2005 mazda 6 V-6 3.0 dohc ... low beams and fogs dont work. High beams work. checked fuses and all is well. new silverstar headlights put in about a month ago. Light symbols are registering inside car( fog light, low beam, and high beam indicators turn on and off with switch ( Properly working inside)).

find the low beam light relays
by law the fog lights can only come on with low beam
using fog lights on high beam is *******

How do two bulbs burn out at the same time? - makes no sense! If sure that the fuse is definitely good, then check out the power switch and/or relay that feeds the low beams - it could be bogus.

Check the headlight switch, multifunction switch, and the fuses.

No. Amps Circuits Protected 1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38 7.5
15
10
7.5
(15)
(20)
_
10
7.5
7.5
10
10
10
7.5
7.5
10
10
20
15
7.5
20
_
_
(20)
20
20
(20)
15
15
20
(15)
20
20
7.5
7.5
10
7.5
30 Power Window Relay
Fuel Pump
ACG
ABS/VSA
Heated Seats*
Front Fog Lights*
Not used
Rear Wiper
ODS (Occupant Detection System)
Meter
SRS
Right Headlight High Beam
Left Headlight High Beam
Small Light (Interior)
Small Light (Exterior)
Right Headlight Low Beam
Left Headlight Low Beam
Main Headlight High Beam
Small Lights MAIN
TPMS
Headlight Low Beam
Not used
Not used
Moonroof*
Door Lock
Front Left Power Window
HAC Option
Rear Accessory Socket
Accessory
Front Right Power Window
Accessory Power Socket on the Center Table*
Rear Right Power Window
Rear Left power window
ACC Radio
ACC Key lock
HAC
Daytime Running Lights
Front Wiper * If equipped

It happened to me, both low beam filaments in both new at same time (happens a lot so I'm told) The earths are in a stoopid place under the left headlight.

First it is possible that both low beam filaments in bulb are burnt. Check fuses for low beam before replacing the bulbs.

Why are you looking for the fuse? High beams not working? low beams not working? Are neither the high or low beams working? Are you sure the bulbs are not burned out? There are 4 fuses for your headlamp system, which one are you looking for?

Please review this article:
Where's The Fuse?

Check the relay headlight low beam and the fuse, and the gound wire!

The other possible malfunction would be the LiGHT SWiTCH.

Check on that first and tell me.... if u haven't got the know how, i'll guide u to fix it or u might go to ur nearest mechanic to assess the problem.

On the van you have a high beam fuse and relay. On the low beam you also have a fuse and relay. Check the fuse/relay panel for a blown fuse controlling the low beam lights. If you do not find a blown fuse have some one to turn the key on and turn on the high beam lights> During this time locate the low beam headlight relay and place your finger on top of relay, have the other person to switch from high beam to low beam lights. You should feel a click in the relay when they make the switch from high to low beam. If not replace the relay and the problem should go away. Hope this will help you.