I have replaced the low beam bulb 3 times within 2 yrs. on both sides. this is a 2010 Mazda 6

High resistance = low currant flow = dim lights ! The way a professional automotive Tech goes about finding the problem is by using voltage drop testing to see which side of the circuit has the problem , B+ or ground ! Mastering Voltage Drop Testing with Pete Meier and Jerry Truglia

Headlight Change 2006-2010 Mazda 5 - CarCareKiosk

www.carcarekiosk.com/video/2009_Mazda_5_Sport_2.../headlight

This free video shows how to change a burnt out headlight on a 2009 Mazda 5 Sport 2.3L 4 Cyl.. Complete instructions for replacing a head light bulb on a 2009 ...

Low beam head light bulb replace 2000-2006 Mazda Mpv ...

? 5:11
https://www.youtube.com/watch?v=kblzMLRJrok
Jun 29, 2013 - Uploaded by hp11208
Low beam head light bulb replace 2000-2006 Mazda Mpv .... My step dad and I successfully replaced a headlight yesterday! :-) ...I've lost it trying to replace the bulb. if anyone can let me know I would really appriciate it thanks ! ..... 5:00. Cleaning your IAC to fix rough idle on 2000 or 2001 Mazda MPV ...

if the low beams are working you might want to consider replacing your bulbs

could be a relay switch issue as when the car is running it has daytime safety lights on.. when headlamps are required the relay may not be functioning or the control module has issues in that area of operation..

I have a 2010 mazda6 and I had hid in it now my low beam are dull could barly see when its just low beams on and I changed my bulbs to stock

possibly or a bad ground wire

To wire up an HID kit on the low beams of your Mazda 3 2005, you will need 3-4 things:
1- HID kit (bulbs and ballasts)
2- HID relay (connects your hid kit to your battery)
3- 4700uF capacitor (solves DRL flickering issue)
4- H7 hid bulb adaptor (you can also use the rubber piece that holds the bulb wires as a spacer)


Wiring diagram:
http://www.carsets.co.uk/upload/temp/images/hid-light-installation-photo-display.jpg

Tips on How to wire up:
1. HID bulb's amp wires connects with the ballast's amp wires. (There's only one way to connect them.)
2. The positive and the negative spade connectors from the hid relay connect with your vehicle's low beam connector, closest to your battery: the driver side. The passenger side low beam connector is not used and should be insulated. You can use electric tape.)
3. Each ballast is connected to one of the relay's clip connector, and it's grounded on each side to your vehicle's body. (One connector for each ballast, one for each side. You can use the screw for the body as a ground.)
4. The red wire(with the inline fuse) in the relay connects to your battery's positive terminal.
5. The capacitor sits on the relay switch. (Google for how to wire the capacitor onto the hid relay switch.) dynoxg image
6. The halogen bulb sits on an adapter. You can safely remove them from each other, and use an H7 hid adapter instead.

For more help: Moonlight Driving

if your vehicle has H4 headlight bulbs fitted you will find that they have both high & low beam filaments in them,what has most likely happened is that the low beam filaments are blown & the bulbs need to be replaced, also you may find that high & low beam circuits are on separate fuses, & also the front markers may have there own fuse check the fuses as well.......hope this helps......cheers.

try the relay for the low beam lights

Yes you are... but only the bad onemake sure must be carefully when you take out the old bulbs. take this with you to the spare part..ask the store for the same type...and some times you must say to them type and brand of your car.
when you install new bulbs remember don't touch the glass area 'cause can make light not bright...good luck