Hydraulic handbrake with stock rear brakes

[Dino86]

Thanks for All replies.
@boedtsie and fax: Thanks for the link I will have a look. I was told toyota ran out of stock.
@assassin: yes it's lined up. I also followed the explanation from your link already but no change.
@totta: mine is a separate handbrake. No DIY on the original lever. I extended the lever to the Max lengte already.