Rear lamp assy replaced due to accident. All

quote, your oper guide. (missing"?)
what country? we can never guess that, and lighting laws, vary by.
drum roll, country. USA below....

1. Before servicing the vehicle, refer to the Precautions Section. NOTE The rear lamp unit may contain up to four bulbs, depending upon the market for which the vehicle was manufactured. The service procedures for each bulb are the same, only the bulb sizes and types may differ.
2. Disconnect and isolate the battery negative cable.
3. Remove the rear lamp unit from the end of the quarter panel, as follows:
   • Open the tailgate to access and remove the two screws that secure the rear lamp unit to the two plastic nuts in the side jamb of the tailgate opening.
   • Pull the outboard side of the rear lamp unit rearward far enough to unsnap the two ball studs on the outboard side of the lamp housing from the two plastic grommets in the quarter panel.
   • Disconnect the wire harness connector from the lamp socket plate connector.
   • Remove the lamp from the quarter panel.
   • Remove the two plastic grommets from the quarter panel and discard.
   Firmly grasp the socket on the socket plate on the back of the rear lamp unit housing for the bulb that is being removed and rotate it counterclockwise about 30 degrees to unlock it.

Open rear tailgate or door & remove the (2) screws
holding tail lamp assy on

I'm guessing, along with most people, you asked first
& never looked to see what the job entailed,why is that

If this is an original equipment replacement part should work just like its predeceser before the accident. Just check that everything is wel connected and in place by removing the panels and take a look inside.

Open the rear tailgate and remove the two screws that hold the tail lamp assembly in place.Now there are two alignment pins that hold the lamp in place, you must use a screwdriver or other flat device and lightly pry the lamp your working on. If you are removing the rear left (driver side) then pry back outward to the left. Alternately, if you are removing the right rear tail light, pry outward to the right. Do not try and pull directly back. The pins will prevent the light from coming out. You have to pull left or right, depending on the light your removing. Good luck.

If this is a Blazer and not a newer design Trailblazer...
Open up the tailgate / ;iftgate and there are screws on the inside surface of the tail lamp assemble. Remove the screws and then pop out the tail lamp to gain access to the connector for your signal bulb. Twist the connector to remove from lamp assembly. remove and replace bulb.

to remove the fog lamp assy u must go under the truck, it is held in from the rear, there will be a couple of studs and nuts you remove, I am a little confused hear, you have fog lights in the rear of the truck? is this a typo?

Humm ...Didn't die before the accident? now dies? BMW has good mechanics,but could not find any problem???. I gota think that it is related to the rear ending,but how? I would look for loose connections, Battery Ground that might have been removed before welding.Battery terminals, Any primary connections that may not be making 100% contact . It's worth a try.Good Luck

Syphen...

Or a Rabit Pump..
Its a hand crank pump..

Hope this helps !!

Do you need to change a bulb or are you changing to custom lamps. If it is bulb replacement open trunk/boot (depending where you live ) the access for the tail lamps is at the rear corners of the trunk, If you are changing lamp lenses or assembly remove the screws( same location ) at lamp corners

and Repair Notes TAIL LAMP REPLACEMENT REMOVAL PROCEDURE Open the rear compartment. Remove wingnut and pull back the rear compartment trim panel from the tail lamp. Remove the wingnuts from the tail lamp. Remove the tail lamp from the rear body panel. Disconnect the electrical connector from the tail lamp. Remove the tail lamp socket, turning counterclockwise. Remove the bulb from the tail lamp socket. Remove the sidemarker lamp socket, turning counterclockwise. Remove the bulb from the sidemarker lamp socket. INSTALLATION PROCEDURE Install the bulb to the tail lamp socket. Install the bulb to the sidemarker lamp socket. Install the sidemarker lamp socket, turning clockwise. Install the tail lamp socket, turning clockwise. Connect the electrical connector to the tail lamp. Install the tail lamp to the rear body panel. Install the wingnuts to the tail lamp. Pull back the rear compartment trim panel to the tail lamp and install the wingnut. Close the rear compartment.