The dome light only works when I switch on and off between always on and partially on. (ie when door is opened.)

If the dome lights on your 2007 Hyundai Tucson do not come on when the driver's side or passenger doors are open, but they do work when you press the interior dome light buttons, there are a few things you can check to try to determine the cause of the issue:

1. Check the door switches: Make sure that the door switches, which are located on the inside of the doors, are working properly. If the switch is not working, it will not send a signal to the dome light to turn on when the door is opened.
2. Check the wiring: Check the wiring that connects the door switches to the dome light. Make sure that the wiring is not damaged or corroded, and that all connections are tight.
3. Check the dome light fuse: Check the fuse for the dome light in the vehicle's fuse box. If the fuse is blown, replace it with a new one of the same amperage.
4. Check the BCM(Body Control Module): The Body Control Module controls the door switches and the dome light. Make sure that the BCM is not malfunctioning.
5. Check the Sunroof switch: Make sure that the sunroof switch is not malfunctioning, sometimes that switch is used to turn on the dome light, if the switch is not working the dome light will not turn on.

It's important to have a professional technician to diagnose the issue and confirm what the problem is before trying to fix it. If you're not comfortable with troubleshooting the issue yourself, it's best to contact Hyundai dealership or a mechanic for further assistance.
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Hi. You could check for a small relay or fuse that must have burnt out. If you open the fuse box, there will a diagram of where each fuse is placed for what. Check slowly through the dashboard fuses or relays. Usually, the newer cars use simple electrics to run the entire system.

Fuse is in fuse box under the hood to the rear of the windshield washer reservoir. It is marked EF-29 but first check to see if dome light switch is set in the center mark, ie. on/door/off. 'On' is always on, 'off' is always off, 'door' is light on when door opened. Also, bulb may be shot.

check the bulbs in the lights then check the dome light delay relay

Check the bulbs.

Check inside the drivers and passenger side door jam for the little push in type switch. 9x out of 10 one or the other will be causing the short to the dome fuse. These little **** get rusty and also get alot of wear and tear from the door opening and shutting over and over. These switchs are what causes your dome light to come on when you open your door and or likewise they shut your dome light off when you shut you door. A very good way to test to see if one of these little switchs is the couprate is to take and hook up a voltage light into the negative side battery post after you disconnect the battery negative line.. If your voltage light is on than that would mean that you have a short somewhere in your system. Now, since you already know that you are blowing the dome fuse then your already halfway there. With the light on your votage light still on indicatin a short, unscrew the little switch on the door jam and disconnect the power wire from it. Check to see if the light on your voltage light is still indicating a short, if not then you can be sure that the door jam was the coulprete. Hope this is of help.

hello,
is this problem only with the drivers door? or all doors?
if it is just one door you should check the door open courtesy light switch located in the door jamb (it will be in the jamb towards the hood only accessible with the door open) its a small cylinder shaperd switch that sometimes sticks due to corrosion. if its stuck the car has no idea the door is open. if it is stuck try and free it up with some pliers and lubricate with some wd40. another thing could be that the lights are burnt out. check this by turnig your dome lights on manually by turning the headlight switch (this adjusts your gauge lights) all the way until it clicks ...your dome light should be on if not repalce bulb and try again.
As far as the door ajar beep...do you have an aftermarket stereo installed...because the stock radio makes the chime throught the drivers side speaker...
i hope this helps

First check to see if voltage is actually going to the bulb at the "dome" light etc. when you open the door... Then check to see if you have proper ground at dome light.. If not check wiring harness to the switches at door usually located in the door jam area.... remove switcvh and inspect for missing wires that go to the dome light some times the dome light is connected to a switch on the dash check this first....basics always first, fuses and connections then fallow the wire as a last resort..

I found a paritally blown fuse. When the fuse blew metal pieces ended up partially making contact. After replacing the fuse everything worked great.

my dome light wont turn on at all and i dont know where the fuse is iv checked all my fuses and there fine could it be a capasiter