Left signal light don't work on a 2005 KIA spectra

Check the fuses covering those items.

KIA Spectra (2005-2009) fuses and relays

https://fuse-box.info > kia > kia-spectra-2005-2009-fus...

Here you will find fuse box diagrams of KIA Spectra 2005, 2006, 2007, 2008 and 2009, get information about the location of the fuse panels inside the car, ...

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Fuse Box Diagram KIA Spectra (2005-2009)

https://fuse-box.info > kia > kia-spectra-2005-2009-fus...
Fuse box diagram (location and assignment of electrical fuses and relays) for KIA Spectra (2005, 2006, 2007, 2008, 2009).

KIA Spectra (2005 - 2009) - fuse box diagram - Auto Genius

https://www.autogenius.info > kia-spectra-2005-2009-f...
Apr 11, 2018 - KIA Spectra (2005 - 2009) - fuse box diagram · Engine compartment · Driver-side knee bolster.

Fuse relay box with diagram for Kia Spectra with ...

https://fuseandrelay.com > kia > spectra
In our material you will find a description of the Kia Spectra fuses and relays with box diagrams, photos - examples of execution and their locations. Note the ...

Have you tested the bulbs ?

Bad switch, bad bulb,

I think you should go for manual first after that it will be easy for u to solve your problem. I had visited this site past 2 months before for my vehicle and find it quite helpful may be you will also get something useful here
KIA Spectra 2006 4CYL 2 0L OEM Factory SHOP Service manual Download FSM...

https://fuse-box.info/kia/kia-spectra-2005-2009-fuses-and-relay

https://www.autogenius.info/kia-spectra-2005-2009-fuse-box-diagram/

I have a 1997 kia sportage I just bought and I have no dash lights how do I fix this problem ???

http://www.kia.ca/page/owners_manual

I imagine that the 2005 Kia Spectra is very similar to our 2004 MY (mid year) Spectra. On the driver's side you first must remove the cover that extends forward from the battery. There are three plastic screws across the front and one screw on the left (as you face the engine compartment) attaching the cover to a bracket. Remove these screws and set the cover aside. The passenger side has no such cover to remove. For either headlight, there is a cup-like cover approximately 3 to 4 inches in diameter. Unscrew this cover (counterclockwise); I think you only need to turn the cover ~ 1/16 of a turn for it to come off. Set the cover aside. The connector is held in place by a spring-loaded clip that looks a bit like a bent paperclip. Press the end of the clip in and then away from the body of the connector. This will release the connector and the light bulb. Remove the old light bulb by pulling it straight out. Plug the new bulb in. In my experience, the hardest part of this simple task is putting the bulb back in and lining it up correctly. There are three tabs on the metal flange at the base of the bulb that must line up with slots in the housing. Pull the retaining clip out of the way and insert the bulb into the headlight cavity and align the tabs with the slots. Push the bulb in so that it is flush then push the retaining clip down and then toward the light bulb until it hooks under a hook on the bulb. If you've done this correctly, the retaining clip will be pressing the bulb firmly against the housing. Replace the cover by lining it up and turning it clockwise until it is tight. On the driver's side, line the cover up with the mating holes. Push the three plugs through the holes then screw the plastic screws in through the plugs the expand them until tight. Don't forget to replace the screw that attaches the cover to the bracket to the left of the battery.
I've made this sound a lot harder than it is. Sorry.