I would double check all of the fuses as a starting point.

Word of warning - do not pull fuses with the ignition on - you can easily bring up the airbag warning light that needs to be reset.

 

Just had that on mine. I think the later models are similar so you want the top section of the fuse box under the gear lever, the middle row of fuses and then fuse 20 which is probably 3 in from the right. On mine the trailer lead had touched the ground and worn through causing the short between two of the wires.

 

Thanks guys I will check all the fuses especially fuse 20
Fingers crossed

 

Thanks again guys for your advice.
I fixed the lights,on advice from another source.
I just disconnected the battery and reconnected it and hey presto.
It was explained to me like the computer senses the short circuit and shuts down that circuit.
Disconnecting the battery re sets the whole thing.
Worth remembering, probably for other electrical faults also.