Help with wiring to tail lights and side signals - Page 2 - Fiberglass RV

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Old 06-23-2015, 08:12 PM   #15
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Old 06-23-2015, 08:13 PM   #16
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The part on the left has some corrosion in it

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Old 06-23-2015, 08:39 PM   #17
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I found the part and it requires purchase of the entire harness .
I wish there was someway of disassembling and/or cleaning

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Old 06-26-2015, 02:07 PM   #18
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Where are you at? Princess auto has quite a few different choices for those connectors that you could probably used a bit easier than a whole new harness.
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Old 06-26-2015, 03:15 PM   #19
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What kind of corrosion are you seeing the female connector on the truck. If it is salt corrosion and it is eaten up, you may have to replace it. Otherwise, I'd try shooting some WD40 or contact cleaner in there and connect and disconnect the trailer a few times. That will likely clean it up and improve the contact. I've seen some pretty corroded connectors in my day and most of the time they can be cleaned up.
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Old 03-27-2018, 12:51 PM   #20
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Originally Posted by Gilles View Post
I find these pictures wiring... :
Thank you for your diagram. Tom
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Old 03-28-2018, 02:26 AM   #21
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Name: K C
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Originally Posted by Trillium-Pettis View Post
Thank you for all the help.
So I started going through with volt meter and after banging my head against the wall I found that our truck is not sending 12 volts to every wire.
The trucks 7 pin female connection interface has some minor corrosion.
It does not seem like it can be disassembled and cleaned :-(
I hope I can find the replacement part and not have to buy the whole harness .
The part is marked DELPHI PA68
and is original to the truck (2004 Chev Silverado)

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You can try taking the pins out, clean off the corrosion and then reinsert them. They make a small tool for the task. There are videos on youtube from various people showing how to do it. This one might not be the best produced video out there but you will get the idea from it. Plus he shows doing it with some common items if you can get the official tool made for the job.

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Old 04-06-2018, 12:06 PM   #22
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you can buy plastic safe contact cleaner at most electrical suppliers, that would eliminate having to replace wiring.
However i don't think this is your problem
In the fuse box under the hood there are individual fuses for the signal and running lights, and for the charge wire. in my experience with chevy trucks, these fuses tend to be blown due to bad wiring on previous trailers (no offence intended if you've had the truck from new) I have even seen these fuses not in place. google the fuse block layout, and you should be able to find a drawing pinpointing the fuses


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light, lights, tail lights

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