diagram of fuse box? - Chevy Colorado & GMC Canyon
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post #1 of 4 (permalink) Old 02-05-2007, 02:38 PM Thread Starter
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Location: Sugar Land, TX
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diagram of fuse box?

dows anyone have a diagram of the wiring for the fuse box? in need to find a switched port to use... i know i can use the multimeter to find one, but i'm still at work and want to plan ahead... :)

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post #2 of 4 (permalink) Old 02-05-2007, 02:46 PM
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See where the blade terminal is plugged? Thats a switched source. Hope that helps...otherwise doesn't take more than 5min w/ a test light and a buddy to find out which ones are and which ones aren't.

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post #3 of 4 (permalink) Old 02-05-2007, 03:16 PM
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I just found a convenient switched power source the other day INSIDE the cab.

I don't have a sun roof, so using some wire tracing equipment, I was able to track down the sun roof wiring inside the cab.

If you pull the trim off of the drivers side front pillar, starting at the top and working your way down, you will find a wiring harness inside. Look for a bulge in the tape covered part of the harness (mine was about a 1/3 of the way up from the dash board). Unwrap the electrical tape, and you should find a white or very light beige wire that is wrapped up inside there, and not connected to anything. This is the RAP (retained accessory power) power feed to the sunroof. The wire is there even though I didn't have the sun roof. It's already in the cab, so you don't need to mess around trying to get it through the firewall.

Anyway, splice on a new piece of suitable wire, solder or crimp butt splice, and wrap it all back up in electrical tape. Run the new wire down under the dash following the existing harness.

You will need to find the sun roof fuse slot in the under hood fuse box. The fuse will probably be missing. It says 20amp, but if you are not pulling that much current, you can/should install a smaller fuse.

It's RAP power, so it'll behave just like the radio power.

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post #4 of 4 (permalink) Old 02-05-2007, 09:06 PM
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good info - for my future projects...

thanks for info mmckenna

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