On my '98 Trans Am, I want to cancel the Auto headlight on function. I've asked this a long time ago and got an answer but can't seem to find it. Please help and Thank You

 

Is this on a Canadian car? Cuz, I the US ones dont have the auto-on headlights. Or do you mean the driving lights?

 

It's a Canadian car but I don't want to eliminate the daytime running lights, I want to eliminate the lights that come on when it's suppose to be dark. I say suppose because mine turn on if I'm in the shade too long.

 

What I want to do is bypass the sensor in the front dash that detects darkness

 

Yup...that's exactly what you want to do. Just lift up the upper dash panel (the one with the defroster vent) and crimp a ScotchLock connector onto the two sensor wires so that they are shorted together. Zero resistance equals bright daylight so the headlights only go on using the switch - the automatic function is disabled.

 

go to your local electronics store (ie radioshack) and get some 1k ohm resistors. Unplug the sensor in the dash and stick one of the resistors in the socket (the end with the wires). Throw some electrical tape on it to keep dust out and keep the resistor in place, and you're done. This will keep your amber daytime running lights functional.
This will trick the sensor into reading daylight all the time.

 

Thanks WhiteBird00, Long time no see and thanks again

 

No, no, no! A resistor is neither necessary nor desirable! I don't know where that "urban legend" got started but it is false.

The sensor works by increasing resistance in the circuit as the outside light decreases. Shorting the two sensor wires together is exactly how GM disabled automatic headlights on US Firebirds (no resistor). You can unplug the sensor and put a short piece of wire connecting the two sensor wires but it's much easier and quicker to just crimp a ScotchLock over the two wires to connect them together without even removing the sensor.

 

I stand corrected. I did the resistor method and it's been working fine for 4+ years, but your way obviously works too.

 

Thanks zfastss, but now which is better, shorting it or putting a 1kohm resistor on it.

 

if you have some wire hanging around you can use that and just short it. See the link below (scroll down to the part about disabling the auto headlights only)
http://www.xse.com/leres/ss/drl.html

 

The resistor or a wire jumper, just "plugs" in and tape it up. Crimping wires just don't cut it in my book.

Heres the DRL mod and the Twilight Sentinel mod: http://www.xse.com/leres/ss/drl.html

 

I like this one.A lot easier than the one i found where you have to pop up the dash on the passenger side and go from there.

 

Sticky:
https://ls1tech.com/forums/showpost....61&postcount=8

 

No, it is not easier - it just seems like it is until you realize that it actually takes less time to lift the dash panel than to remove the radio.

When given the choice, always make a modification in the way that has the least side effects. Unplugging the DRL module disables the brake warning light (not a small thing if you ever experience a brake line leak) and the hatch release on manual transmission cars. Shorting the sensor wires has no side effects at all.

 

I have deleted the radio already,took about 3 minutes.The brake pedal should go soft if there is a leak.I have that now with my line lock leaking.And the brake light still came back on.

 

Is there a good way to enable auto lights on a US firebird?

 

How would you go about disabling the auto lights but making it accessible through a switch?

 

the switch on the left of the steering wheel will control them, the dark/brightness will not

 

Anyways, I'll go with Whitebird's suggestion but I will put a jumper on the end of the connector. This way If I should sell the car, I can put it back to original easy. Thank you all for all your inputs.