Thread: blown fuse trailer reverse lights not working

Try a hard reset the short may have upset a computer somewhere
Do the other trailer lights still work? I think there's a fuse inside the trailer ecu - not sure where the trailer ecu is in your model - search on here for trailer ecu

If you were running power for the LED light from pin 2 (Normally Reverse but the D3 is a Fog Light Circuit) & Earthed you may have blown the Rear Fog light circuit ??

HTH
Cheers

Originally Posted by Meken

Try a hard reset the short may have upset a computer somewhere
Do the other trailer lights still work? I think there's a fuse inside the trailer ecu - not sure where the trailer ecu is in your model - search on here for trailer ecu

hi Meken


yeah the other trailer light do work so it is really weird. will have a look though the forum for the trailer ECU thanks for the input, need all the help i can get.

Originally Posted by sniegy

If you were running power for the LED light from pin 2 (Normally Reverse but the D3 is a Fog Light Circuit) & Earthed you may have blown the Rear Fog light circuit ??

HTH
Cheers

Hi Sniegy

i though the same thing so i replaced the rear fog lamp fuse (which seemed to be fine) in the rear quarter panel and still nothing. this really has me stumped.

Have you checked fuse 44 (15A) behind the glove box? It supplies the trailer fog light fuse.

Have you checked for power at both sides of the trailer fog light fuse?

Edit: Being fog lights the rear fog lights wll have to be switched on.

thanks Graeme

will give all these a go tomorrow though plug 2 was working even without the rear fog lights on before i shorted the circuit out. it worked when i put the car into reverse which i assume based on wiring diagrams is plug 2 in a trailer wiring circuit.
thanks again. will report back once i have checked these things.

Sorry, I didn't realise you were using the 2nd plug, thinking you were using pin 2 of the normal plug which is trailer fogs.

Perhaps the trailer reverse relay in the passenger fuse panel has failed.

Would you not do better using either the permanent or iginition power from the 2nd plug instead of reverse?

Hi Graeme

i will check the relay next. and yes i am using the 2nd pin in the trailer plug which is there reversing pin (black wire) and the reason why i am trying to use this pin to connected to the separate LED work Lamp is so that if i am reversing at night time to a camp spot i can see better to what is happening behind me also when reversing into the yard which is tight it helps me see. As for the permanent or ignition pin wouldn't this blind people behind me while driving or can you turn it off. Can i use the white plug?
trailer wiring diagram
i have attached a link to make my self a bit clearer sorry i think i was making this harder with pin and plug terminology.
i have checked the No 6 fuse in the passenger fuse box which is the trailer reverse fuse. when you say relay is that different to Fuse? And all other lights work on the trailer.

thanks again Graeme for your help and suggestions