L322 Help with Key Fob Issue 2004 M62 V8

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Rsands

New Member
Posts
5
Location
Essex
Hey guys, 2004 4.4 M62 V8 thought I'd tackle my key fob locking/unlocking issue again, has anyone got access to the 2002 - 2005 central locking diagram that shows all the components?

Slowly driving me insane, key fob has never worked since I owned the car, so far I've replaced:
Car Battery
Key Battery
BCM (reprogrammed via RSW All Comms)
& Receiver in the boot

And the key fob still does not want to connect/sync to the car no matter how many times I try the syncing procedure.

The only highlight was when I replaced the BCM the central locking itself now works when before it didn't via manual entry of the key.

One solution in the back of my mind is one of the rear windows does not go down, not related to the BCM as I can hear a click of the motor, would this stop the key syncing, does the car think the rear window is open?

Completely stumped on this one,
 
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