Well Mick today some of the lights have come back on. These include the Service Light and the Traction control light. Although the engine management light has stayed off. It was a dewey morning, i bet they go out again as it gets hotter.
I had a similar issue a few months back, EML light coming on and going into limp mode, got the usual pedal fault code, i did notice it was only happening when it was wet/raining etc, the root cause turned out to be the air recirculation flap was stuck in the open position letting in a lot of moisture to the pedal area, so i would suggest checking your re-circ flap is working ok.
To check just put your blowers on full blast and then press the re-circ button, you should hear/feel a bit of a difference in the air flow comming in, if no difference then its probably gubbed.
It can be accessed from 2 places, either by removing the driver side scuttle panel then the other little panel that is just clipped on under that you will see a piece of black plastic (It about 8 inches long if that) just slide it up/down (it kinda rotates right round) into a open/close position.
It can also be located from the drivers footwell area, on the right hand side just stick your head under and then stick yiour hands up into the gap, have a fiddle around and u will find it no probs.