I'm Chris thanks for visiting us Technicians here at Just Answer.
Your going to have to remove the interior dorr panel and manually ope nthe door from the inside to inspect the cables to the latches and the latch rmote whcih the door handles link to the latches.
I have not heard back from you, so I assume you are needing more assistance on this matter, if so please do reply so I can finish this question. My goal is to have nothing but satisfied customers.
Thanks Hope to hear from you soon, Chris