General DRL Problem flashing

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General DRL Problem flashing

Do both drl work, engine on, headlights off?

Do both sides lights work( same cluster as drl but dim ), engine on headlights on?

Do both side lights work engine off, key out ? turn knob from off to on with key out ( this is how you can purposely leave the side lights on when away from the car if you need to )

What I don't understand is why just one would flash not both sides, remove the bulb to confirm its a standard type, if its LED that could explain "some" of the problem?
 
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