NO LIGHT LIGHTS POSITION WORK IND TRANSIT

Hi, the other day I had a short circuit while changing a headlight bulb and it blew the fuse. I put in a new fuse, but when I turn the switch to parking position, it blows again, while the other bulbs work fine. I've looked for possible short circuits in the wiring, but there's nothing suspicious. Does anyone know what the problem could be?

The first and most basic thing is to review the steps you've already taken...
You said you installed the parking light and the fuse blew immediately afterward...
1. Remove the light you installed and check the socket.
2. Turn on the parking lights without the bulb. If it continues to blow fuses, then you'll have to look at the wiring.
Let me know how it goes.

Thanks, I've unplugged all the headlights and taillights and we're still having the same problem. It was caused by cutting some wires in one of the headlights and causing a spark. Since then, the fuse has been blowing. Also, the instrument panel light isn't working, but the low and high beams are fine