Adjusting Automatic headlights

[Fastlanev6]

Does anyone know if its possible t adjust your auto headlights to come on a little earlier than they already do? Seems like the sensor doesnt pick up the lower light levels when there's a thunderstorm and such. Thanks

[nice96gt]

Why don't you just turn your headlights on?

But to answer your question. I'm pretty sure the sensor is in the defrost vent in the dash by the windshield. All I would do is block some of the light with a piece of tape or something similar.

[Fastlanev6]

thats what I usually do....but I figure its worth looking into at least....so I never have to do it manually :)

[Ishan]

*nods* then you do it manually.. and forget to turn them off, because you never have to turn them off.

[Bjornboy81]

there's a photoresistor in the sensor. In theory, you could add a resistor in series or in parallel (not sure how the circuit is set up) to increase or decrease it's sensetivity. If you get a hold of the circuit diagram, maybe from a dealership, you could just add a resistor and accomplish what you want. Just a thought :)

[sc02grandam]

i believe the automatic headlight system uses a photoresistor.. so what you do is check the resistance at low light levels and then add another resistor in series with a value of say 10% of the value that you just checked.. that should make the lights come on earlier

[Bjornboy81]

^ do you want to lower or raise the resistance?

I guess, just heck it at low and high light levels and you could figure it out.