Good Morning all, I have a 2014 Petrol VRS, the epc light is coming on, the fault code is saying N75 boost control fault, which does tie in with as soon as the turbo comes in the light appears, then resets with the ignition being switch off then on again. 
can anyone point me in the direction of where the valve is in the engine bay please, I have looked and can’t find it, is it accessed from underneath?

thanks in advance. 

A little bit of help. Number 5 on the screenshot. 
J should be last revision.

 

Edited 17 November, 20214 yr by Bingodalton

Thank you very much, I must have had my eyes closed not to see that.