Can I? Electrical

[wtrfre]

If the extent of my experience with electrical is wiring the cord on my dishwasher, can I replace a light fixture?
The exterior fixture at my front door is broken and in need of replacement. Should I consider doing this myself? 
Going to youtube and see how complicated this is, but I don't know.

[Spork]

If you've successfully wired a cord to a dishwasher then replacing a light fixture is pretty similar. 

* Power off at the panel
* test the circuit to make sure it is off
* pull the old one out
* connect black to black (hot) and white to white (neutral) and ground wire to ground wire
* turn it back on and it should work

[swick]

Also, keep in mind the person before you might not have known what they were doing and there might be mislabeled/extra cables and such. You should be able to handle it though.

[threefive]

If the extent of my experience with electrical is wiring the cord on my dishwasher, can I replace a light fixture?
The exterior fixture at my front door is broken and in need of replacement. Should I consider doing this myself? 
Going to youtube and see how complicated this is, but I don't know.

These two things are pretty similar. If you can wire a dishwasher, you can swap a lighting fixture.

[ShoulderThingThatGoesUp]

Absolutely, you can do this. The hardest part is fine movements while your arms are holding up the fixture over your head, so prepare safe ways to set things down when you need to look at it a different way.

(Unless this is a wall sconce at eye level.)

Also there may not be a proper box, depending on your house. You can buy these with a turntable jack that digs into joists in either side of the hole if you need to.

I got really good with those in my 1971 tract house that I thankfully sold. All the ceiling fixtures were just screwed into the drywall.

[CptCool]

As with any DIY you're doing (especially for the first time) - take a lot of pictures. You want to see where each wire was connected originally before taking them out of the old fixture. This is especially true if it's older wiring that may not have the appropriate hot/neutral/ground colors

[MasterStache]

If you've successfully wired a cord to a dishwasher then replacing a light fixture is pretty similar. 

* Power off at the panel
* test the circuit to make sure it is off
* pull the old one out
* connect black to black (hot) and white to white (neutral) and ground wire to ground wire
* turn it back on and it should work

Can't stress the bolded enough. In our current house I have rewired over half the house to bring it up to code and get rid of the old aluminum wiring. I found, on a couple occasions, multiple "hots" coming into single boxes. You don't want to find out the hard way as I did. Always test the circuits to ensure they are not live, even if you flip the correct breaker.