02 civic door lock problem

can anyone help ?? i installed a mannix alarm/remote start last year sometime, everything worked perfect untill now, almost a year later. When i press the lock button on the remote, the locks will barely move, as if it took the command, but doesn't have enough "juice" to lock or unlock. So i tested the locks with the door switch, and the same thing, the locks appear to "try" an move but don't, i can hear the locks inside the door doing something, but seems like not enough power or ??. Then, all of a sudden one door will work and not the other, then they will both come back for a few days, then a few days later, the same thing. Anyone know what this could be ??

Replace factory actuators. Possibly covered under factory warranty if intact.Certified Security Specialist

Always check info with a digital multimeter.

I promise to be good.

Tell Darwin I sent you.

I've been sick lately, sorry I won't be on much.

yes  just replace door lock motor you can get it on ebay $10 for pair