I have 2006 xc90. suddenly i can't open from inside both rear doors and operate from doors switch to open/close rear windows. windows are operational from front driver side control. check fuses they are OK.
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Possible motor. Have you tried pushing on the window while operating the switch? Does the switch feel normal as you operate it? Possible broken wiring in door harness where wiring exits the door and enters the vehicle. You will have to cut protective boot to inspect wiring. Failure rates on rear window motors are low.
try to close or open the window from the main switch.If it works then you have the rear door window button. If it still not working either from main,then you have to check the window regulator in the rear door.
Hold the hatch hard closed into its frame whilst pulling on the release handle. The mechanism on most cars consists a grab/release on the door and a simple metal hop at the bottom of the frame. Over time the hoop can become loose and move slightly inwards each time the door is shut. The door seal rubbers push back on the door surround putting a lot of tension against the grab/release mechanism preventing it from releasing. By pressing on the door and compressing the rubber surround you will take the pressure off the release mechanism and allow it to open when you pull on the handle.
Once the door hatch is open, loosen the mounting bolts to the metal hoop and move it out about 10mm. Tighten the mounting bolts. Shut the door gently as a trial close and check for security of fit. If very slack, ease the hoop inwards a couple of millimetres. When happy, tighten the mounting bolts securely. draw around the hoop mount with indelible ink so if it moves in future you have early visual warning and can remount it easily
inside the mechanical lock (The part that actualy holds the door shut when you close it) there is a switch that informs the control unit that the lock is either locked or unlocked.
These switches fail sometimes, when this happens the control unit is not aware that you have opened the door, and therefor will not wind the window down slightly.
This is also likely to be the cause of problem # 3 , door will not lock. I fthe faulty switch is not informing the control unit that the door is closed, the central locking will not try to lock the door (because it thinks the door is still open).
The switch is integral with the lock unit, and they are not easy things to replace either.
as for the wipers and engine fault, there could be a number of different possible faults here, would have to be looked at.
My 1998 passat done the same, try remove the drivers side window/childlock control on the armrest and clean the multipoint switch as that got my drivers side door opening/closing on the fob as well as the passenger rear door unlocking and working again as it was deadbolted and would not open inside or out.
dis-connect your battery for 30 seconds to do a switch reset on your window, when you reconnect the batt your window will go down, open and close rear door to check lock functions ok first. close rear door and using key or switch inside car close window fully with out stopping, this should reset the window.
It may be possible the rear windows are mearly stuck in the closed possition. If they are not used often they can actually stick to the weather stripping in the window frame & not allow it to go down. You can try to "bump the window with the heal of your hand a couple times while holding the window switch down. If this doesn't work you can also try "banging" the door frame. If you can hear something inside the door when you try to operate the window it is usualy the motor trying to open the window. You may need to try to close the window & then try to open the window again in order to hear anything. If you think this may be the case you can also close your hands on the top of the window(one on either side of the window, Inside & out side) and pull down with all the force you can while a friend operates the switch.
If it is not stuck... there is no separate fuse for each window. you will then likely have have a motor or switch issue how ever this is unlikely on the windows that are used the least.
Good luck, hope this helps
Put the window down all the way and then hold the switch up, hold it until the window closes all the way up, and continue to hold it for about 10 sec. after the window is closed. Try this a few times, but if this does not work you will will probably have to take it to the dealer. They will have to do this for you with the Volvo computer scanner, this is covered under warranty if you are still with in by millage if not they will charge around 50 dollars.