Fuse box diagram

Question edited for clarity.
Question moved to correct year make model category.

Check the fuses and relays.

Ford Taurus (2000-2007) fuses and relays

https://fuse-box.info > ford > ford-taurus-2000-2007-fu...

2003 - Here you will find fuse box diagrams of Ford Taurus 2000, 2001, 2002, 2003, 2004, 2005, 2006 and 2007, get information about the location of the fuse ...

2003 Ford Taurus fuse box diagram - StartMyCar

https://www.startmycar.com > Taurus > Fuse box
The 2003 Ford Taurus has 2 different fuse boxes: Passenger compartment fuse panel diagram. Power distribution box diagram. * Ford Taurus fuse box diagrams ...

Ford Taurus (1999 - 2007) - fuse box diagram - Auto Genius

https://www.autogenius.info > ford-taurus-1999-2007-f...
Jul 2, 2018 - Ford Taurus (1999 - 2007) - fuse box diagram. Year of production: 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007 ...

Check all the fuses and relays that deal with lighting. It may be that the switch is faulty.

Videos that may help?

https://www.google.com/search?q=2004+toyota+fielder+low+beam+not+working

Fuse box diagram Toyota Corolla ... - about fuses and relay

https://fuseandrelay.com > toyota > corolla-e120-e130
Designation of fuses and relays Toyota Corolla E120 E130 (Toyota Fielder) with photo examples and box diagrams. Cigarette lighter fuse.
Mar 30, 2021 · Uploaded by Fuse and relay

I would first check fuses. Make sure you have power to and from the bulb sockets. If not power make sure wiring, grounds and wiring connection are good. Verify you have power to bulb socket, may have bad socket but unlikely all went out at same time. My last thought make sure you have power to and from switches.
Not sure what vehicle you have but these are my thoughts in general.
https://www.youtube.com/watch?v=3zQCG06gFN0
Some vehicles may have a fuse for blinker and even separate fuses for high and low beams. You could have relays for blinker, low beam and third relay for high beam.
If you go to google and put your year make and model also put fuse box diagram or owners manual you may find your fuse box diagram.
example 2015 GMC terrain fuse box diagram
You may have several link pop up if you look through them you may find one which works.
Hope this helps.

you have 2 fuses for low beam and 1 relay for low beam. Below is a link for your fuse box diagram. If they both went out at the same time your relay controls both left and right.
https://www.autogenius.info/saturn-aura-2008-fuse-box-diagram/

Do you know how to test electrical circuit's using a wiring diagram an a voltmeter ? Reading how the headlamps are suppose to work ,then testing is how to find the problem .
Headlamps
The headlamps may be turned ON 2 different ways. First, when the driver places the headlamp switch in the HEADLAMP position, for normal operation. Second, with the headlamp switch placed in the AUTO position, for automatic lamp control (ALC). During ALC, the headlamps will be OFF in daylight conditions, or low beam operation in low light conditions. Battery positive voltage is supplied to the low beam relay and the high beam relay in the underhood fuse block. When low beam headlamps are requested, the body control module (BCM) supplies ground to the coil side of the low beam relay. This activates the relay and the relay supplies voltage to the left hand low beam headlamp through the LH LOW BEAM fuse and to the right hand low beam headlamp through the RH LOW BEAM fuse. Ground for the left hand low beam headlamp is provided at G101. Ground for the right hand low beam headlamp is provided at G102. When high beam headlamps are requested, the BCM supplies ground to the coil side of the high beam relay. This activates the relay and the relay supplies voltage to the left hand high beam headlamp through the LH HIGH BEAM fuse and to the right hand high beam headlamp through the RH HIGH BEAM fuse. Ground for the left hand high beam headlamp is provided at G101. Ground for the right hand high beam headlamp is provided at G102.

Free wiring diagrams here http://www.bbbind.com/free-tsb Enter vehicle info. Year , make , model an engine . Under system click on lighting , then under subsystem click on headlamps . Click the search button ,then the blue link .

