Has anyone had/got this problem.?

 

What vehicle?
At what point does it happen? Right on start up? 30 seconds after start-up? 5 minutes later?

 

Hi it's a Mazda 6 Mk 2 estate 2008
Right from start up. Constantly flashing in pulses of 2

 

Without scanning for fault codes I would be guessing, however this model is very common for dirty connectors under the front seats.

Disconnect the battery, disconnect the plugs/connectors under both front seats, clean with electrical aerosol cleaner, allow to dry, reconnect, reconnect battery, start car and see what happens.