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6.0L Power Stroke Diesel 2003 - 2007 F250, F350 pickup and F350+ Cab Chassis, 2003 - 2005 Excursion and 2003 - 2009 van

Upfitter switches on an 03

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Old Apr 16, 2013 | 05:35 PM
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Upfitter switches on an 03

I have a 2003 ford f250 with a 6.0L diesel... Does it have a wiring harness for the 05 and up upfitter switches? I heard it might
 
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Old Apr 16, 2013 | 08:10 PM
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Nope, it sure doesn't.

It will or should have the pass through wires from the engine compartment (driver side) into behind the fuse block.
 
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Old Apr 16, 2013 | 08:30 PM
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Thanks... I see the 4 wires, but don't know what they are for? Do you. Bought truck used with no book
 
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Old Apr 16, 2013 | 10:00 PM
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Ford thought it would help the end user to already have some wiring through the firewall for after market add ons.

You can use them for what ever you would like to use them for.

Look behind the fuse block under the dash, you will find the other ends to those wires.
 
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Old Apr 16, 2013 | 10:06 PM
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Thanks for the help!!!
 
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