Video's on youtube on electrical testing

On the inside of the lid is a diagram .
The headlamps may be turned ON 2 different ways. First, when the driver places the headlamp switch in the HEADLAMP position, for normal operation. Second, with the headlamp switch placed in the AUTO position, for automatic lamp control (ALC). During ALC, the headlamps will be OFF in daylight conditions, or low beam operation in low light conditions. Battery positive voltage is supplied to the low beam relay and the high beam relay in the underhood fuse block. When low beam headlamps are requested, the body control module (BCM) supplies ground to the coil side of the low beam relay. This activates the relay and the relay supplies voltage to the left hand low beam headlamp through the LH LOW BEAM fuse and to the right hand low beam headlamp through the RH LOW BEAM fuse. Ground for the left hand low beam headlamp is provided at G101. Ground for the right hand low beam headlamp is provided at G102. When high beam headlamps are requested, the body control module (BCM) supplies ground to the coil side of the high beam relay. This activates the relay and the relay supplies voltage to the left hand high beam headlamp through the LH HIGH BEAM fuse and to the right hand high beam headlamp through the RH HIGH BEAM fuse. Ground for the left hand high beam headlamp is provided at G101. Ground for the right hand high beam headlamp is provided at G102.

May be a fuse or relay. Many cars have a separate fuse and relay for low and high beams. Check the fuse box under the hood for them first. Owners manual should have a diagram of the fires box to show you which one it is.

If you need further help, reach me via phone at https://www.6ya.com/expert/forrest_f5a3e9d21691ce99

Fuse 22 and fuse 23 are left and right low beam headlamp fuses located in the PDC. 23 and 24 are high beam fuses. There is also a low beam and a high beam relay in PDC as well. If no headlights work I would check for main switch or multifuction switch (wiper/high beam) since each light has its own fuse and relay.

The 1999 Fuse Box Diagram is as follows:

Column 1 (Top to Bottom)
Driver Window Relay
Interior Lamp Relay
Driver Unlock Relay
Battery Saver Relay
Hazard Lamps (15A)
Diagnos (10A)
Cigar (20A)
Front Wipers (30A)
Air Bag (5A)
ABS (10A)
Shift Interlock (5A)
Blank

Column 2 (Top to Bottom)
High Beams (15A)
Deck Lid Release (15A)
Mirrors/Antenna (5A)
Head Lamp Illumenation (5A)
Light Out Module (5A)
EEC Ignition Coil (20A)
Brake Lamps/ A/C (15A)
Instrument Illumenation (5A)

Column 3 (Top to Bottom)
Accessorty Delay Relay
Rear Defrost Relay
Tail Lamps (5A)
Battery Saver (10A)
Wiper and Vaps (5A)
Rear Wiper (15A)
Turn Signal (10A)
Air bag/ Alt LPS (A)
Starter Relay (10A)
Left Low Beams (10A)

Column 4 (Top to Bottom)
Switch Illumenation (5A)
Def Sw Illumenation (10A)
Stop Lamps (15A)
Radio (5A)
Radio Memory (5A)
Right Hand Power Locks (20A)
Gauges/ Warning Lamps (5A)
Radio Mute (5A)
Right Low Beam (10A)

Hope this helps.

do your flash to pass lamps light when you pull the stalk towards you? If yes, the bulbs are ok.
Do the hig beams work?
Your headlamps have sepaerate fuses for each headlamp and you have a low beam relay and a high beam relay under the hood in the black box.
If everything is out, I suspect a bad headlamp switch.
Check car-part.com and look on page with * for cheapest price.

Your owner manual will identify fuses & relays.

PS, You did not recently instal high current bulbs did you? If yes, put originals back in.

HEADLAMPS

The voltage is supplied to the lamp switch through a fuse. This fuse is located in the central junction box in the left-hand footwell.
When the headlamps are switched on, a voltage is supplied to the high beam/low beam switch and to the low beam relay. The relay for the low beam is located in the battery junction box (BJB) in the engine compartment.
If the high beam/low beam switch is set to "low beam", then a voltage is supplied through the low beam relay to the low beam part of the headlamp assembly. The left and right-hand low beams are fused separately. The fuses are located in the battery junction box (BJB) in the engine compartment.
If the high beam/low beam switch is set to "high beam", then a voltage is supplied through the high beam relay to the high beam part of the headlamp assembly. The left and right-hand high beams are fused separately. The fuses are located in the battery junction box (BJB) in the engine compartment.

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Lamp Switch
Removal

1. CAUTION: Disconnect the battery ground cable. For additional information, refer to Section 414-01 .
   Remove the lower driver's side footwell trim.

1. Detach the lamp switch bezel.
   • Remove two screws.

1. Remove the light switch.
   • Remove three screws.
• Disconnect the electrical connector