Technical X250 L3H2 Ducato - Power Window/Mirror Fault

[IronMighty07]

I'm a little stumped so appreciate a little information or guidance if possible. Building myself a Ducato based camper around a 2007 LWB 2.3 Mulitijet. Due to personal issues its a slow project and recently the power windows/mirrors have stopped working completely. Initially thought it might be the switch panel on the drivers door but swapping it out made no difference(passenger side doesn't work that window either?)

Central lock button on panel works,but nothing else. A test of the wiring to the unit doesn't show a voltage on any pin in the 2 multiplugs either. Fuses seem fine(the ones one the panel on drivers side) so bit miffed where else to check why there appears no power?

Seen comments about a M135 control box but details seem a little scarce around testing or swapping out. As its power i'm hopeful of the fault being obvious but any hints from anyone who has previously experienced similar issues would be gratefully received.
Many thanks im advance.

 

[IronMighty07]

Now sorted, despite fuse testing ok, swapped it out for new one and all back working.

Did full run through on fuses, 4 incorrect rating found, 1 blown fuse plus 1 spring straightened spring washer in place of the o/s dipped beam fuse! Proper bodge job, scary to think it was an ex fleet maintenance support vehicle!