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Old 07-05-2008, 10:57 PM   #1
password:ej20
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Default 02 wrx driver side headlight dont work,only works on high beam>>help!

well i was cruising with couple friends today and noticed that one headlight was out

heres what ive done so far to figure out the roots to this weird problem


1)changed the bulps and same thing, one works one doesnt
2)switched on high beams and both work
3)changed all fuses, still same problem
4)switched off fogs and still the same problem

what can this be??? driver side headlight doesnt work on low beams but works on high beams

should i change out the complete wiring??
would it help any if i buy a h.i.d. kit??
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Old 07-05-2008, 11:15 PM   #2
Mulder
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Have you been using aftermarket bulbs, perhaps "superwhite" blue-coated ones? If so the bulbs may have overheated and damaged the harness and connector. Inspect it carefully, if it is damaged you can get replacement 9007 connectors w/wires at most parts stores.
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Old 07-05-2008, 11:32 PM   #3
password:ej20
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youre so right dude, the car does have aftermarket piaa branded headlights

does this mean i have to replace the whole complete harness/connector

lastly (sorry for bieng a noobie) but what exactly is the harness?? does it run all the way into the firewall??

its so weird how the lights do work on high-beams, which im guessing would not work if the harness/connector is bad

PLEASE correct me if im wrong on this
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Old 07-05-2008, 11:38 PM   #4
Mulder
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The low beams are on most of the time, so the low-beam pin on the connector is probably the one that is heat-damaged. If you pull the connector off the bulb and look inside you'll probably see it.
The harness is actually the wiring that runs through the engine compartment, you don't want or need to replace the whole thing although that's all that Subaru will sell you for $$$. All you need is a replacement plug for the headlight with wire pigtails attached, which gets spliced into the existing harness to the headlight after the damaged part is cut off. It's a DIY, IF you know how to do proper wiring and have the right tools. Otherwise have someone who knows what they are doing fix it for you.
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Old 07-05-2008, 11:44 PM   #5
password:ej20
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makes alot of sense

this other guy is telling me its the switch that has gone bad on me (as in the switch thats on the steering wheel)

could that also be an issue??

anyways you know what youre talking about, thanks alot for the help
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Old 07-05-2008, 11:51 PM   #6
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A problem with the switch would result in both low beams not working. It's not that.
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Old 07-05-2008, 11:55 PM   #7
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true that, too bad im too lazy to do it up tonight, but will surely work on this first thing in the morning

should i run the same bulps?? or would it help switching to a branded h.i.d. kit
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Old 07-06-2008, 12:10 AM   #8
Mulder
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No, please do NOT put HIDs into your stock lights. For more on that see the HID FAQ at the top of this forum.
And, to prevent this from happening again, once you repair the harness you should use ONLY stock bulbs or equivalent, NOT the same ones. Off-the-shelf 9007's, 55W with no blue coating and nothing billed as "superwhite", "HID look" etc. if you want to avoid this same problem in the future.
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Old 07-06-2008, 12:12 AM   #9
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don't do hid on your stock headlights.. there are other bulbs that would be pretty sufficient for your needs at the moment

i've had the same problem before a few years ago.. not sure how since my car is garaged since day1 and i've had the car in southern california the whole time.. but the connects got corroded and made one bulb flicker on and off.. got new plugs and everything is fine.. g'luck with yours
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Old 07-06-2008, 02:22 AM   #10
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The important specs to look at when buying lights are MCSD and rated life (besides connector and wattage). A quality bulb will have a low beam rated at 1200" hours and MCSD of 75+
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Old 08-07-2008, 03:33 PM   #11
Scott_2.5TS
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subscribed... my headlights are doing the same thing too

does the low beam and high beam use the same bulb?
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