This car is really annoying me!!

Right then, the faults -

1- The dash is showing brake light bulb fault.

2- The drivers side tail light bulb is not illuminating.

Have checked and all three brake lights are working. The fault message on the dash does not indicate which side the fault is on. It is not displaying an arrow.
I have changed both bulbs and cleaned all contacts that I can find and still showing a fault!!

The centre bulb on drivers side is not illuminating. Changed bulb but still not working. The connector cable from the car has 6 wires I think and the connector on the light itself has a pin deliberately missing. Which colour wire is for the side/tail light?

Tail light bulb changed and working.
Still cant sort these break lights.
They are all working but still getting fault code.
All contacts cleaned and new bulbs fitted.
I did a fault code check of the car but not showing any brake issues.
Going to change the fuse disconnect the battery and then, if its still there, give up!!!