Wiring four headlights Options

[staerkeste]

Is there any way to wire all four headlights to come on, so you can flick between high and low, but all 4 are on at all times?
Tried searching the forum but nothing is written on it.


thanks (:

[richee3]

That won't happen without serious modification. The high beams use a 9005 bulb which is a single filament bulb, meaning it is only intended to put light out where the headlight housing aims it unlike a dual filament bulb which has a headlight housing designed to aim the light to different places depending on which filament is illuminated. The Celica's headlights were designed to only direct the light from each housing to one place, and changing bulbs won't change that fact.

You can imitate a DRL setup which will keep the high beams on at half power, but regardless you will still be aiming your high beams up into oncoming traffic which is downright dangerous and illegal, half power or not. Daytime running lights are safe during the day, but still blinding at night to other drivers.

The only way to actually do this safely would be to replace all four bulbs and headlight housings for a dual filament setup.