Direct shorts

Tiny
RJHIGGINS
  • 1988 CHEVROLET VAN
  • V8

How can I find a direct short to ground

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Tuesday, March 15th, 2011 AT 1:57 AM

7 Replies

Tiny
CARADIODOC
  • EXPERT
  • 26,853 POSTS

Start by replacing the fuse with a 12 volt light bulb such as a brake light. Then you can unplug things to find which ones make the light go off or dim indicating the short is removed from the circuit.

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Tuesday, March 15th, 2011 AT 2:14 AM
Tiny
RJHIGGINS
  • MEMBER

I blow a fuse only when I turn on the headlights

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Tuesday, March 15th, 2011 AT 2:24 AM
Tiny
PROTECH1980
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  • 926 POSTS

What fuse is blowing?

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Tuesday, March 15th, 2011 AT 2:32 AM
Tiny
RJHIGGINS
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Tail lps 20 amp

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Tuesday, March 15th, 2011 AT 2:34 AM
Tiny
PROTECH1980
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  • 926 POSTS

Do you have a trailer wire harness? Check that make sure it isnt pinched or rubbing on something causing a short to ground.

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Tuesday, March 15th, 2011 AT 2:40 AM
Tiny
RJHIGGINS
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No what else could it be

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Tuesday, March 15th, 2011 AT 2:45 AM
Tiny
PROTECH1980
  • EXPERT
  • 926 POSTS

Like carradiodoc stated, your going to have to make a short checker, get yourself a wiring diagram and start unplugging bulbs etc. Circuits/ and anything on that circuit, It is a process of elimination to find a short/ It will take time and testing. Anybody can guess at it, but it is you that is going to have to do the testing. I cant locate a good diagram for you, maybe one of the other guys can find or post one.

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Tuesday, March 15th, 2011 AT 3:12 AM

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