I have an infuriating problem with the Autocheck on my car. The bulb failure light is almost constantly on. I have checked, and cleaned, all connections that I can find, with no success. I do not own a Bently manual for this car, but my 90 20v Bently manual shows some form of control box at each end of the wiring loom. I have searched all over for these in the 100, but to no avail. Can anyone help. I live in Eire and the local dealers are of no help, they do not appear to have seen such things!