After considering this overnight I'm beginning to think that the problem lies with the 12 pin connector (the middle of 3 which connect to the central locking pump (CLP) unit) as the connections into this:
1. Take a screened feed from an antenna (which i assume is for the fob signal) which now no longer seems to activate any response from the CLP unit when using either of 2 CLP units with matched key fobs.
2. Control the windows (which no longer work by any means i.e door switches) as part of the closure function on long press of the key fob.
3. Control the interior/puddle lights (which no longer function) as part of the opening and locking function.
4. Substituting a known working CLP unit with matched fob makes no difference.
The logic, it seems to me, points towards the connector. But why would this fail when the car was garaged for 8 weeks on occasional battery charge? Could it be anything else?
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2002 D2 S8 – Ming Blue, Valcona leather, Vavona wood insert, solar sunroof (to be fitted), Heated rear seats, extended leather pack, 18” Avus, ski hatch, Bose, auto dim rear view mirror, rear blind.
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