Headlights run off the battery not the ignition...
The battery itself can not, but, as with any battery, the contact of positive & negative contacts can cause a spark which may constitute an ignition source.
Check the fuses
Take the negative battery cable off, then turn the ignition to the on position to leave the ignition on for 5 seconds then turn off. Then reconnect your negative battery cable.
Headlights, radio, ignition, and other elec accessories. Also turns starter to start vehicle but they replenish battery when running via alternator
Remove negative battery cable. Turn on headlights. Wait 15 minutes. Turn off headlights. Replace negative battery cable. Better, go to Autozone, ask them to plug in their OBDII analyzer and hit "Clear". that way you do not clear the corrections the computer has added to the system and will have to relearn if you remove the battery cable. just remove the negative battery cable,wait 5 min,and put it back on,, computer will reprogram all by itself. Pre 1995 vehicles disconnect battery for 10 Minutes minimum Whats with turning on headlights with the battery cable removed? They will not work anyway
Corroded battery cables. Remove the battery cables, negative first, and clean the cable connections and the battery posts. If that does not help the battery needs charging or is defective.
Perhaps they are already switched on at the switches inside the car.
because the battery is the source of the power for the headlights. there could be an issue with the battery or the alternator can be failing.
Loose or corroded battery cables? Weak battery? Bad ignition switch?
Yes. The headlights shut off after a couple minutes if the ignition is off.
Battery cables could be loose, battery could be bad, starter could be bad, starter solenoid could be bad, ignition switch could be bad. Turn on the headlights and try to crank the engine. If the headlights dim or go out look at the cables or battery. If they stay bright look at starter, solenoid or ignition switch. The neutral safety switch or clutch petal switch could do it too.
Positive to battery or fuse, light to dimmer switch (if used) Negative to negative on cars ignition coil.
It's possible that your alternator is not keeping up. Replace it and the battery. Usually when alternator fails the battery isn't too far behind. The led lights use more juice than the normal lights. Hope this helps.
On 306 l reg deisel disconnect negative on battery turn ignition key to second position reconnect negative that simple worked for me
Do your headlights work or if you open the drivers door with the keys in the ignition do you hear a warning buzzer or chime . If not , it sounds like a poor battery connection or a dead battery
Do your headlights work ? or if you have the drivers door open with the keys in the ignition do you hear the key warning chime ? If not , it sounds like a dead battery or a loose / or corroded battery cable
Because the power for your headlights is pulled from your battery. When the dashboard lights dim after turning on the headlights the dashboard lights aren't getting as much power as they were with the headlights off. With the motor running or off? The headlights draw a lot of current, but should not visibly affect other systems. There could be a problem with a worn out battery, an alternator that isn't charging correctly, or you have a bad earth between the battery and the chassis. Check the large cable connection between the battery (usually negative these days) and the bodywork, or between the engine block and the bodywork.
Had the same problem, changed the positive and negative battery cable heads, this stopped the drain. Check and see if the cables are good first.
make sure positive cable is connected to positive post on battery. negative cable connected to negative post on battery.
Something is on, as in headlights or ignition, or the battery has a dead cell. If the battery is over 2 years old it is more than likely the battery itself that is the problem. Disconnect the battery positive cable and fully charge the battery. Let it sit overnight and if it goes dead, replace the battery. If not, find out what is running it down.
The negative battery lead cable is to be connected to the negative lead terminal on the battery.
a flat battery
Check the battery. Turn headlights on - they will come on with or without the key if it has power from the battery. If lights do not come on, the battery is dead (try jump-starting) or there is a bad connection (loose cable), or a short in the electrical system. If headlights come on, but dashboard lights do not light up - check the ignition (cylinder / switch)
no it should pull trom the positi if your pulling fron the negative side you have a short some were drive safe