Look for the pin inside the trunk which stops a360 rotation, also do trunk test and note carefully which way the trunk is turning, watch display for direction. My new to me TOM had this problem with the wires twisting, found pin missing and new motor installed by matching color (red) which was incorrect and motor was turning wrong direction on cpu signal. Swapped motor leads and cleared all problems with trunk. Basically polarity reversed on the gear box motor is root of the problem.

Just swap the wires on the motor it's self, un solder the two wires, swap them and resolder to the motor. I will look up a picture for the pin. Replace the opto interpreter so you can make sure it is in proper position with relation to the trunk and opto board. The motor stop part is number A-19933,marcos has a picture of it. Under the test menu is test T 16 which allows a test of the trunk rotation.

Pictures of motor stop pin.DSCN4394.JPGDSCN4393.JPG

The "metal tube" is part of the gear box assembly, it turns the trunk.

I do not see anything which looks to be cut off. There are a lot of TOM motor/gearbox pictures on the web, check them out. Do you have a manual for TOM. On page 1-50 there is a picture of trunk assembly and page 2-24 a picture with part numbers.

If you have the stop collar, take it with you to a hardware store for a tight fitting replacement pin such as a spring pin..

Marcos has the collar and pin, they call it a roll pin. Check out the picture and you can see what's needed. If you have the trunk assembly out some pictures would help to see what's incorrect or missing.

Good to hear, the game will play like it should now, CPU no longer confused.