HOW TO: Override DRLs on a GA

[killians31]

Kevin, do you know by any chance what pin number or color the ALC sensor's wire is at the BCM? Seems that that way would be so much easier, since thats where i the drl disable wires are.

[armith]

I do believe that it is on middle connector ... pin A3 yellow/black wire. thats where the resistor would go. Some have said they removed the sensor and replaced it with the resistor.. if thats the case.. then pin B2 light green/black would be the other wire.

[Phuxed]

This is one of the best mods ever for time spent. Gonna do the independant fogs next...

[killians31]

armith I do believe that it is on middle connector ... pin A3 yellow/black wire. thats where the resistor would go. Some have said they removed the sensor and replaced it with the resistor.. if thats the case.. then pin B2 light green/black would be the other wire.

im confused, if i put the resistor in by the BCM, what wire would i connect it to? to yellow/black wire?

[tido_29]

01-02 model Grand Am

No drl
1.) I should not have to say this but first disconnect the negative terminal of the battery. (cheap insurance).

2.) Remove the middle connector as stated before in the previous posts. Now locate the brown wire (pin 8 on the bottom). This is the pin that tells the BCM that the lights switch in not in the auto setting. Cut this wire, leaving enough room to extend it to the relay.

3.)The relay: Get a standard 4 or 5 pin 12V relay. Here is how the pins need to be wired. Pin 30-->go to the brown wire that you cut (on the BCM side), Pin 87-->12V (constant), Pin 86--> ground, Pin 85-->12V (switched when key is on), Pin 87a-->no connect.
NOTE: the 12V constant to Pin 87 could also be switched I do not think that it matters.

4.)Once the relay is connected I used some double sided tape and stuck it next to the fuse box out of the way. Now you need to cut the dark blue wire and ground it just like the 99-00.

5.)reconnect your BCM and your battery and test the system. Every thing worked fine for me no SVS and no DRLs.

**Apparently this method works as well**
Ground the dark blue wire(b4) and run a jumper wire from the brown wire (pin 8 on the bottom) to the sunroof fuse on the Passenger side fuse panel.

ALC bypass
1.) Remove the ambient light sensor under the dash defrost grill.

2.) Put a 10ohm resistor in place of ambient light sensor.
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Okay. so the ALC bypass is okay.. I can just get the 10ohm resitor from Radio Shack.. but what about the DRL portion.. any pictures on that.

they lost me w/ at 3) big time

[killians31]

**Apparently this method works as well**
Ground the dark blue wire(b4) and run a jumper wire from the brown wire (pin 8 on the bottom) to the sunroof fuse on the Passenger side fuse panel.

in did it this way, and had no problems so far. its alot easier to figure out once your down there by the bcm

[tido_29]

Okay. so the Dark blue wire-- cut it and ground both ends?

and the other one.. do I cut it, or splice into it and run a wire to the sunroof fuse on the side panal?

Sorry about the questions guys.. but I am just really scared to mess this up since if I mess it up....that is $$$$$$$$

[killians31]

if i remember correctly, i just cut the blue wire and grounded it (the wire that is connected to the bcm) and then just taped off the other part of the blue wire that i cut. then shave off a part of the insulation on the brown wire then tap another wire onto it and run it to the passenger side fuse pannel.

[tido_29]

Oh okay.. cool!!!

[AeR0]

does anyone have a howto with pics for doing a 99 no drl no alc

[mightypan42]

There's a pic of where to ground one of the wires (I forget which) on post #40. Otherwise, just read the directions in the first post a few times, follow them exactly, and it'll come out fine. It's pretty easy to do.

I had a 99 SE as well.

[armith]

I checked around for some old pictures of one of the members installs.. the pictures aren't as blatently obvious as far as showing exactly which wire is which.

For the 99s though its pretty simple stuff. DRL's is simply tie the dark blue wire (b4)to a grounded source (I used the bracket where the accent light is)..

This has got to be in the top 20 for longest running threads..

how do you take out the ALC sensor in the defrost vent so you can put a 10 ohm resistor in place of it?

[gaowners32]

Ok for a 2004 model will this work or can i just pull out fuse 22 what says drls?

[Rich]

Originally Posted by SC/TGrandAm

Armith- I just put together or got all/or most of the info together for the DRL/ALC disables thru the years.

Hopefully It will help you and others out a little more.



99-00 model Grand Am

No drl
at the BCM, locate Connector C2 (center)

On the "B" side row of pins, locate the dark blue wire (b4)

Cut this wire, leaving as much as possible still attached to the BCM.

Now simply add on a piece of wire to the side that is still connected to the body control module. attach this wire to a good ground, like a screw in the metal part of the dash behind the glove box or I used the interior light mounting bracket screw right there next to the BCM.

The BCM now sees this to mean that the regular headlights are on, and so it energizes the relay that turns off the DRL’s.

ALC bypass
at connector C2 find A3 the yellow/black wire, and B2 light green/black wire.. be careful because there are two light green/black wires on that connector.. the one you want is closest to the yellow/black wire.

cut these wires again leaving as much wire as possible attached to the BCM.. simply tie the two wires together and tape them up real good. (this is the same thing as removing ambient light sensor and adding a jumper wire)

The BCM will now think that it is daylight all the time and it will not energize the relay to turn on the headlights.



01-02 model Grand Am

No drl
1.) I should not have to say this but first disconnect the negative terminal of the battery. (cheap insurance).

2.) Remove the middle connector as stated before in the previous posts. Now locate the brown wire (pin 8 on the bottom). This is the pin that tells the BCM that the lights switch in not in the auto setting. Cut this wire, leaving enough room to extend it to the relay.

3.)The relay: Get a standard 4 or 5 pin 12V relay. Here is how the pins need to be wired. Pin 30-->go to the brown wire that you cut (on the BCM side), Pin 87-->12V (constant), Pin 86--> ground, Pin 85-->12V (switched when key is on), Pin 87a-->no connect.
NOTE: the 12V constant to Pin 87 could also be switched I do not think that it matters.

4.)Once the relay is connected I used some double sided tape and stuck it next to the fuse box out of the way. Now you need to cut the dark blue wire and ground it just like the 99-00.

5.)reconnect your BCM and your battery and test the system. Every thing worked fine for me no SVS and no DRLs.

**Apparently this method works as well**
Ground the dark blue wire(b4) and run a jumper wire from the brown wire (pin 8 on the bottom) to the sunroof fuse on the Passenger side fuse panel.

ALC bypass
1.) Remove the ambient light sensor under the dash defrost grill.

2.) Put a 10ohm resistor in place of ambient light sensor.



03-04 model Grand Am

No drl
Pull DRL #22 relay (located in the under hood fuse panel)

ALC bypass
1.) Remove the ambient light sensor under the dash defrost grill.

2.) Put a 10ohm resistor in place of ambient light sensor.

one page back man.

[ancona46]

yank the 22 relay and it will work for an 04

[gaowners32]

Originally Posted by ancona46

yank the 22 relay and it will work for an 04

Another question will it throw out codes? On the Dash?

[Mirage85]

Originally Posted by gaowners32

Another question will it throw out codes? On the Dash?

No

[gaowners32]

Ok no codes thrown but when i turn on the car the drls still turn on. And i dont want my new hid bulbs to be on all the time when i drive only at night. I pulled the fuse #22 next to the horn fuse

[ancona46]

its not a fuse u need to pull its a relay