Electrical Brake Light Switch Kit

The brake-line pressure-actuated brake lights have been difficult to get working smoothly. Although it's a simple mechanical pressure switch on the line, I could only get the brake lights to work easily if the brakes were badly adjusted, for some reason. If the brakes were (and are) correctly adjusted and working as they should, it took a lot of pressure on the brake pedal to get the brake lights to come on. Don't ask me why. As the Land Rover doesn't need a lot of pressure on the pedal to stop, the brake lights were never on.

This being a safety issue, and not wanting to replace the pressure switch (which would not be an easy job in any case, what with awkward access and draining the system, etc.) without being able to know in advance if the replacement would solve the problem, a work-around was needed. I contacted the ever-helpful Peter at 3 Brothers Classic Rovers (and no, I don't work for them), and he put together what has turned out to be an excellent and simple to install electric brake light kit, consisting of a steel bracket and switch.

The kit requires no new holes be drilled, so the Land Rover can revert to standard original configuration in just a few minutes by taking off the bracket and remove the wiring. This is a real 'plus'.

The only things I had to supply myself was the wiring (and I opted for correctly coloured braided cable, from Autosparks), the connectors, two wire clamps, and one rubber grommet to let the wires go through where there was a plug previously.

Pictured below, the basic layout. Essentially, there's the well-made and position-adjustable steel bracket, through which passes the pedal return spring, and into which the brake switch itself is installed. The switch's body position is also adjustable, forwards and back, and so it's easy to imagine the installation can be made to match any brake pedal setup. Installation was just done by taking out and re-installing two of the six bolts connecting to the brake pedal box. The bracket first appeared somewhat large, but it turns out to be perfectly sized and it stays well away from my foot on the pedal - and is not visible from the driving position.

The switch, as it attaches to the bracket. One nut on the pedal side holds the switch in place. There were several spacers, so the switch button could be exactly positioned against the pedal arm.

Here, the switch button can be seen pushed in by the pedal. As the pedal is pushed, it releases the button, and the brake lights come on. Very simple.

Then, its just a matter of routing the wires through the bulkhead and down to the original pressure switch, attaching them directly to the connection points already there, leaving the original wires also attached. Again, very simple. The electrical switch takes over from the completing the circuit from the pressure switch, lighting up the brake lights. Here, you can just see the new green wires passing under the black bundled wires on the firewall.

Seen head on, from a lower perspective. The switch assembly is actually invisible when you are seated.

And finally, just an illustration of the clearance between bracket and a large boot. With ordinary shoes, etc., there's obviously even more room. The bracket is very stiff, and certainly won't be effected if a boot should come in contact, in any case.