Mercedes CLA 118 Tow Bar Problem

I have installed a Tow Bar on my Vehicle. The problem is, that nothing happens when I actuate the switch. I then noticed that the control unit indicates the Tow Bar has not been initialized (Image Initialize).

But i can´t initialize ,upon checking the actual values, I saw that the Tow Bar is listed as "unlocked"!?
However, it *is* locked.
I then proceeded to measure the wiring.
Measuring between (Image Schematic)Sens_GND and Sen_2 (Pins 5 and 7): Pin 5 shows continuity, but Pin 7 does not. I tried grounding both pins, but the status display in the actual values did not change not even when I actuated the switch.(Image Values)

When the Tow Bar is locked. Witch SEN2 Pin 5 & 7 has continuity.

Initial startup was not performed.

Initial startup was not performed.

Have you read my Post carefuly!? It doenst work because the restriciton Tow bar is locked is not complete

Read second time - same solution

Read second time - same solution

Do you see in the Picture?
But i found the Failure. It is mechaniclly blocked.

I plug off the Motor. What does the Shaft Do?

So i fixt it with WD40 

Another Question.: Has anyone a Backup of Coding from the Tm205 please!?

So i fixt it with WD40 

Another Question.: Has anyone a Backup of Coding from the Tm205 please!?

I have, write pm for which car do you need it

So i fixt it with WD40 

Another Question.: Has anyone a Backup of Coding from the Tm205 please!?

I have, write pm for which car do you need it

That works for me. Perfect Thanks