Message says "parking light bulb failure"

unplug the battery wait 5 mins then hook it back up should clear the error code

There are 2 fuses for parking lights left and right side. so it can be 2 relays. located in the box in the front.

"position light" is a rear parking light which has failed or become unseated. Sometimes you can knock on the tail light housing and they will come back on, but they burn out shortly after regardless.

These and the low beam headlamps fail very frequently on these cars so you should become familiar with the replacement procedures.

Check the online manual:

https://www.customers.volvocars.com/owners/docs/2004/2004_XC70/04xc70_08a.htm#pg122

suond like one of your parking lamp bulbs are out

Bulb position light failure indicates that you have a burned bulb somewhere around the car. Check all of them. Brake lights, parking lights, flasher and so and so.

This is a very common problem with Volvo.

You could alo get this problem eventhough no bulb is burned. If it's the case, test each bulb contact in their socket playing with them. Make sure you put some electric grease on contact replacing the bulbs.

Check if there were a recall for your specific vehicule and if it has been done on yours. I know that during the years, some recalls were adressing this type of problem.

Regarding whistling noise during warm up try to remove oil filling cap during engine is running. if the noise stops it's probably the PCV that is blocked and need to be replaced. If it doesn't fix it, let us know and we will go more in depth.
Hope it helped
Dan

the position bulbs are located in the trunk and you access them the same way you access the tail lights im not sure what the bulb does but its a 10 dollar fix. FYI when you replace the bulb the message center will still tell you that it has failed you have to take it to the dealer to have them to erase the message (i just left mine it seemed a waist of money)

I believe the parking lights are the lights that come on when you move the headlight switch to the middle setting. My S60 has 3 settings for headlights, daytime running lights (off or 9 o clock position), parking light (middle or 10:30 position), and lights on (top or 12 o clock position). Put your light switch into the middle position and check the lights from the front of you car. They are usually located on the side of the headlights and are orange. If the fault is on, you have a bulb out (most likely) or loose wire connection (not as likely).

The module reads the bulb amperages, so the bulbs must be the right ones for the car. Pay close attention to the third light and its brightness....921 I believe

how do i replace parking bulb in front of impreza 2007

These are Dual Function Bulbs. They control the Parking Lights and the Brake Lights. This Bulb is Burnt out on the Brake Coil inside the Bulb. I have actually seen Bulbs that were Bad But you could not Tell by jast looking at them. It should be fine with a New Bulb. Please Rate My Response! Thanks!