Hi everyone, so I own a 2008 Mazda 3 GS 2.0L and I seem to have an issue with my door ajar light coming on in my dash while driving. I will notice it flicker on and off occasionally and also at times it will just remain on.

I have narrowed it down to being my trunk, with the door ajar light on and car in park I went around opening and closing every door and nothing changed until I opened and closed my trunk, the light goes out.

Sometimes the door ajar light will remain on once after I close the trunk, but if I have the car running and I push up and down on the trunk with it NOT popped, I can see the door ajar light flicker inside the car on the dash.

I assume it is a sensor in the door latch system, but I would just like to know if anyone has an idea what exactly might be going on here and how I could go abouts fixing the issue, thanks!

 

Most likely its a internal fault in the lock assembly. Not alot you can do apart from replacing it.