AS I DESCRIBED BEFORE I HAVE A 1993 CROWN VIC WITH A DIGITAL DASH AND IT IS OUT. I HAVE CHANGED THE IGNITION AND IT STILL BLOWS FUSES RIGHT AWAY. I HAVE CHANGED ALL FUSES AND THE ONES UNDER THE HOOD AS WELL. IT STILL DOES THE SAME THING. IS THERE A WAY TO FIND WHICH WIRE IS CAUSING THE SHORT. I MEAN SHORT OF TAKING OUT THE WHOLE INSTRUMENT PANEL?

I am hoping you have an Owners manual or Fuse Chart. For something like a Digital Dash it is usually grouped with other items. Look at the Fuse Chart and see what else is on the same fuse. Your Radio may be grouped with the Dash, Autolamp timer, to name a few.

You can unplug the other items grouped on the problem fuse. Then when the fuse does not blow, you have found the bad part. Sometimes doorjam contacts short out, but they would be fused as a Dome light.

You can use an Ohmmeter to test the Fuse holder when the Battery is disconnected. The fuse is blowing because something is grounding. When you find the bad wire, the Ohmmeter should show a drop in the meter. Remember to disable anything in the same group used by the fuse. When you do, there should be nothing to ground out and the meter should drop to zero.

I have pulled a Digital dash out of a Mark 7. That was almost a 2 hour job, but there was nothing to test but a simple plug-in.