electrical problem??

[frankirv]

I have an '07 Yaris RS, 250,000KM car has been fantastic since i bought it new in '07. But i now seem to be developing an electrical problem that i hope i can explain fully and get some advice.
First of all i DO have Daytime Running Lights (Ont Canada)
The problem ONLY occurs when i turn on parking lights (first notch)
or head lights fully on (2nd turn of the light stock)
So what is happening is when my headlights are on and i put my foot on the brake my left turn signal light on my dash illuminates.
Doesn't matter if the car is running or not.
No bulbs are burnt out.
I checked every bulb doing a walk around the car and i noticed the driver side amber turn signal also illuminates just slightly when the brake pedal is pushed.
Any clue where to start looking to resolve this?

thanks!