Power lock problem

[1gDSM4g63]

I have a power lock problem. The odd thing is that the power lock system does work, once I unlock the door it locks itself back up. Sometime it's like the lock is having a seizure as it locks and unlocks it self very fast. I thought it was my alarm system, but it continues to do that after I took it out. I know it's probably a fault circuit, but has anyone had this issue before?

 

[rush2252]

Sounds like the switch could need cleaning. Could also be a weak door lock actuator or a bad relay.

Kolby

 

[stevo911]

Does this happen no matter what door you unlock first? Sounds like one of the motors are dieing causing one to stay open and one to stay locked this will make the system seizure not knowing if it should be locked/unlocked,