2CarPros - Car Questions & Answers

2004 Toyota Tundra Repair Question


Topics covered: Fuse, Dimmer switch, Tail lights.
Mileage: 140,000 miles.

Asked on December 23, 2012

Toyota Tundra Fuse Problem

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
Avatar Asked by (pending member)

Answer

Replied on December 23, 2012

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.

Tiny Answered by caradiodoc (expert)
17,655 answers provided