electrical on 1993 Jaguar XJ6

instrument panel stays on when ignition is off and will not turn off

2 answers
Where can I find a Security System Manual for my 1993 Jaguar XJ6?
Some sort of electrical short, which is what Jaguars are famous for--I'd take it in because this will be an obnoxious battery draw. Maybe disconnecting the battery and reconnecting it will make a difference?