There are two types of speedometer connector 1)cable and 2)is electronic.
First one is driven by a gear mounted adjacent to the gearbox by cable,remove the cluster than disconnect the cable that goes in the speedometer wipe out with some lubrificant ,cable is long .The second one is electronic speedometer that has a tranducer you can check the tranducer by connecting the ohmmeter and check for resisitance if you got the reading between 50-120 ohms the tranducer is fine,than check electric connector located when you open the bonnet is on left side down to driveshaft.if your car got ABS system than the signal from the road speed signal is coming from the ABS sensors.Sorry for my english
Highlander28, December 2007