Im having problem with my wifes 05 rav 4 aftermarket alarm (dont know the brand)
This evening all of a sudden the alarm will lock the door but wont unlock the door
Not sure if its the battery of the fob? I pulled the a wire from the sensor box that connect to the alarm light, its stop alarming and it let us open the door manually.

Any suggestion how to fix this? The alarm is been in the car for 3yrs. And this is the first time it happen..

Thanks..