Thread: 6v DRL?
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Old 08-06-2016, 06:45 AM   #11
fdryer
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Join Date: Jan 2006
Location: NYC
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2003 L-Series 3.0L Sedan
Default Re: 6v DRL?

It's not about voltage range. It's understanding that HID lights will not work in Saturns with drl's using series wired lights. It's also the only reason GM couldn't install HID lights in the S-series, L-series, Ions, Aura's, and Outlooks. All have their lights wired in series in DRL mode then switch to parallel mode at night. Vues use a resistor instead of series wired headlights to do the same, reduce current for DRL mode then bypass the resistor for full power at night.

Your high beams are used in DRL mode; they're wired in series as shown in the simple diagram. At night the DRL mode is switched automatically to parallel wiring so each lamp receives full 12 volt power. In DRL mode your high beams see half the current they normally have. When not in DRL mode they receive full current. Hid lights work only with full current and will not work in DRL mode if you add HID lights as high beams.

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