trailer lights issue

[Badgerland]

Title says it all really. Hitched up the trailer earlier today, plugged in the light board and checked to see all was well (or not). My right indicator on the trailer wasn't working, so changed the bulb assuming it was blown. Nowt! But now I noticed that the indicators on the truck were off as well. If I unhook the trailer lights the truck lights all work fine. Thing is it's only the truck indicators that are effected all the other lights work ok.

 

Hooked the truck up to a mate's trailer which we know the lights are all working and same issues again.

 

Anybody come across this before? Not particularly savvy with electrics or vehicle stuff so any sensible advice very welcome.

 

The truck's a 2010 L200 Barbarian if that makes any difference.

[oldwoodcutter]

Are they led lights?

[richy_B]

Has water got into the 7/13 pin plugs? I had this and the electrics were doing all sorts.

[dan494]

Dodgy earth somewhere

 

Sent from my SM-G930F using Arbtalk mobile app

[slack ma girdle]

It will be water getting in somewhere causing corrosion on one the electrical connections. Start with all the earth connections-take apart and clean each one, and work back from there.

Enjoy:thumbup:

[Stock]

Get yourself one of these..............S.2297 Trailer Board 7 Pin Socket/Plug Tester (12V)

 

[Chris Day]

If it's only indicators and you hooked up LEDs from the trailer it could be a resistance issue. If it's all standard bulbs then it's water or a faulty earth.

 

If bulb to bulb circuit spray it all with wd40 or similar and see if that cures it. The clever thing to do is put the indicator on and spray each joint in turn and identify the weak link.

 

Hope that helps, I should caveat I cut trees and am not an electrician.

[Badgerland]

Are they led lights?

No, Oldwoodcutter, they're not LED's.

[Badgerland]

Has water got into the 7/13 pin plugs? I had this and the electrics were doing all sorts.

As far as I can tell no water's got in. In fact for a trailer socket it's remarkably cleaner inside than previous vehicles I've owned.

[woody paul]

Earth would maybe affect all lights, maybe a chaffed indicator wire to socket earthing out.

What happens when hazards are put on.