i bought my son an 01 v70xc. he noticed that the right rear parking lamp was out. he found the correct bulb and replaced it. that wasn't the problem, it was a blown fuse.

we replaced the blown fuse and everything was fine for a few days, then when he shut the rear door with the car running (or the parking lights on). it would sometimes blow a fuse. this continued for a couple of weeks.

he brings it home and i am going to solve this problem, so i trace parking light circuits and all wires look great, expertly run and wrapped, nice workmanship.

i notice that the right rear license plate bulb is burned out when i see it at night.

i replace the bulb, and bang. it blows the circuit and the right rear parking lamp.

i took apart the rear door, and found that the wiring harness for the tag lights was run between the lock plate and the door, and when it was tightened it smashed and bent the wires. in fact there is a wire loom on top of the lock plate specifically for the wires, so i checked the wires and replaced them from where they were smashed to the license plate lights, ran them through the wiring looms instead of between the door and the lockplate. that was the problem. havent blown any fuses, or bulbs since.