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Hey guys have a real nagging problem that is bugging the hell out of me. The speedo in my mb2 d14 is not working at all. I have tested the +/- wires on the speed sensor at the 3 pin plug. I am getting ground to chassis and 5 volts on the live wire. The mechanical drive in the gear box is turning ok. I have changed the sensor and it still does not work. What could be wrong ? Can anyone help ?

Maybe the problem is the speedo on the dashboard itself if you saying that you test the speed sensor on the gearbox and it works.
Or something on the wiring that goes to the dashboard.