brake & front light issue Options

[JFG]

i have the euro light set up on the front of my car but i found an issue today.

all lights work normally on the exterior independently. today i saw my front side lights illuminate when i press the brake pedal, the brake lights come on also .
the only other quirk i have is that when i indicate left or right the 2 arrows on tje gauge flash once then stop but outside lights work as normal. these arrows work when i use the hazard flashers.

if i remember correctly i used a diagram from jeff bowlsby website for the wiring and i'm sure this has only just started as i've checked my lights numerous times

[Dave_Darling]

The OP has some of the wires switched around. Power is probably feeding from the brake light circuit across to the parking light circuit. Check how the brake lights are wired.

Oh! And make sure you have the correct type of bulbs in the taillights! Putting a single-filament bulb into a dual-filament socket (or vice versa) can cause all kinds of really bizarre problems... If you take the bulb out, a dual-filament socket will have two metal tabs at the bottom of the hole. A single-filament socket will have only one. And you can check the bulb to see how many filaments it has.

--DD