Hi All
I want to install a handbrake warning light and a brake fail light on my 77 resto. I think I should be okay with the handbrake light install (thanks to info from the forum) but I'm a bit unsure how to go about wiring up the brake fail light. Any help would be muchly appreciated.

Thanks
Eiles

The factory used a relay that would switch the earth when the starter motor was engaged as well as the master cylinder pressure differential switch.

Here is a drawing I did when I recommissioned my dash lights last year.


Edit - Updated to a more user friendly copy.

Thanks gtogreen.

The car didn't come with these extra bits but I want to install them as functional upgrades.

Eiles

I wouldn't be using the scotch locks like the factory did.
Also the relay is a bit of an overkill just to check the dash bulb is not blown. Lots of things to go wrong and very messy under the bonnet.
You could just run a push button switch to earth for the bulb check.

I don't think the driver needs a light to tell him or her that the brakes have failed
just make sure the horn works , so you can advise others





PS please have insurance

The middle finger works wonders too

not when you are in the wrong

Above circuit is correct but please DON'T USE SCOTCH LOCKS. That was one of the most Unprofessional thing Leyland Australia ever did on Minis.

_________________
DID I MENTION THAT I AM THE BEST SUPPLIER FOR MINI ELECTRICAL PARTS AND REPAIRS?
"Let us remove your "SHORTS"

Ok.
Thanks for all the help and advice guys.

Cheers

Eiles