Shift lock override
To allow the gear selector to be moved from the Park position when there is no battery voltage, or if there is a fault in the shift-lock mechanism, it is possible to disconnect the interlock mechanism mechanically. This mechanical disconnect consists of a button (5) on the gear selector mounting, marked SHIFT-LOCK OVERRIDE. When this button is pressed, the solenoid lock pin (3) is released and the gear selector can be moved from the Park position. See figure C. Note: on cars with ignition switch interlock, the ignition key must first be turned to position I or II.
For as long as the fault persists, the mechanical disconnect must be used together with the ignition key every time the gear selector is moved from the Park position.
There is a microswitch (6) in the electrical circuit between the stop (brake) light switch and the solenoid. The micro-switch only closes the circuit in the Park position, so that the solenoid is not activated every time the driver presses the brake pedal when driving.
When the ignition is switched on and the brake pedal is pressed at the same time, a solenoid (2) is activated in the gear selector mounting. The solenoid lock pin (3) is pressed in and you can then press down the lock button on the selector in the normal way to select another gear. See figure B.
Evo točnog objašnjenja, po ovome je najvjerojatnije problem u solenoidu za blokadu mjenjača jer kad stisneš shift-lock ti ga mehanički odblokiraš.