As I said in the last post, you are all wonderful people and before spending out having the codes read, I was thinking....
When I turn the ignition on, I get the 4 lights (ABS, TC & 2xHDC lights). One of the HDC lights goes out to leave the three lit and they stay on. This is before I move the car. Normally, I think 3 go out to leave just the ABS lit - and this goes out once up to about 5MPH.
So from this, can I safely say its not a wheel sensor/drive shaft ring - because these only are identified once the car is moving? Or is there a 'self check' on the sensors?
I can also safely say its not the brake switch - because that doesn't throw the TC light.
So by deduction - it must be the modulator?