I have a 2002 toyota 4runner that is making a beeping noise even when the car is off. I have recently replaced both o2 sensors per code reading, but the noise is still there. It runs very well no other issues except beeping.

ps. I did see the post about it being someones garage door opener...i have checked. it is not.

Could someone please help...beeping is driving me crazy.

 

Strange!! Did you figure it out?