Auxilliary switch hook up

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Sep 10, 2005 | 06:55 PM

D & R

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Auxilliary switch hook up

I have hooked up my auxillary lights but they don't seem to have any power. I have called all the local Ford dealers and no one can seem to help me. There are four wires on the engine side of the firewall that I have hooked up. Is there a specific fuse I need to install to make this work? Any help would be greatly appreciated

Sep 10, 2005 | 07:47 PM

BigF350

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D & R
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Sep 10, 2005 | 07:56 PM

matt1751

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I beleive those are just pass through wires so you don't have to run anything through the firewall yourself,, there is no power to them,, you should be able to find the other ends under the drivers side inside the truck just hanging loose.. You would need to connect a switch and power source at that point to get power to your lights. Depending on the Amp draw on your lights and the trype of switch you use, you may need to wire in a relay as well,,

Sep 10, 2005 | 07:57 PM

Hayapower!

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From: CA

Quote:

Originally Posted by D & R

If you've hooked up to the 'customer access' wires 'blue, white, black, red' they dead end running back to the fuse panel.. They are taped to the harness just behind the fuse panel and are 'tagged' customer access.. If you use these wires for powering a circuit, they'll need fused power fed to them.. They are for 'through fire wall' wiring/add on equipment.. If this is an 05-06 the upfitter wire leads will be behind the F/panel as well..

.....................HP.......

Last edited by Hayapower!; Sep 10, 2005 at 08:30 PM.

Sep 10, 2005 | 08:07 PM

jetact

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From: Happy Valley, Oregon

Do you have upfitter switches? If you do you will need to connect the pass through wire to the switch wire. I have used 3 out of the 4 switches and they work great.