I having headlights, dash lights and tail lights problems.

• Turn the headlights ON – No parking lights, dash lights, tail lights and turn signals works.
• Turn the parking lights ON – Parking, dash and tail lights works.

I checked and checked fuses. I can’t find out what it could be. Could it be a bad switch?

 

I have no idea what the solution is but this is so intriguing I want to subscribe.

I thought all of the lights worked on relays except the dome ones.

Do you have a stock bumper? If not I'm wondering if the new bumper lights might be miswired.