My rear hatch on my wagon has stopped opening from the outside. I now crawl into the back and reach my finger in through the access hole in the hatch. It started awhile back and would not open now and again, Thats all changed as it now refuses to open from the outside. I can't seam to find anything online as to the fix. Is there an electronic switch on the handle? It doesn't seam to push too far in when I press it and I hear no click at all..