High level rear brake light shorting saloon

[Rajsta]

My car (2011 A6 Saloon) has developed a fault with the centre rear brake light, it shorts out immediately as soon as the brake pedal is pressed.
I've fitted a new light unit but this hasn't cured the issue.
I've cleaned the 2 pin connector to no avail.
Any ideas on where to look/what it could be?

[dan2485]

With it disconnected do the rear brake lights work?

if not then disconnect one side and test

[Rajsta]

With it disconnected do the rear brake lights work?

if not then disconnect one side and test

Both left and right brake lamps work fine even when the centre light is disconnected. Its purely just the centre brake light that seems to always short out.

[Rajsta]

How do i test if its the actual led light unit that's possibly at fault?
How can i test the unit once removed from the car?

[M1tchy]

Touch the wires onto a 9v battery


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[swalker]

I can't picture the fault you say short so does it blow fuses burn wires?

[Rajsta]

Solved! Turned out to be a faulty new brake light unit.

But now I've developed another problem! The airbag light has come on and will not turn off.