How it's working?
After put metal thing in connector transmission normal working, but you don't need block transmission on 4 gear.
Transmission normal shift gear 1,2,3,4,5.
The 722.5 gearbox is an old 4-speed gearbox with an electronically engaged fifth gear.
If you have a healthy transmission, and shift transmission on "D", transmission give signal to 5 gear and allow shift to 5 gear. If you have a healthy transmission and shift transmission on "4", transmission block on "4".
I had damaged shifter (1:08 on video). After put metal thing, shifter gives all the time signal to transmission "I allow shift 5 gear".
If you put metal thing, and change shifter on "4", shifter still gives signal to shift 5 gear.
If you change shifter on "3", shifter still gives signal to shift 5 gear, but transmission block on 3 gear.
If you change shifter on "2", shifter still gives signal to shift 5 gear, but transmission block on 2 gear.
![](https://s2.save4k.ru/pic/GNo0sEKgnoY/maxresdefault.jpg)