2012 Grand Picasso Blower issue

Currently baffled by a fault on my C4 Grand Picasso. The blower control lights up as expected but the blower doesn’t run. All fuses seem okay, ive had the fan running on a bench off a battery so I know the fan is good but I have no power coming into the blower.

Read elsewhere there’s a relay in the engine fuse box that could be at fault, replaced the fuse box but fault is still the same. Has anyone got any previous with a similar blower fault (they seem common) or a wiring diagram so I can chase the power back to the supply

Thanks