Shift Lock and Key Lock

Fig.A:

Shift lock and key lock functions (certain markets only)
Shift lock

To prevent inadvertent movement of the gear selector lever from position P, cars in certain markets are also equipped with an electrically operated shift lock function which blocks the gear selector detent pin (1) in the latch segment and locks the mechanism in the parking position (see Fig. A).
To move the lever from this position, the ignition must be switched on and the brake pedal depressed.
Switching on the ignition while depressing the brake pedal activates a solenoid (2) in the gear selector unit.
The solenoid locking pin (3) is pressed inward, enabling the release button on the lever to be pressed in the normal manner and another position to be selected (see Fig. B).

Fig.B:

Keylock and shift lock

In certain markets, these functions are complemented by yet another safety feature in the form of a key lock operated mechanically by a cable connected to the ignition switch. The function is controlled by the position of the locking plunger (4) in the ignition switch and by the position of the gear selector lever. This means that the lever must be in position P before the key can be withdrawn from the switch, also that the key must be turned to position I or II before the lever can be moved from that position. The key lock function is used only in combination with shift lock and was introduced in conjunction with the modified gear selector lever installed in models from 1993 on.

Fig.C:

The shift lock mechanism can be released to move the gear selector lever from position P if the battery is disconnected or in the event of a fault in the shift lock system. The mechanical release consists of push-button (5) marked SHIFT-LOCK OVERRIDE on the gear lever. When the button is depressed, the solenoid locking pin (3) is released, enabling the lever to be moved from position P (In earlier models, the mechanical release was located under the gear lever brush beside the text SHIFT LOCK RELEASE.)

Note!
On cars with the key lock feature, the ignition key must first be turned to position I or II.

As long as the fault persists, the mechanical release and key must be used each time the lever is to be moved from position P.
The electrical circuit between the brake light switch and solenoid incorporates a microswitch (6), which closes the circuit only in position P to prevent operation of the solenoid when the driver operates the brake pedal while driving.





Start inhibitor function

The gear selector lever is provided with a start inhibit function to prevent starting of the engine while a gear is selected.
This feature ensures that the engine can be started only in position P or N, preventing the vehicle from moving accidentally at the instant of starting.