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Old 01-14-2005, 09:44 PM   #1
Scooby Specialist
Member#: 67127
Join Date: Jul 2004
Chapter/Region: MWSOC
Location: Belleville, MI
3.3 I <3/h8 my GF3

Default A question about headlight bulbs (and not what you think)

Ok, so I know my headlight bulb has 2 filaments, but here's what bugs me, I know that w/ the lows, only one is on. BUT when the high beams come on, what happens? do they switch, (one comes on, the other off) or do they both come on?

I believe it's the second one (both on) but i'd rather get some input on this. (because if it's the other one (one off one on) then i'd like to re-wire them to both be on w/ the highs).
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Old 01-14-2005, 10:18 PM   #2
Scooby Specialist
Member#: 5887
Join Date: Apr 2001
Chapter/Region: BAIC
Location: Fremont, CA USA
2002 GDAA (bugeye)
797 (blaze yellow)


I don't have access to wiring diagram for the GC/GM/GF platform, but for the GD/GG bugeyes, the filaments light up separately: 1 only for lows, & 1 only for highs.
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Old 01-14-2005, 11:55 PM   #3
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Member#: 11170
Join Date: Oct 2001
Chapter/Region: Tri-State
Location: NYC
02 WRX
15 WRX/05 GTO


All dual-filament bulbs are designed so that only one filament is on at a time. If you try to run both simultaneously the bulb will quickly burn out.
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