Tailgate on a 2002 trailblazer will not open. unlock button wont let it open. what fuse do I need to check or do I open from inside?

Central lock problem, rear door and trunk don´t open - Xoutpost.com

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Aug 23, 2014 - 10 posts - ‎4 authors
I have a problem on my X5, the remote key can only open the front ... I´m in a distante country without any BMW representative, but I can ... Remote keys can only lock andunlock the front doors, the rear door locks does not respond. .... the front doors openit won't unlock or lock the rear doors and rear trunk. Door Won't Lock With Key
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Sep 26, 2013
Door Lock (passenger side) won't unlock with remote
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Upper Tailgate wont open from the outside
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X5 Tailgate Diagnosis E53 - YouTube

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BMW X5 xDrive 30i automatic tailgate does not w

check fuses. I have a button that unlatches the back glass that is up by the instrument panel. I pushed that button a million times. Then I realized that the cab lights weren't working so I replaced the fuse, which happened to fix the back door!

Check to be sure there is not a seperate fuse for the wiper. Check power and ground at the motor. if you have power and ground replace the motor. if you don't, check for a break in the wires where the harness bends at the tailgate. take the interior door trim apart to unlock and open then inspect the inside of the door and all components. i can't really help with seeing it. the econolines have issues with the lock cylinders.

the most likely failure is the tailgate lock actuator, the tailgate will have to be taken apart from inside (very difficult)

I am not sure how to manually release the latch....

however,

if it is electronic, i would check the fuse for it.....normally though on the inside there is a little access to things like that, so you can manually open it...would be like a small lever.

Test the tailgate ajar switch circuit's using a wiring diagram an a volt ohm meter . Probably one of the switch needs to be replaced . Free wiring diagrams here http://www.bbbind.com/free_tsb.html

First thing: Try using the key to move to the locked and then to the unlocked position. If this works, open the tailgate... This also pretty much tells you what the root cause problem is, which is a pressed-in plastic post working its way out (see below).

If no bedliner, just remove metal plate inside tailgate and actuate by hand inside to open. If bedliner, first use a small screwdriver to carefully (don't scratch paint) push in latches at either side of tailgate to open/lower tailgate (if locking/unlocking as above did not work to lower gate and gain access). Next, use two blade screwdrivers to pry out the "buttons" that hold the ends of the tailgate liner where they wrap around the sides, then remove bedliner piece and metal plate, etc.

Once you have access to inside of tailgate, you will see how the mechanism works by pulling up and down on the handle while observing. You will probably find that the slide mechism that locks and unlocks the mechanism has been allowed to move such that it cannot unlock/allow movement of the latching mechanism. This is usually the result of the pressed in plastic anchor being worn/loose. I had some success with cleaning thoroughly with alcohol or brake cleaner, allowing to dry and then using super glue to hold it firmly in all the way. Still have to hold handle up when closing gate and keep key on hand to unlock every time opening, but it was a free repair...

solonoid in boot lid broke or wires broke where wires leave body in a ribber sheaf and go into tailgate.open from inside then investigate further

I had the same problem on my 2000 blazer, I peeled back the carpet and cut out a small hole near the mechanism and put a flat head screw driver in there and unlocked it manuallly

my v70 vovlo estate(2000) tailgate wont open.checked fuses ok.no sound from mechansim when key fob depressed as the others do.Cant get into the back panel or open door at all.can you help with a suggestion?