rear window regulator replacement. rt side

Yes, the window needs to be removed. I'd suggest to get a repair manual to do it. Zee

The inner door trim panel will have to be removed to inspect the window motor and mechanism and check for power to see what the problem is. Removing the door trim may be tricky and easy to damage trim that is expensive to replace if damaged! You would need illustrated instructions so as not to damage the trim. Autozone have some popular workshop manuals for free on line once you register (for free) on their website or there is a company that independent auto repair shops "buy" their information from that offer a very reasonable service to do it yourselvers. You can get a one week subscription or year subscription very cheap. The information is year make and model specific repair procedures, service bulletins, component locations, wiring diagrams ect.... great quality information same as the professionals have ,much better than generic workshop manuals from parts stores, much cheaper than the factory manual try http://bit.ly/mitchell_repair_manuals_online and get an online repair manual subscription.