The Badger Posted February 3, 2008 Share Posted February 3, 2008 So I wired up some extra indicators on the front. did this by tapping into the normal indicator line and just run the wires of them. Swapped out the fuse's, indicators to 7.5 amp, hazards to 15amp. It worked, did not get the trailer light on the dash, great. Decide to change wires to a think guage also because this new harness, had the correct plug on the end, so I could connect and di-connect the extra indicators, it I were to take the bumper off again. Now, the trailer light flashes with no trailer attached? confused? Quote Link to comment Share on other sites More sharing options...
Gromit Posted February 4, 2008 Share Posted February 4, 2008 This would make sense if you had done the reverse, gone from thick to thin gauge and introduced a higher load. If it worked the first time, then I'd suspect you've a connection on your new setup that is pulling a higher than normal load. What happens if you disconnect one indicator at a time? Quote Link to comment Share on other sites More sharing options...
NicTheOrange90 Posted February 4, 2008 Share Posted February 4, 2008 Can you fit LED bulbs in new locations? this would reduce current load and would (IMHO) stop the trailer light flashing... http://www.ultraleds.co.uk/automotive-bulb...34eaa4443324bf7 Quote Link to comment Share on other sites More sharing options...
jimmy_neutron Posted February 4, 2008 Share Posted February 4, 2008 Probably easiest to just add a couple of extra flasher relays. Theres normally plenty of room in the fuse box. Revert your fuses back to standard. Then you can stick as many extra flahers on as ya want without affecting the vehicles original wiring, or risking overloading the old wires. Quote Link to comment Share on other sites More sharing options...
jonost24 Posted February 4, 2008 Share Posted February 4, 2008 I replaced my flasher unit last year, and now the trailer light flashes all the time with the idiotcators , but at least they work now. Quote Link to comment Share on other sites More sharing options...
simonb Posted February 4, 2008 Share Posted February 4, 2008 This would make sense if you had done the reverse, gone from thick to thin gauge and introduced a higher load.If it worked the first time, then I'd suspect you've a connection on your new setup that is pulling a higher than normal load. What happens if you disconnect one indicator at a time? Thin wire more resistance, less amps, therefore didn't trigger trailer light. Thick wire, less resistance, more amps, trailer light triggered... Quote Link to comment Share on other sites More sharing options...
The Badger Posted February 4, 2008 Author Share Posted February 4, 2008 This would make sense if you had done the reverse, gone from thick to thin gauge and introduced a higher load.If it worked the first time, then I'd suspect you've a connection on your new setup that is pulling a higher than normal load. What happens if you disconnect one indicator at a time? Well, if I take out one of the indicators, does not matter which one, the trailer light does NOT flash? So they are pulling more load, could it be a faulty wiring job? Maybe I should switch the fuse back to a 10amp, might work? Quote Link to comment Share on other sites More sharing options...
Chris Rogers Posted February 4, 2008 Share Posted February 4, 2008 Well, if I take out one of the indicators, does not matter which one, the trailer light does NOT flash?So they are pulling more load, could it be a faulty wiring job? Maybe I should switch the fuse back to a 10amp, might work? You should NEVER just uprate a fuse. A fuse is there to protect the cable from over heating and damaging itself. If you want to uprate a fuse, the entire cable needs to be of a greater rating than the rating of the fuse. In this case it'd be best to insert a relay for each indictator - this will add minimal loading onto the indictor circuits, and so fuses can be left as they are. Quote Link to comment Share on other sites More sharing options...
The Badger Posted February 4, 2008 Author Share Posted February 4, 2008 You should NEVER just uprate a fuse. A fuse is there to protect the cable from over heating and damaging itself. If you want to uprate a fuse, the entire cable needs to be of a greater rating than the rating of the fuse.In this case it'd be best to insert a relay for each indictator - this will add minimal loading onto the indictor circuits, and so fuses can be left as they are. Strange this, as the one that I took out was 10 amp already??? on the 07 defender all the fuses for the majority of the lights are 10 amp, hence I thought it might just be this. you are right, but Im not that stupid. Quote Link to comment Share on other sites More sharing options...
Gromit Posted February 4, 2008 Share Posted February 4, 2008 Thin wire more resistance, less amps, therefore didn't trigger trailer light. Thick wire, less resistance, more amps, trailer light triggered... Where's the moment-of-realisation-smiley Quote Link to comment Share on other sites More sharing options...
The Badger Posted February 5, 2008 Author Share Posted February 5, 2008 It is strange that some thinner wire makes a higher load? I am replacing the lights with LED bulps, ordered them, this should work. More relays will work, but why add the extra bit, I think in gerneral, good house keeping is to make all the lights a low load regardless. Hence my zenon bulp upgrade and led lights. Thanks for all the info, just thought it might been a weird think that has happened before? Quote Link to comment Share on other sites More sharing options...
simonb Posted February 5, 2008 Share Posted February 5, 2008 It is strange that some thinner wire makes a higher load? Nope, see my previous thread, thinner wire, less copper in it, therefore more resistance. V=IR so more R less I, so less load. Have you got a heavy duty flasher unit fitted? Genuine LR ones should flash 6 21w bulbs plus 2 4w ones for the wing repeaters. You may only have a "standard" car one fitted which is only designed for 4 21w bulbs. Quote Link to comment Share on other sites More sharing options...
western Posted February 5, 2008 Share Posted February 5, 2008 Told you it would do that Quote Link to comment Share on other sites More sharing options...
western Posted February 5, 2008 Share Posted February 5, 2008 I replaced my flasher unit last year, and now the trailer light flashes all the time with the idiotcators , but at least they work now. Trailer indicator warning light should flash once when the indicators start then it should stay out if No trailer attached. sounds like you need a new electronic flasher unit Quote Link to comment Share on other sites More sharing options...
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