Trailer lights...

[Mr Revhead]

So I've had 4 different trailers plugged into the 4wd.
The brake lights won't work with any of them, have been both bulb and LED type.
The wiring on the 4wd checks out according to Narvas wiring diagram, and using a test light there is power and a good earth.
I'm stumped.

[Lloyd]

4 dodgy trailers?

Check the pins for power when it's actually plugged in too. You may find it has a bad connection that's letting enough voltage through to power a test light but not the brake lights.

[Mr Revhead]

What are the odds?!
I guess the only thing I can do is put a multi meter on it and make sure there's decent current there?

[wde_bdy]

As above, probably a poor connection on the pins. If it is just the brake lights not working wrap a little tin foil around that pin and test it again. Spent hours chasing an issue like this in the past with a borrowed trailer, earth pin was a bit squashed and not connecting when plugged in.

Callum

[gepsk8]

Plug in a trailer, take cover off see if getting signal throughs the plug.
Normal if 7pin flat just light spread pins little. Normal most of problems

[Crucible]

Do you have power on the trailer connector side or were you testing unplugged on car connector. Sounds like brake + pin connection to me also.

[85AW20v]

Replace one of the trailer plugs with one from Supercheap that has the LED tester built in. About $16 at the moment.

[wde_bdy]

Replace one of the trailer plugs with one from Supercheap that has the LED tester built in. About $16 at the moment.

Which will then fail in 5 minutes. Been there, done that.

Callum

[KinLoud]

Replace one of the trailer plugs with one from Supercheap that has the LED tester built in. About $16 at the moment.

Which will then fail in 5 minutes. Been there, done that.

Callum

Same - good idea but very badly made

[Mr Revhead]

Yeah can't really do that with a bunnings/gas station/hire trailer though!

Have a new plug and will take a look this arvo