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Old 10-15-2003, 10:23 AM   #1
bluestone
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Default DRL and HID on a 2004 WRX

These questions are 2004 specific.

I read all the threads on disabling DRL on a 2002-03, but still can't figure it out. Is the unit moved in 2004? They said you should be able to see it behind the glovebox. Do I need to take apart the glovebox to be able to see it? Comparing to the pics I've seen, I see two plugs up front but don't see the DRL unit behind it. I see the small metal box in the engine bay, and it turns off (but still hear a click behind glovebox) when I unplug that but someone said that's the wrong one to unplug for HIDs.

Second question, this is stupid, but I can't figure out how to get the H1 bulbs out. It's not the twist and pull like regular bulbs, how do you get that metal bracket off? I've tried to bend it every which way but there's not much room. Thanks.
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Old 10-15-2003, 03:24 PM   #2
jin psu
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Yes you do need to remove the glove box to get to the DRL unit. There are a ton of screws but its fairly easy to find them all. Once you have the glove box off the DRL plug will be on the right side next to the door. It says DRL Unit (or something to that affect) on the top of it. Just undo the connector and put the glove box back on.

As for your second question, I have no idea... haven't tried to do that yet.

Justin.
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Old 10-15-2003, 04:24 PM   #3
Jeff_DML
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why do you guys disable them? I dont want them but I also dont care that I have them.

just wondering


thx
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Old 10-15-2003, 04:56 PM   #4
FryRice
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I did it the reason i did it is because i can turn it off and on when i want to and i got hid which it's kinda annoy to other people
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Old 10-16-2003, 01:06 AM   #5
armand1
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Since the OEM DRLs are the normal headlights run at reduced power (the module under the hood is a resistor pack, the stuff behind the glove box handles switching), and HIDs won't turn on properly with reduced power, installing HIDs run off the OEM wiring causes all kinds of problems unless the DRL function is properly disabled.
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Old 10-16-2003, 10:49 AM   #6
bluestone
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thanks. i'll take apart the glovebox when i have a couple minutes.

now can anyone tell me how to get those bulbs out?

or anyone have those pdf service manuals... i could use them in the future
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Old 10-16-2003, 05:40 PM   #7
kgb
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It's very interesting what I found after reading the wiring diagram for a MY00 (and I don't believe they would change all that much for the later models)

Unplugging the resistor do disable DRL, and the only reason why HID would still turn on after the resistor is pulled, is because the control circuit for the relay is tied directly to ground instead of thru the low beam wire. Headlights (at least in MY00) uses common switched power, so the low beam wire on the plug actually leads to a ground. The bulk of the logic is after the low beam wire - they control whether the low beam should go thru the DRL ground (with the resistor) or thru the ground controlled by combination switch on the steering column.
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Old 10-21-2003, 10:24 AM   #8
kbcr3
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whoa, wait a sec. if you want to disable the DRL for the 2004 all you have to do is open the hood and pull the plug on the DRL unit. Its pretty easy to access. I did it in the day light in like 45 seconds. you just need to have some reasonably flexible to get in there. some people taped the plug once removed, I just tucked it behind some other wiring and wrapped it in electrical tape. total project time = 3 minutes
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Old 10-21-2003, 10:34 AM   #9
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Removing the dropping resistor under the hood is fine to disable DRLs with stock lights. However if the module is left in place, it will still switch the common headlight power on for DRL operation. If HIDs are installed and use the existing power but have their own ground (which is the proper way to wire them), then they will come on when the DRLs are activated. This is why the control module has to be completely disconnected with HIDs.
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Old 10-21-2003, 12:42 PM   #10
kbcr3
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mulder,
so you are sayig that just unpluggin the module under the hood is not an effective way to disable the DRL? And you are saying that the correct way is to remove the glovebox and unplug that module? Tell me if this is correct because I am hopefully getting a HID system soon and don't want to burn the puppies out in like a week.
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Old 10-21-2003, 01:12 PM   #11
Mulder
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Yes, that's what I'm saying if you are installing HIDs. It's not that hard to get to the module, in fact if you know what you're looking at under there you can lie on your back and reach up to the connector, and unplug it without pulling the glovebox. I've done it a few times.
But if you prefer to remove the glovebox it's not a big deal, it takes about five minutes. Just a bunch of screws (9 IIRC).
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Old 10-21-2003, 03:22 PM   #12
kbcr3
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I just ran out to my car and unplugged it. I plugged back in the module under the hood. It was too easy to get to that plug underneath the glovebox. I wasn't positive if I was looking at the correct plug, so I popped off the plastic screw on the side of the glovebox, near the door, and saw the correct module. Thanks.

In Mulder We Trust
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Old 02-18-2008, 11:16 AM   #13
hoffmanEstates
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i done HIDS on my 04 wagon 6K and i found 2 relays blue and black i noticed the blue will turn off the drl but also head lites in the process i have hard time finding black drl box. the H1 came out easy the metal clasp has to push in and down wards. i noticed that when i move the bulb in the socket it adj. light up or down so i dremeled the metal socket,comes out with 2 philips screws one on each side, so i have the bulbs pointing upwards so lite projects down wards with out having to do headlite adjustemnt. took me 2 hours for everythings i baught a MAXX hid kit has 1 year warrenty
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Old 04-04-2008, 03:00 PM   #14
SideWay
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So the proper way is to pull the DRL module from behind the glove box, AND pull the resistor pack ?

Would it be wrong to do both ? and it is the small silver box near the boost control solenoid with a CAUTION HIGH TEMP warning on it ?
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Old 04-04-2008, 03:19 PM   #15
mikeythejew
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Quote:
Originally Posted by Jeff_DML View Post
why do you guys disable them? I dont want them but I also dont care that I have them.

just wondering


thx
General Motors is good at doing studies on everything auto related. Over 12k miles, your car will burn a few gallons of gas just to power DRL's http://www.outsidethebeltway.com/arc...unning_lights/

I disconnect them because of global warming!
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Old 04-04-2008, 04:09 PM   #16
jdubya301
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Quote:
Originally Posted by mikeythejew View Post
General Motors is good at doing studies on everything auto related. Over 12k miles, your car will burn a few gallons of gas just to power DRL's http://www.outsidethebeltway.com/arc...unning_lights/

I disconnect them because of global warming!

i really find that hard to believe.. when the car is running, the alternator is always spinning.. its not like it takes extra power from the motor JUST to keep the lights on

maybe im wrong, i dont know... this theory just seems silly to me
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