Massage Seats not working XC90 Exec
 

I know, 3rd world problem!

But I was troubleshooting my XC90 Exec Seat Massage Pumps.

Replaced the rear Fuse - blown.
Replaced a pipe to drivers seat which was cracked, degraded and broke.

Now I can hear both pumps humming on and off - and an associated light clicking of relays when I switch them on and off again with the mini toggle switch.
So feels like they are operating and pumps kicking in..

But no movement in seat back or massage sensation - any ideas?