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OBD plug extra/unused wire?

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Old Jan 21, 2012 | 06:37 PM
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OBD plug extra/unused wire?

I have an extra wire that I saw today. It is not inserted into the OBD plug, but is cut/bare. I think it was blu/yel. There is a sticker around the OBD harness near it that says something like "Power take off-read technician manual for installation".

What is this wire for?

Thanks.
 
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Old Jan 21, 2012 | 08:17 PM
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pto, that might be the high idle wire for aux hydraulic pump.
 
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Old Jan 21, 2012 | 10:51 PM
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Hydro pump for what?
 
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Old Jan 23, 2012 | 08:08 PM
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I'm not shure, one of the other heavy truck fte fourm guys might know... I know from reading here, one of the uplifter switches were used for the high idle mod...
 
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Old Jan 24, 2012 | 06:49 AM
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Originally Posted by dfoxengr
Hydro pump for what?
Actually PTO driven hydro pumps can be used to power all sorts of work truck type devices. Anything from generators to hydro powered core drills, saws, valve operators etc. Lots of custom stuff out there.
 
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Old Feb 2, 2012 | 09:27 PM
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thanks guys. so its just a power tap with key on then? might be useful in the future
 
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