Don't know if this is causing your problem, but I = once induced a flashing temp light by accidentally sticking a key into the slot in = the steering column right next to the ignition switch. I have a big = key for my Geo Tracker that doesn't quite fit on my key ring and occasionally = sticks out at a right angle to it. Once, while starting up the Westy, the = Tracker key got wedged into the steering column, causing the horn to blow and the = temp light to flash. Man! Did that drive me nuts for a good 2-3 minutes = until I saw the problem!

So, my point is, there is obviously some wiring in = the steering column which, if shorted to ground, will cause your = symptoms. I don't have a Bentley (shame on me), but perhaps someone who does could = tell us what wires those are.