JensC2500

I would like to have a question.

I have the old disc speedometer in my 1988. Everything works except the mile counter. (Odometer)

Now I have installed an exchange instrument cluster speedometer where the odometer should work 100%.
But it doesn't work either.

Is it possible that the speedometer and the odometer get different signals?

My brake light in the instrument cluster flashes as well.
9 times means "Open Circuit to speed signal".

Anyone have any idea where my mistake is?

Thank you from Germany
Jens



the small gear I already repaired.