Question about 2003 Chevrolet Silverado 1500

1 Answer

Brake lights dont work

Replaceds lights
cab brake lights work
hazzards work
brake switch was replaced
has trailer con,but it is factory never used and has factory cap on it all fuses look good

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  • 73 Answers

Put a test light directly in the light socket see if the power is being tranfered from the fuse box to the sockets if not check for a in line fuse or a frayed wire.

Posted on Feb 26, 2009

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so then if you unplug the switch on brake pedal the brake lights stay on if so check operation of the hazzards and turn signals could be a short in the turn signal switch or flasher unit also check for pinched wires around third brake light and tail light wireing does your car have trailer hitch ? if so check the trailer plug wireing

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Brake lights run through the hazzard switch. There are known problems with this, and the multifunction switch. You may need to buy a new hazzard switch and OR the multifunction switch. Before you do that, check the pigtail that goes into the brake switch up by the fender, make sure it's not shorting out up there. Happened to me!

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I have a 97 expedition that has the factory towing pkg. I recently went to plug in my trailer that has always worked fine with this truck and no brake or turn lights but running lights. I checked the...


  1. put fuse back in (fire hazzard)
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I HAVE A 2002 JEEP WRANGLER SPORT. THE HAZZARD LIGHTS DONT WORK


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Feb 22, 2010 | 2002 Jeep Wrangler

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My break light or turn signal will not light up but when i turn the lights on in the cab for nighttime driving the lights come on but still no brake light or turn signal. I have already replaced the bulbs...


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Hooked my 2007 Sprinter camping trailer to the factory lights/brakes hook-up located below bumper of my 2005 Silverado 4x4 extended cab truck. Everything works fine except for the right trailer turn...


Is this a 4 way or 6 way connection system? If your truck is wrong, then all factory equipped trailer package harnesses would be wrong, tell your trailer guy...I don't think so.
Is this the first trailer you have hauled?
Let me know, and we will go from there.
REgards,

Mar 10, 2009 | 2005 Chevrolet Silverado

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