[Warning Light] Can anyone help with this??

[Michael Chesters]

Van in subject: Citreon Berlino 1.6 HDI ( 2006)

After driving the van I parked up and keyed off and headed to the house for the spuds. After some time my neighbour knocked the door to tell me my wipers were on flat out, so I run out to switch them off but to my surprise they wouldn't switch off... So I opened the fuse box and pulled Fuse 17 (30amp) for the wipers and thankfully killed power to my wipers..... I then noticed my see lights were on ( key was not in the ignition )..... When I tried to switch off the sidelights surprise surprise they wouldn't switch off either... So to prevent the battery running low I pulled the terminals off the battery so it was isolated. NExt day I went back to fault find but couldn't see any issue..... I assumed maybe it was an earth fault but like I said I couldn't find anything.... When I hooked the battery up again I noticed the dash had lit up like a beautiful Xmas tree ( still no key in the ignition ) .... Lights that are lit is as follows: STOP light, Passenger airbag light, airbag warning light and of course the engine management light...... Note = when I key onto ignition the fuel gague and any other gauge do not move a bit.... Has anyone ever had a similar issue and please can some kind soul lend me his knowledge.... Thankyou...