Engine doesn't turn off.

[Marcus1991]

I asked this a while back but the fault has now developed further. My hand brake light, stop light and oil light are on all the time, even with key out of the ignition. The glow plug light doesn't come on, but turning the key in the ignition barrell a few times the engine will start (still with no glow plug light on) and now the engine doesn't switch off, so I have to stall it. Anyone have any ideas on what it could be.
I have a suspision the ignition barrel/switch is at fault.

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I have also had the 3 plugs connecting the ignition barrell to the main wiring loom unplugged and the engine still runs.