).

If, at the same time, you do not push the accelerator pedal, a low voltage signal is sent through the RED/BLK wire to the TCM. The TCM then applies voltage through the WHT/RED wire to the shift lock circuit in the interlock control unit.

If the A/T gear position switch is in the PARK position, the shift lock circuit provides ground to the shift lock solenoid. The solenoid is then energized, and the shift lever can be moved from the PARK position.







Key Interlock System:
When the shift lever is in any other position than in [P] or is not securely locked in [P] (parking pin switch is ON), a solenoid is activated, making it impossible to remove the ignition key from the ignition switch.

To be able to remove the key, the shift lever must be in [P] and must be securely locked in this position (parking pin switch must be turned OFF by the lock pin)







The shift lever is in any other than [P] and the parking pin switch is ON.







The shift lever is in [P] and the parking pin switch is OFF.

Battery voltage is supplied at all times through fuse 33 to the key interlock switch. When the key is in the ignition, battery voltage is supplied to the key interlock solenoid and the key interlock circuit in the interlock control unit.

When the A/T gear position switch is in PARK, ground is provided to the key interlock circuit. This removes ground from the interlock solenoid, the solenoid is de-energized, and the key can be removed from the ignition.