[Dee67]

Thanks again Node,
Yes, I do have this pdf, thanks anyway.
The Rear lights are stock ones.
I think where I am getting confused is when a short circuit error gets stored, how do you use Tool32 to view it. I have read few posts regarding this, however, its not quite clear to me how to get this 'short circuit' info from the module. In the posts they refer to entering 'argument', I like to see pictures of it and the result showing how the 'short circuit' info is displayed.
I know that if there as been few repeats of 'short circuit' state then the module cuts off the power to that circuit. This does not apply in my case, the reason for asking is that if I purchase a used module, how can I check it whether it suffered any short circuits?.
I hope I'm making some sense...