Ok, here we go again, I've just purchased another P38 to join my fleet of P38s. She is a very late 2001 Vogue. The seller advised the only fault is a mysterious battery drain, 'easy I thought' I know all the answers to this. Ok so she won't go to sleep after locking her and waiting for 2 minutes. It's not the RF receiver as the aerial has been disconnected. It's also not the BECM as I've had this refurbished by a well known P38 specialist. I actually have another identical P38 so have swopped the BECMs, RF receivers and ultrasonic sensor over to rule them all out. I've also replaced both front door locking mechanisms. As you can see I've done the obvious things but she just will not sleep...... What next? The only fault with car is the sunroof is stuck in the closed position due to a seized cable so will not set and shows 'open' on dash. My other P38s sleep fine with sunroof open so again have ruled this out. Where do I go next?