Originally Posted by Hotrod_Ford
I read a few posts and found a few wiring diagrams on how to wire a 2 filament bulb for the brake lights and indicators. The problem is I dont have the same indicator switch as any of these diagrams and all of them show the brake wiring going through the indicator switch. My indicator switch has one supply and two output positions (Right, Left). If I connect the brake switch as on the diagram, the front indicators will also light up when the brake is applied and when I use the indicators both indicators will flicker. The only way to fix this is to make use of diodes. Any other suggestions?
What turn signal switch are you using? The turn signal switch in nearly every US-made steering column in the last 60 years has separate output terminals for the front and rear turn signal bulbs specifically for this reason. The rear lamps run through the brake switch first, the fronts do not.