It could be because the bulb is burned out ot he wire is disconnected.
Disconnect negative battery cableTilt the steering wheel to its lowest position and remove the instrument cluster bezelRemove the instrument cluster retaining screwsPull the instrument cluster out,unplug the electrical connectors from the backside and the shift indicator from the bottom (automatic trans models) then remove the cluster from the instrument panel
You will have to remove the instrument cluster. This may be an LED that should never have failed.
If the VSS is defective replace the instrument cluster. Only on 2001 and later Elantra's have speed sensor on transaxle
On a 1999 Mercury Cougar : Overdrive is the normally allowed position ( it won't shift into overdrive until the speed is faster anyway ) If you find that the transmission is frequently shifting between overdrive and drive ( such as hilly roads ) then it is best to use the transaxle ( transmission ) control switch on the side of your gear shifter to shut off the overdrive ( O/D OFF will appear in your gauge cluster )
Look at the the vin# on the driver's door are it will have the G.V.W. If you are towing with a automatic turn-off the overdrive. most modle's it's on the end of the gear shift. Press the button and the O/D yellow light will come on at the end of the gear shift or in the instrument cluster. When you turn off the truck it will rest it self. If you tow in Overdrive you will Over heat the Tans. and Burn it up.
The gauges on the dash is the instrument cluster.
To get a 2003 F-150 Truck to start after replacing the instrument cluster the cluster will have to be re-programmed. A dealer or possibly a locksmith can reprogram an instrument cluster.
If it's an automatic; Go to subaruoutback.org, click on Forums, under General > Do-It-Yourself Illustrated Guide > Replacing Lights on the Instrument Cluster.
The instrument cluster is what houses the speedometer, and the gauges.
Remove instrument cluster in a 2003 olds aurora
Removing the instrument cluster on a Peugeot 206 is simple. You start with removing the steering wheel and then take out the dash board and then take out the instrument cluster.
If it has been switched off - the O / D - OFF light should light in the instrument cluster