davie Posted July 12, 2015 Share Posted July 12, 2015 Hi All, So following the discovery of odd not working properly lights on my trailer i opened up the towing socket on back of my 90 and found it quite corroded so as first point thats to be replaced - way i guess is not worth going further until thats known good. now its a genuine kit thats fitted and having opened up plug where it joins loom it looks fine, so a small smear of grease and all back together there and taped up to be sure. the problem comes in that i dont know what wires do what for sure as its landrover colours, what i have is below pin 1 L Green with red trace Pin 2 54g Red with yellow trace Pin 3 31 Black Pin 4 r green with white trace Pin 5 58r red with orange trace pin six i dont know as either fell out on my clumsy removal or wasnt wired Pin 7 58L red with black trace Pin 8 58b green with purple trace so i dont know about pin six, Is it safe to just use that wiring numbers with a new socket rather than buy new kit? trailer has a fog light fitted - its kinda corroded so once rest is working i will replace with a new unit. Need to do this job mon or tues so any help is greatly appreciated Quote Link to comment Share on other sites More sharing options...
davie Posted July 12, 2015 Author Share Posted July 12, 2015 since been out and played with meter, next question is will it matter if i get l and r lights feed mixed? or does somebody know how to see which is which? Quote Link to comment Share on other sites More sharing options...
western Posted July 12, 2015 Share Posted July 12, 2015 get yourself a copy of the Td5 wiring diagram http://www.landroverweb.com/Pdf-files/Defender%20MY2002%20Wiring%20Diagram.pdf see Section 80 trailer socket & the relevant vehicle exterior lights Section 43. Quote Link to comment Share on other sites More sharing options...
davie Posted July 12, 2015 Author Share Posted July 12, 2015 cheers western, sadly i am totally rubbish with electrics so doesnt help me too much. any guesses on sidelights mix? Quote Link to comment Share on other sites More sharing options...
western Posted July 12, 2015 Share Posted July 12, 2015 on vehicle wiring 7 connections to be made to from vehicle to socket, left indicator = green/red trace rear fog lights = red/yellow trace vehicle earth wires = plain black right indicator = green/white trace right side/tail lights = red/orange trace brake lights = green/purple trace left side/tail lights = red/black trace trailer socket & plug connection pins colour is the trailers 7 core cable match these functions to the vehicle list http://www.towingandtrailers.co.uk/shop/132/133/142/ 1 Quote Link to comment Share on other sites More sharing options...
davie Posted July 12, 2015 Author Share Posted July 12, 2015 thats great cheers Quote Link to comment Share on other sites More sharing options...
western Posted July 12, 2015 Share Posted July 12, 2015 your welcome Quote Link to comment Share on other sites More sharing options...
davie Posted July 13, 2015 Author Share Posted July 13, 2015 well thats new socket fitted on landy, all packed with grease and much heatshrink etc on wiring to try and keep dry. bad news is although tester plug i have shows all working fine on landy whenever i connect to trailer and turn on stuff all the lights work as should but when hazards are on the side markers flash at same time. side markers are led and been on a year with no bother so hoping its not them. fog light unit on trailer is corroded but works, so just ordered a new led one to replace it. number plate lights on trailer are led and work fine, no flashing etc. going to wire new fog light back to junction box on trailer to rule out a peice of old wiring. any ideas for an electrical idiot? Quote Link to comment Share on other sites More sharing options...
western Posted July 13, 2015 Share Posted July 13, 2015 maybe the trailer wiring at fault or bad earth. Quote Link to comment Share on other sites More sharing options...
davie Posted July 13, 2015 Author Share Posted July 13, 2015 short of opening up the non led units and disconnecting one side at a time to see if fault goes away i am at a loss for ideas. Quote Link to comment Share on other sites More sharing options...
DaveSIIA Posted July 13, 2015 Share Posted July 13, 2015 I'd check for a good earth on the trailer wiring itself, through to the 7 pin plug. Quote Link to comment Share on other sites More sharing options...
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