I found online a way to disable the DRL by grounding a pin on the BCM. These instructions say that this ground 'fools' the BCM into thinking the low beams are [always] on, thereby turning off the DRL. Before I go and do this, what I am curious to know is, will that mean every time I open the drivers door with the engine off, am I going to get chimed at? Because I don't want to go through the steps to find out. Any ideas? I guess just for the rocord I'll state I'm driving a 2000 Cavalier z24.
BTW, yes, I'm new to this forum but not new to the idea of a forum, so hello. I did a search for "drl bcm" in the forum and came up empty-handed... so forgive me. Also, this seemed like the best forum to post in... forgive me if I'm wrong there, too.
Thanks, all!
Go in the main library to the How-To section
Did that too- forgot to state that. Thing is, I don't feel like dealing with those side effects it causes because that's silly, seeing as my other method doesn't have any (besides this possibility). Guess I'll try it this weekend and find out.
Ya it will probably chime at you whenever the door is open if I had to guess....
You could temporarely half ars it like I did (I got flamed for it too) but then you have to deal with the parking brake light in the dash being lit up all the time.....
The only way I know of doing it without side effects is in the how too part of the site..... but let us know about the bcm thing works if you try it.
Weebel wrote:Ya it will probably chime at you whenever the door is open if I had to guess....
You could temporarely half ars it like I did (I got flamed for it too) but then you have to deal with the parking brake light in the dash being lit up all the time.....
The only way I know of doing it without side effects is in the how too part of the site..... but let us know about the bcm thing works if you try it.
What did you do to make it stay lit all the time? Just curious..
easy just take the e brake wire and ground it out....you can easily access the wire by popping out your power window switch....
Also with the e-brake, wouldn't that chime when you drive over 5mph or whatever the limit is? That I could imagine is worse. If not, thats a fantastic idea, I suppose I can handle "BRAKE" on my dash permanently.
just pull out your abs relay under the hood. abs in the j's is a poorly desinged system anyways, only thing is then youll have abs and brake light on but no drls.
instead of disabling your abs you could pull out the drl relay......its on the side next to the door....
illdwes . wrote:instead of disabling your abs you could pull out the drl relay......its on the side next to the door....
I seen that once before. Would the car go nuts if its pulled?
To understand why the 'cut wire/ground it' method is "right" on the 00-05 cars compared to other methods, you have to look at the schematics to understand how the DRL system works. If you have a 95-99 car, you have the cluster which watches the low beam & high beam circuits... in a 00-05 car, it's the Body Control Module (BCM) which watches those circuits.
When you turn on the headlight switch to on (as in, low beam headlights on) the switch is connecting the low beams to ground.... the headlights are negative switched... the positive wires always have power to them (which is why HID kits sometimes have issues on our cars... because they're expecting a switched positive, and a constant ground, including the frame of the ballast, which usually touches ground... anyway, I digress...). The wire that you cut and ground just tells the BCM that the low beams are on, but it only really pays attention when the car is running.
The chime, that's another story. On a 95-99 car, it's the convenience centre that makes the chimes... and you have to have both the marker lights on AND the door open.... or the key in the ignition cylinder, etc... the headlights have nothing to do with chimes. In fact, the battery drain protection doesn't even include the headlights... so... if you leave 'em on, you're screwed anyway. That's beside the point.....
So... if you do the 'ground the parking brake wire' method (which only works on 95-99 cars... not on 00-05 cars).... your brake light will always be on, even when your e-brake is off.... but the DRLs won't come on. Since you have to remove the centre console to get to the e-brake wire... why not go one step further, remove the dash, and cut the one wire? It's not that hard.
And removing the DRL relay as suggested in the Library (again, only works on 95-99 cars) is a worse solution... because it makes the light flash instead!! So you have to remove the dash to cover up/remove the bulb anyway... while you're in there, just snip the f'n wire!!
That's why I call my methods (cut wire, ground it on 00-05 cars) the "right way"... it works without side effects.
Eternal wrote:Weebel wrote:Ya it will probably chime at you whenever the door is open if I had to guess....
You could temporarely half ars it like I did (I got flamed for it too) but then you have to deal with the parking brake light in the dash being lit up all the time.....
The only way I know of doing it without side effects is in the how too part of the site..... but let us know about the bcm thing works if you try it.
What did you do to make it stay lit all the time? Just curious..
I wired the sensor under the E-brake so it thought the parking brake was on all the time.... it worked..... but the light in the dash is starting to bug me... If I could go back in time... I wouldn't do it again.
