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Discussion Starter #1
So basically guys i have had some elctrical nightmares with my 407, i have fixed my lcd's and moved onto the elctric windows and mirrors, the front passenger side electric window works fine, the drivers side buttons do not work atall, i had it plugged in and i was told there was no communication to the right front door from the bsi, i took the door card up hoping to find a broken wire but everything is pristine, on the 407 there is a little black box all the wires are connected to which is connected to the regulator itself, what is this box? and does anyone know what i can try to fix this, its an nct failure
 

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That's likely to be the door ecu. On a lot of Peugeots the BSI controls the door functions like windows and mirrors but I believe the higher spec trim levels require a door ecu as the BSI is controlling too many other things to include the door management as well.
 
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