10 AMP FUSE KEEPS BLOWING UNDER DASH FOR TAIL ...

  • Tiny
  • Anonymous
  • 2004 Toyota Tundra
  • 140,000 miles

10 amp fuse keeps blowing under dash for tail lights an running light an dash lights go out. Unplugged dimmer switch an fuse still blows

Sunday, December 23rd, 2012 AT 12:44 AM

1 Reply

  • Tiny
  • caradiodoc
  • Expert
  • 25,451 posts

The dimmer switch is for the head lights, not the tail lights. A simple trick to finding a short is to replace the blown fuse with a pair of spade terminals, then use small jumper wires to connect them to a 12 volt light bulb. A brake light bulb works well. When the circuit is live and the short is present, the bulb will be full brightness and hot so be sure it's not laying on the carpet or against a plastic door panel. Now you can unplug electrical connectors and move things around to see what makes the short go away. When it does, the bulb will get dim or go out.

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Sunday, December 23rd, 2012 AT 1:18 AM

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