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I need wiring schematic for box bed?

Tiny
KARLA ZEN ART
  • MEMBER
  • 1997 GMC C1500
  • 100,000 MILES
I have some loose wiring down by the spare tire on the main rail on the left-hand side of the truck box and I’m not getting power to my rear. In need of schematics.
Thank you.

GMC 1997 k1500 5.7 Lt.
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Saturday, April 1st, 2023 AT 3:15 AM

5 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,700 POSTS
Hi,

If it is an aftermarket box on the rear, the wiring may have been changed by the body company that installed it.

Take a look and let me know if they help.

Joe

See pic below.
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Saturday, April 1st, 2023 AT 3:49 PM
Tiny
KARLA ZEN ART
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  • 3 POSTS
Thank you much! See how it goes from there.
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Sunday, April 2nd, 2023 AT 4:16 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,700 POSTS
Hi,

You are very welcome and it's no problem whatsoever.

If you can, let me know how things turn out. If I can help in any way, let me know.

Take care,

Joe
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Sunday, April 2nd, 2023 AT 6:57 PM
Tiny
KARLA ZEN ART
  • MEMBER
  • 3 POSTS
Hi, so I got all the ground wires connected on the box, but after I started the truck, it shorted out under my dash, and I have some ground points that have come loose and blowing fuses. I'm not sure where they go.
That is possibly my issue?
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Monday, April 3rd, 2023 AT 2:33 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,700 POSTS
Hi,

What shorted under the dash? Also, are you certain that the wires you refer to are all grounds? Could you take a few pics and upload them for me to see?

Let me know.

Joe
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Monday, April 3rd, 2023 AT 7:38 PM

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