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  #1  
Old January 8th, 2012, 10:33 AM
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Craig Longenecker
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Easy one i am sure you guys...electricle

Was attempting to convert my trailer lights to a 4 wire hook up and had the wires incorrect and now my right hand side lights don't work on the truck. I checked the fuses and I don't see any blown ones.
Craig
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  #2  
Old January 8th, 2012, 11:01 AM
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Tom Rowe
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Do they not work at all, or only when the trailer is connected?
How did you convert to a 4-wire setup?
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  #3  
Old January 8th, 2012, 11:10 AM
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Did you convert from a 6, 7 or ? Why not just buy an adapter. You can Google the wiring diagram.
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  #4  
Old January 8th, 2012, 02:37 PM
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Craig Longenecker
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stupic electrical question

I know this may be a dumb one, but I am attempting to convert my 6 wire trailer connection to my 4 wire trailer connection on the D90. I did something to the right hand side lights of the truck. I checked the fuses and they appear fine. What do I need to do / have to figure this out.
Sorry for such newbie question.

TIA
Craig
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  #5  
Old January 8th, 2012, 03:13 PM
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John B.
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http://www.etrailer.com/faq-wiring.aspx
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  #6  
Old January 8th, 2012, 04:27 PM
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Craig Longenecker
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Yeah, I was on that site. The main issue that I have that I want to fix now is that I lost the front right running light, the rear red running light, the rear right break light, and both side running lights. Additionally, the dash board light indicating the headlights are on isn't working now. All else functions fine. So I would like to fix this problem first and I can deal with the trailer lights later.
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  #7  
Old January 8th, 2012, 05:56 PM
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John B.
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Well. You must have wired something wrong. It will be pretty hard to figure this out over the internet. All that you should have done is disconnect 4 wires from the old plug and connect them to the new plug.

What plug was on there before? Are you sure it was a North American trailer plug? European wiring is quite different. Was the old plug working properly? Maybe it was installed incorrectly.
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Old January 8th, 2012, 06:26 PM
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Craig Longenecker
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I think you have the situation a little off. The D90 has a 4 wire plug. I am not changing it. My trailer has a 6 wire receiver. I was attempting to convert the 6 wire to a 4 wire. In attempting this, I purchased a 4 wire adapter to convert the trailer. The trailer wires are 2 yellow (one solid and one with a brown strip), two green (one solid and one with a brown strip) and one black. I needed to figure out of the two green which one was to be spliced in the one green on the new 4 wire adapter and such with the other wires. I guess I guessed wrong because while attempting this (which it doesn't work) I lost the lights I described in the other post.
So for now my question is, how do I figure out how to get the lights working again on my D90 and I will worry about the trailer later.
Does that clear it up my situation better?
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  #9  
Old January 8th, 2012, 07:30 PM
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Still confused. If you bought an adapter it should just plug into the trailer and no wiring is required. These adapters are common at any auto parts store.

As to checking the 90, first remove the bulbs and see if they are OK. Next check for power and ground at the bulb socket and then go back down the line until you find the fault.
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Old January 8th, 2012, 09:16 PM
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Just undo what you did, so your truck will be back in working order...
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  #11  
Old January 9th, 2012, 07:51 AM
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Craig Longenecker
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Unfortunately there were no adapters that allowed me to convert a round 6 wire (male side on the trailer) to an inline 4 wire (female on the tuck). But I will figure that out later but I must convert the 6 wire round to an in line 4 wire or the other way around. that will require me to attach existing wires to a new receiver.
I was wrong in an earlier post, I do have blinkers working on the right side. So that means there is power and the bulbs are ok. But those same bulbs/lights are not working as running lights.
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  #12  
Old January 9th, 2012, 10:54 AM
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Craig Longenecker
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Is there a relay or something for just the running lights on either side ?
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  #13  
Old January 9th, 2012, 11:14 AM
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ed angel
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I think there is a running light fuse for each side, left and right.

Duble check your fuses before you go any further with checking grounds etc.

Ed
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  #14  
Old January 9th, 2012, 01:58 PM
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Craig Longenecker
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Quote:
Originally Posted by Antichrist View Post
Do they not work at all, or only when the trailer is connected?
How did you convert to a 4-wire setup?
They don't work at all. I never got the wires figured out. Once I discovered the running lights were not working I stopped messing around.

I purchased a the trailer side of the 4 wire system. I had six wires from the trailer and needed to figure out which ones were the ones I needed. As I was experimenting that is when I did the damage.

------ Follow up post added January 9th, 2012 02:00 PM ------

Quote:
Originally Posted by woldd90 View Post
Did you convert from a 6, 7 or ? Why not just buy an adapter. You can Google the wiring diagram.
Like I said, there is no adapter that goes from a Six round wire system to the 4 wire system that is on the D90. I purchased the trailer side of the 4 wire system and attempted to figure out which of the six wires were what.
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  #15  
Old January 9th, 2012, 02:19 PM
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John B.
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The two threads have been merged.
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  #16  
Old January 9th, 2012, 03:11 PM
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Dave Dulansey
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Forgive me if I'm wrong, but doesn't a 6 wire trailer mean that the trailer has brakes? I think you should consider hooking up a brake controller in your Defender. Given the power of the stock brakes in a D90 I wouldn't try to defeat any trailer brakes. I love my 95 D90, but given the choice I pull my 10 foot Haulmark (which has no brakes) with my wife's 2010 Honda Pilot.
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  #17  
Old January 9th, 2012, 03:56 PM
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Craig Longenecker
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I don't know you but you may be right. The trailer is a 1983 army type. I can post a pic of later.

Regardless of that, for now I would like to get the lights working again.
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  #18  
Old January 10th, 2012, 03:34 PM
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ed angel
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Quote:
Originally Posted by ADK46er View Post
I don't know you but you may be right. The trailer is a 1983 army type. I can post a pic of later.

Regardless of that, for now I would like to get the lights working again.

Fuse
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