2003 Toyota Corolla electronic door lock does not unlock all doors sometimes? When using the electronic keypad on the keyring, all doors don't always unlock and sometimes none of them unlock. They won't even unlock with the key. My wife had to crawl into the car thru the trunk a couple times and now she does not lock the car any longer. Is there a relay that controls this?

SOURCE: drivers door power lock wont work.

Either the wring going to that motor or the motor itself is bad.

SOURCE: Left side door locks not working at all. Only manually or with key.

When I first read this I thought Solenoid/Lock motor.
But as it's two doors on the one side I would look for a problem with wiring /connections at vulnerable points. Where the wiring goes from the front door to the body is a good place to start.

SOURCE: i locked my keys in the trunk of my 2000 toyota corolla ce,

Yes, or you may have to remove the rear seats to gain access to the trunk area.Roll your windows down or leave the doors open to ensure there is sufficient air flow inside of the car. You do not want to run out of oxygen.

SOURCE: can not lock car by key remote . toyota rav 4 53 plate

If your car has an alarm with a separate remote, it is a separate system and it is probably self-arming. When you lock the doors with the key central lock, the alarm gets armed by the RAV4 being OFF and the door locking action. When you unlock the doors with the key, the alarm is still armed because the key is not comunicating with the alarm just the cars factory keyless system.