7-Pin Mystery On My 2008 Sightseer 34M

[bugzee]

I'm installing a charge line in my Sightseer and when I come to the factory mounted 7 pin on the rear bumper there of course is not a aux pin available as the hole for it has a factory rubber plug. When the plug comes out there is a vacant hole with no receiver clamp for the pin that would go in there off my toad.
When I go to change the factory plug I find that the wiring diagram in the owners manual shows the ground at the "7 o'clock" position, but the actual wiring has the ground(white wire) at the "9 o'clock" position.
Naturally the new plug I want to mount there has another position / location for the ground....
After having a new Blue Ox baseplate system and 4 diode wiring rig installed in my Colorado, I'm not too keen on screwing up the connection to my Siteseer. Looking for clarification, please.
Too obtuse?

 

[Morich]

This sounds like a pretty common thing when folks don't bother to check for the correct way to wire things. In this case, it sounds like the RV outlet is not correct?
So do you feel the wiring of the tow car is correct or is it also possibly a mess?

The solution from here and not being able to check, sounds like the outlet needs to be rewired to standard RV wiring without looking at the color but actually checking what power feeds wind up on the pins.
But that also means the wiring on the car needs to be verified as being the same layout!
The better solution seems to be to verify if one is correct and using the RV standard layout, then wire the other to meet that layout.
I use care when looking at wire colors as they are even more prone to not meeting any standard and really don't matter if the power they carry is correct!

Rather than try to sort colors or if the last person did it correct, I just go with using the meter to verify where I find the power feeds.
I tend to verify the ground as good, then go to the turn signals as they are so easy to spot. But if there is a drawing on the lid, etc. that can cut the chase if t seems to be going right.


Once I have verified where I find each on the outlet, I then move to check the car with find ground first. If that seems right, I then go through each of the power feeds to verify they work as they should. A set of small clips to connect things without actually plugging them together is handy.
Once I have found ground and to avoid plugging it directly into power. I can then go to each feed light the turn signal and clip it together to see it lights the correct turn signal!

Slow and steady but I rarely trust the work others may have done until I verify they were likely to have done it right!

 

[bugzee]

Thanks very much for your help/reply...as my toad wiring/base plate was installed professionally and works correctly, I am going with your suggested "slow and steady" approach. I have cut off the existing plug in at the rv and will wire in the new one while testing each wire as suggested. thanks again.

 

[l1v3fr33ord1]

I've attached a snapshot from a typical 2008 Sightseer wiring diagram. I picked the Ford detail, but a Workhorse chassis will be similar at the 7-pin connector.

The simple answer is that the diagram shows the "back" of the factory-installed 7-pin connector, not the part you see when you look at the pins. The wire locations on the "back" do not tell you where the pins are on the "user side."

The signals from the diagram and their pin locations on the "user side" are:

Circuit	Signal	Ford Color	Pin Position
AAE	Reverse/Backup	Black-Light Green	Center
RRJ	Ground	White	7 o'clock
LLG	Trailer Electric Brake	Dark Blue	5 o'clock
AAG	Right Turn/Stop	Dark Green	3 o'clock
Empty	12V Charge Line	N/A	1 o'clock
AAD	Tail/Running	Brown-White	11 o'clock
AAF	Left Turn/Stop	Yellow	9 o'clock

I refer often to the "7-Way RV Standard" on this diagram to refresh my memory. The signal-to-pin relationship is paramount; the wire colors are not.

 

[bugzee]

this makes even more sense….user side vs backside…duh. between you and Morich, I’m golden ! thanks