2jznosht

Issue is the bulb that light up 0 to about 45 mph. Randomly will not light up. I have tried multiple bulbs and made site three were inserted correct...sometimes when I start the cat it will be lit up, then die during the drive. Other times it starts out off and will come on. Any ideas? I suck with electronics but wouldn't a short, or bad ground cause all, our at last multiple bulbs to go out?