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Subject Topic: Towbar relay wiring. PLEASE HELP ME!!! Post Reply Post New Topic
15/7/2008 at 7:47pm
 Location: None Entered
 Outfit: None Entered
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Firstly real sorry if I should have started this thread in another place but here goes anyway.
I've got a towbar fitted, just to get the damn relay etc to work.
I have a 12N trailer socket fitted and all worked fine using our Landrover so know the trailer wiring is good.
Have wired the relay on our other car as follows:
Relay Yellow near side flash to car blue green
Relay Green off side flash to car blue brown
Relay Brown off side tail to car grey yellow
Relay Red brake to car black green
Relay Black near side tail to car violet grey.
Relay White to earth
Relay is live via a 15a fuse.
I have re checked the colours from the cars workshop manual and all seem correct, I have even checked using a circuit tester and they all getting power when using relevant lights, i.e flashers, brake etc but nothing happening to the trailer apart from near side flashers.

I am out of ideas,
Help greatly appreciated


16/7/2008 at 8:30am
 Location: Sussex
 Outfit: 2007 Eriba Triton 430GT
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I can't comment on whether you've wired up the relay correctly but if the near side flashers work, at least there is power to the relay.

You've been able to check that the inputs to the realy are OK, can you do the same for the outputs to your 12N socket?

If the relay outputs are OK then the next step is to check the output pins of the 12N socket.

Just work your way through methodically and I'm sure that you'll find the fault.



16/7/2008 at 8:19pm
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 Outfit: 
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It is quite easy when wiring the socket to wire it mirror image, when looking at a diagram. If your diagram shows the view of the front of the plug, if you follow it looking at the wire terminals. Double check the terminal numbers in the socket as they should be labeled if you look closely and compare them to the terminal numbers on the diagram rather than just counting the pins.


17/7/2008 at 11:19am
 Location: west midlands
 Outfit: Buccaneer Caravel & Toyota Amazon
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and make sure the male pins are apart to make a good fit in the socket as they close and will not make a contact ...could be that ..


17/7/2008 at 11:10pm
 Location: Bristol
 Outfit: Lunar Conquest 544 a
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What relay are you using ?

atb

Wizard




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