Hello,
It sounds like the anti-lock brake controller is out which the speedometer signal runs through. here is the location so you can change it out.
Here is a video of the job being done on a similar car with instructions in the diagrams below:
https://youtu.be/lUotkKXG9dY
Check out the diagrams (below). Please let us know what happens.
Images (Click to make bigger)
Sunday, December 1st, 2019 AT 1:55 PM