There is a little switch beside the light inside the hatch. When you open the hatch, look up at the inside back of the hatch lid, where the inside light is. The light itself has a switch to keep the light off, so that you can leave the hatch open without the light beeing on. Then, beside the light (attached to it, but off to the side), there is a small lever switch that enables /disables the interior lock / unlock switch. That's so you can give someone the valet key when they are working on the car, or just parking it. The valet key won't open the glove box or the hatch. It's a security feature.
--
John
check the fuse
The support pistons need to be replaced.
I have replaced the coil and distributor cap.
Yes it could.
If the brakes on a Mazda 6 are squeaking, it could be indicative of a problem. The brake pads could be incorrectly set.
This question actually refers to a Mazda "6" that stalls when in the stopped position. Sorry about the miss printed info.
Possibly low fuel pressure
Bad thermostat
It's almost always a vacuum leak.
Short to ground or overloaded circuit
Dirty fuel injectors or spark plugs
A blown fuse or a damaged computer would cause the turn signals, interior lights, and door locks not to work in the Mazda 3. The fuses are located under the dash on the driver's side of the car.