Upfitter switch question

6fourstroker · Dec 3, 2014

Guys, I just installed upfitters in my 08 6.4. Relay box/harness and all. Pain in the ass to get the wide plug where it needs to be not to mention finding the female end.

First off, I know for sure I got a wire harness/relay box for an 08-10 6.4. But I think the actual upfitters I got are from 11 and up. I say this bc the male end of the harness that goes into the upfitter switch panel has a total of 7 wires. 4 on the bottom and 3 on the top. Now, when I got my switches separately (weeks ago) it had the male end of a harness plugged into it already but cut off. It has 8 wires, and where it plugs in has 8 pins.

This is the plug that came in the switches I got. Has 8 wires. Now just imagine the grey wire closest to you being gone which would be how the plug looks on the new harness. The wire colors are totally different as well.

I plugged them up and the lights come on when I flip them up but that's about all I know so far. Didn't want to actually try to use them until I figure out if there's a difference or not.

Sorry for the long post. I tried searching as well and continuing to.

6fourstroker · Dec 4, 2014

Anybody?

6fourstroker · Dec 4, 2014

Nobody?

taterthedog · Dec 4, 2014

Lot of info on up fitter switches in the 6.4 tech and FAQ section of the library, under the West Point header in the forums. I don't know if it will answer your question but it 's a good spot to look.

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6fourstroker · Dec 4, 2014

taterthedog said:
Lot of info on up fitter switches in the 6.4 tech and FAQ section of the library, under the West Point header in the forums. I don't know if it will answer your question but it 's a good spot to look.

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10-4 I'll double check there. Thanks

6fourstroker · Dec 6, 2014

No dice. Library just tells me how to high idle with upfitters.

webb06 · Dec 6, 2014

Use a voltmeter to see if the wires coming off the switches are getting power. It's probably fine.

TD-5 · Dec 6, 2014

Neither of the SVE bulletins regarding up fitter switches show the extra grey wire to the switches. Can't say what it would have been for.
If you have the harness connected as shown in the bulletin wiring schematic you should be good to go.
As mentioned, check for voltage from each of the blunt cut wires related to each switch as you turn them on.

6fourstroker · Dec 7, 2014

webb06 said:
Use a voltmeter to see if the wires coming off the switches are getting power. It's probably fine.

TD-5 said:
Neither of the SVE bulletins regarding up fitter switches show the extra grey wire to the switches. Can't say what it would have been for.

If you have the harness connected as shown in the bulletin wiring schematic you should be good to go.

As mentioned, check for voltage from each of the blunt cut wires related to each switch as you turn them on.

Yea I went ahead and hooked up the PTO wire to switch 4 to see if it worked and it did so I guess it's fine. Thanks fellas.

Was just concerned bc I'm positive the switches I got came from a 14 model.