codes

[Grinder]

Hi,
I was just settlin down to a bit of tv last night when my passat alarm went off. It would not reset with the key fob only by switching ignition on.The key fobs lock and unlock car and it starts and runs fine.... untill about a mile up the road when the door mechs try to operate and the interior lights come on. If you stop the car switch off and take the key out its fine till a mile up the road when the fault repeats itsself. done a scan today and these are what came up:-

00849 - S-contact at Ignition/Starter Switch (D)
25-00 - Unknown Switch Condition
01135 - Interior Monitoring Sensors
36-00 - Open Circuit
my plenium drains are bone dry as is the rear carpets.

any clues?
thanks,
Paul