7 pin flat+ 2?????

Cruising Cruze · Guru

7 pin flat+ 2?????

ColB · Member

wiring diag should read as follows

PIN 1 = Left Hand Turn ( Yellow)
PIN 2 = Reversing signal ( Black)
PIN 3 = Earth Return ( White)
PIN4 = Right Hand Turn (Green)
PIN 5 = Service Brakes ( Blue)
PIN 6 = Stop Lamps (Red)
PIN 7 = Rear Lamp, Clearance and side Markers ( Brown)

That's taken from a Narva Diagram. So by the looks of it they may have substituted some wire for length or something.

Hope this helps

Cheers Col

PeterD · Guru

Cruising Cruze wrote:
who knows what are them 2 extra wires are Cheers John

I take it you are referring to the socket on the tug. Do you have a reversing sensor on your tug? If so then possibly this is the socket that you have. Note the text in the top RH corner. There is an alternate one for other vehicles that require normally open circuit switches.

Herb · Veteran Member

hi I cant answer question exacty but I have seen one the same and the extra two wires were put in to run 12volt to trailer to run reversing lights and brakes. It was a cheap way of doing rather than changing to a 9 wire round plug. You should be able to work out by seeing if live. If live all time then probably a feed for fridge or similar. If only on once turned and turning something on then possibly aux of some sort.
sorry for giberish. I know what i mean lol

PeterD · Guru

Herb wrote:
rather than changing to a 9 wire round plug.

Herb, what are these 9 wire plugs? Can you give us a link to them? They are new to me, this is the complete listing of all connectors that I know of that meet the Australian standards.

Cruising Cruze · Guru

I must say that it is on my Holden Cruze dealer fitted tow bar ( if that helps a bit )

Dougwe · Chief one feather

CC, I have solved the problem for you.

After much research I have discovered that the white and grey wire's are for a new electronic cat repeller. Not many people have them and even know about them.

I spose they are a similar thing like those roo stoppers that you can get.

blankstare

Captain · Veteran Member

All new caravans and vehicles that come fitted with towbars and wiring, now have a 12 pin plug. The plug looks like the normal 7 pin flat but it also has 5 more larger pins below the 7 pins. The larger pins I believe are rated at 35 amps. The normal 7 pin plug will also fit the 12 pin plug.

Many caravanners use the 'spare' pin in the 7 pin flat plug as a hot wire (permanent 12 volts). If your van weighs 2 tonne or more, the law requires you to have a battery monitor fitted into your tug to show the condition of the battery in the van that will activate the brakes should the van come adrift. I have a battery monitor fitted and use pin 12 in the 12-pin plug to power the monitor. Just to complicate matters, I also use another pin to supply ignition to the smart charger in the van. With the computer system in my new Ranger, I cannot rely the alternator to supply power to the van batteries so I had to fit a smart charger to the van which will only operate when it has ignition. This set up prevents the smart charger from draining the crank battery when the engine is not running.

I know all this might seem complicated but I am sure your auto electrician will advise you of what is required.

snapper49 · Senior Member

Think Peter got it
I reckon they are to do with rear sensors
disarms them when plugged in

D and D · Guru

Captain wrote:
If your van weighs 2 tonne or more, the law requires you to have a battery monitor fitted into your tug to show the condition of the battery in the van that will activate the brakes should the van come adrift.

What law is this? I am aware of the need for a brake controller but not a battery monitor.

Dave

ozjohn · Guru

D and D wrote:
Captain wrote:
If your van weighs 2 tonne or more, the law requires you to have a battery monitor fitted into your tug to show the condition of the battery in the van that will activate the brakes should the van come adrift.
What law is this? I am aware of the need for a brake controller but not a battery monitor.
Dave

Dave,
Required at time of registration in NSW only for van weighing in excess of 2000Kg GTM.
If you van is registered in another State a monitor is not required.
Ozjohn.

D and D · Guru

ozjohn wrote:
D and D wrote:
Captain wrote:
If your van weighs 2 tonne or more, the law requires you to have a battery monitor fitted into your tug to show the condition of the battery in the van that will activate the brakes should the van come adrift.
What law is this? I am aware of the need for a brake controller but not a battery monitor.
Dave
Dave,
Required at time of registration in NSW only for van weighing in excess of 2000Kg GTM.
If you van is registered in another State a monitor is not required.
Ozjohn.

Perhaps people can be a little more clear when they make statements such as this. It would prevent a lot of confusion.

Dave