Help with Vehicles

[Strafbefehl]

Hello, I need help with vehicles, because the steering from left and right does not work!

Minecraft version: 1.12.2

command /Auto:
    trigger:
        give fire charge named "&aAuto" to player
      
on rightclick with fire charge:
    make the player ride a armor stand
 
 
command /Autos: 
    trigger:
        make the player ride a armor stand
 
 
on rightclick with armor stand:
    make the player ride a armor stand
      
 
 
on vehicle steer left:
    vehicle of player is on ground
    set yaw of player to -0.1
on vehicle steer right:
    vehicle of player is on ground
    set yaw of player to +0.1
on vehicle steer forward:
    vehicle of player is on ground
    push vehicle of player horizontally forward at speed 1
on vehicle steer backward:
    vehicle of player is on ground
    push vehicle of player horizontally backwards at speed 0.2
  
on vehicle exit:
    if event-entity is a armor stand:
        kill event-entity

 

[Killerz1243]

I don't think you can set the yaw of the player directly, instead you would have to teleport them to rotate them