1 - Interior Handle (link rod not shown attached)
2 - Exterior Handle
3 - Interior Manual Lock Knob
4 - Electric Lock Actuator (link rod not shown attached)
5 - Exterior Key Lock


When I was unable to open the door from either side, I could look through the gap in the window frame and see the problem was the door wouldn't unlock - not with the key, the knob or electric. It just wasn't turning / releasing and I could see the difference between the driver's and the working passenger's side.