If you Cadillac CTS driver/passenger door does not open from the outside, then stay tuned as this video will show you exactly how to fix it.
3 most common problems causing the door not to open:
1) Failed actuator
2) Failed micro switches
3) Bad wiring harness
Door Panel and handle removal 2:19
Actuator removal 6:46
Diagnosis 8:01
Reinstallation 9:48
Great job, what the part number? I have the dame problem.