Trailer plugs

Submitted: Wednesday, Nov 19, 2008 at 16:57

ThreadID: 63660 Views:2846 Replies:5 FollowUps:1

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stephen looking

Just after a little info on trailer plug wiring, on a car i have has got a 7 pin plug connection and the trailer has a 5/7 pin plug connection.
The wiring on the 7 pin plug is as follows.
1 yellow, left ind
2 black, Aux
3 white, Earth
4 green, Right ind
5 blue, Elec Brake
6 red, Stop
7 brown, tail rego

5/7 pin plug
1 not used
2 yellow, left ind
3 white, Earth
4 not used
5 green, Right ind
6 red, Stop
7 Brown, tail rego

Ok what my question is can i bridge on the 5/7 plug
1 and 2 so i have left indicators
4 and 5 so i have right indicators
the reason why i want to do this is because some time the trailer is pulled by a car that has a 5 pin plug on it
Also would this do any damage to any other car wiring, with either a 5 or 7 pin plug.

Regards........Steve

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Reply By: Member - Tony B (QLD) - Wednesday, Nov 19, 2008 at 17:04

Wednesday, Nov 19, 2008 at 17:04

Can not see why you could not. It will all line up good. Just do not plug somthing in with electric brakes or Aux supply :-). Cheers Tony

AnswerID: 336073

Reply By: Member - Vic S (VIC) - Wednesday, Nov 19, 2008 at 18:18

Wednesday, Nov 19, 2008 at 18:18

Steve
I had the same issue,the easiest way is to have two plugs on the car ,a 5 and a 7
Vic

AnswerID: 336090

Reply By: Sand Man (SA) - Wednesday, Nov 19, 2008 at 19:13

Wednesday, Nov 19, 2008 at 19:13

The easiest way is to have a short patch lead with the bridging in it.

When connecting the trailer to a 5 pin configured socket the bridging will enable the indicators to operate successfully.

When connecting the trailer to a 7 pin configured socket, you don't need the patch lead, assuming the trailer is configured for seven pin wiring.

Bill