Hello,

So I'm troubleshooting a friend's 2003 4Runner. When I put it in gear or push the lock button, the doors lock, but I hear a chattering sound and the door lock flip switch on the handles chatter back and forth as well. ALL of the door locks do this.

I was searching around a little and haven't been able to find anything concrete. I'm not sure if it's an actuator problem since all of the locks are doing this. Rather, I was thinking perhaps it is a relay.

Thoughts?

Thanks,

~TD