How does the headlight switch work for 2006 S40? The (0) position keeps the xenon on when car is in ignition. The parking lights, keep the headlight off, however, when the car is off the parking lights remain on. The headlight position, also keep the xenon on at all times when the car is in ignition. Is there a selection to keep the headlights off at all times?

Question edited for typos and English :>D

Google

year make model fuse box diagram

https://www.google.com/search?q=2001+chevy+tahoe+suburban+fuse+box+diagram

It could also be the switch. Or coincidental failure of both bulbs. Check with a test meter.
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There is an issue, you have a dead short in the circuit, no quick fix for this. You must first get a wiring diagram of the entire circuit and then follow it until you locate the shorted wire or component.

they are dual filament bulbs so the tail light filament might have blown and not the stop light , replace the bulb to check

Either someone wired the light power directly to a ignition powered fuse or the light switch itself has shorted out in the on position. I would try to chase the wires first and if you do not see anywhere that they were messed with, then try a new switch. (check if your tail lights are on with the head light.) if the vehicle was ever sold in Canada they have a law all cars have to have full time headlights to operate.

Hope this helps

1991 Ford F150

Vehicle Battery Positive Wire (+): Yellow
Vehicle Battery Positive Wire Location: Ignition Switch Harness
Vehicle Ignition Wire (+): Red/Light Green
Vehicle Ignition Wire Location: Ignition Switch Harness
Vehicle Second Ignition Wire (+): N/A
Vehicle Second Ignition Wire Location: N/A
Vehicle Accessory Wire (+): Gray/Yellow
Vehicle Accessory Wire Location: Ignition Switch Harness
Vehicle Second Accessory Wire (+): N/A
Vehicle Second Accessory Wire Location: N/A
Automobile Engine Starter Wire (+): Red/Light Blue
Automobile Engine Starter Wire Location: Ignition Switch Harness
Automobile Second Engine Starter Wire (-): N/A
Automobile Second Engine Starter Wire Location: N/A
Factory Anti-Theft System: None
Factory Anti-Theft System Type: None
Car Key Sense Wire (-): Black/Pink
Car Key Sense Wire Location: At Steering Column Harness
Car Neutral Safety Wire (+): N/A
Car Neutral Safety Wire Location: N/A
Car Tachometer Wire (-): Tan/Yellow
Car Tachometer Wire Location: At Ignition Switch Control Module in Driver Fender Well
Car Speed Sense Wire: Gray/Black
Car Speed Sense Wire Location: Pin #3 at PCM Mounted on the Firewall
Car Parking Lights Wire (+): Brown
Car Parking Lights Wire Location: At Headlight Switch or Driver Side Kick Panel
Car Brake Lights Wire (+): Green
Car Brake Lights Wire Location: At Brake Switch Above the Pedal
Car Reverse Lights Wire (+): Black/Pink
Car Reverse Lights Wire Location: At Switch on Transmission
Car Horn Wire (-): Blue
Car Horn Wire Location: At Steering Column Harness

Sorry friend, this is as far as i can go to tel you how to hot wire the ignition. But with the color codes you should be able to figure it out, Good luck and keep me posted.

If you visit many forums for Elantras, you will see that frequent headlamp failure is very common. It has been discussed over and over again and it is thought that always turning the lights off and on via the stalk switch is recommended. If you leave the light switch in the on position, when you start your car, the lights briefly flash on then off again as you turn your ignition to the start position and then turn on again as you release the key to return to the "on" position. This may be causing a power surge which creates stress on the bulb filament and can only be avoided by using the light switch instead of the ignition to power up the headlamps.

try to turn lights on manually instead of using auto lights may have been manually over-ridden

It's not the ignition switch. Someone has been playing with the wiring. What was done to your car? Did someone wire up something to work that didn't or did someone install something that had to be wired like a stereo? Somewhere the parking light circuit has been wired to the ignition 1 circuit.

I haven't tried this on my Volvo, but found it on a forum by googling "volvo turn off daytime running lights" (without the quotes.


Try the following sequence:

Turn the headlight switch to the middle position "parking light".
Turn the ignition key in position II.
Pull the turn signal lever towards you and hold it while turning the headlight switch to position 0.

Have you checked that the headlight switch is in the right position? Are the headlights or parking lights still on when the key is removed?

If so, then rotate the lamp switch to the correct position and the buzzer will go off. Headlights and parking lights are not controlled through the key circuits.