[6pack] Brake and Oil Warning Lights

[Dave]

Hey List;

Can someone take a look at the diagram in the lower right corner of page 102 of the Dan Master's TR6 "Electical Maintenance" book and help me out? I hate to use the word 'logic' when discussing Lucas handiwork but, what is the logic of having the brake failure switch activating both the oil warning lamp and the brake failure lamp? Does my '74 Six, in fact, even have a Brake Failure Switch (as shown on the wiring diagram also at the back of the book)? If so, where is it located? My brake warning light on the dash seems to always be on any time the key is on, though all systems seem to be operating properly. So, I am in the process of checking the hookups I've made and am having some trouble determining the cause of the problem, much less understanding the wiring diagram and switch location (?) in the circuit there... Needless to say, TRF has no listing for a "brake failure switch"....

Thanks for any help...

Dave