Question about 2008 Hummer H3 Alpha
Front park lights work fine and the rear brake and signals work fine. The front and rear lights are separate circuits so I increased the fuse to a 20 amp but the passenger side comes on and not the drivers side .... And then it blows the fuse???
First mistake you make is to increase the fuse capacity to above that required. You have a short in the circuit and by putting such a large fuse in you run the very real risk of burning the wiring loom. Check the bulb sockets and check that the right bulbs are in the sockets. bulbs come in two styles. one has 2 contact points and is either for 2 filaments (stop and tail) or a earth wire (Plastic light units) and the other is a single contact that earths out through the metal base . If you have the wrong bulb in place the current will short directly across the contacts and the light will not come on and the fuse will blow. Fuses for tail lights will be 5 amp maximun
Posted on Dec 31, 2013
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Posted on Jan 02, 2017
SOURCE: front driver's side signal light
when a bulb fails on one side of the indicators the other bulb, same side, flashes faster, SO.you have just answered the question yourself,as you have replaced the bulb with a new one, the contacts for the new bulb are at fault.
Posted on Sep 11, 2010
There is most likely a short in the wire feeding power to the bulb. Start at the back of the fixture and follow the wire look close for places where the insulation is cracked or worn. Pay close attention to places where it could rub on something. If you find a bad place, tape it up and see if that fixes it. If not keep looking till you find it. When you do, you'll have to replace that segment of wire.preferably all the way to the light.
Posted on Mar 11, 2012
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