Palio Speedo problem

[Koos le Roux]

Hi everybody. I am new on this forum and require some advice on what causes the speedo to go up to 80 kmh and stay there while driving at any speed. Can it be the sensor unit or the drive unit that goes into the gearbox?
Hope you can help.

 

[Peter Pick-Up]

Welcome!

My guess: the speedo cable.
Look at ePER on top of this page for the part number etc.