Because there's a fault somewhere. If it's affecting all of the gauges, the cause is most likely electrical. Trace the wiring, check grounds and connectors for corrosion, look for broken or unshielded (exposed) wiring. But first, start with the simple things - check your fuse panel.
they dont work
check fuses with test light under dash
Probably a fuse or a loose cable. Try that first.
There is a fuse for the gauges, check it.
check the fuse under gauges
Check the fuse box. The problem is probably a burnt out tail-light switch.
It could mean: 1. Ignition is off / engine is stopped 2. Fuse of dashboard is damaged 3. Problems with wire
When the instrumental panel on a 2002 Honda Civic fails the usual cause is the dash fuse. One fuse handles most for the gauges on the dashboard, when this fuse blows nothing will work.
Start the thing...............
need more info what gauges?
my 1998 doge ram van, all my gauges are not working
Jon worked for a small countertop company called Mastercraft Woodworking in Leepsort, PA.