dillardracer

How do you turn the headlights on in an '83 firebird? The lights turn on but they're not popping up like they're suppose to. The battery I'm using is almost dead, but it's got enough power to make the heater motor work. The ignition is screwed up, but I cracked the column open and pushed the little rod thing in to the run position but I haven't got the car to start yet.

Does the car have to be running. Is there another switch I need to turn on or something other than the main headlight switch? What's the two little ***** that say open under the hood next to the headlights? Are they just bad?

I got this car just for the rearend, but I want to find out what all works so I can sell the stuff I don't need.

BlkBird408

No there is no other button to push. Just pushing the headlight switch should pop them open. Open the hood and watch the little ***** on top of the headlight motors when you push the switch. If they spin byut the headlight dont open then the plastic gears inside are stripped. If they do not spin then they are not getting power, the motors are bad, or you have a electrical problem such as a bad fuse, blown relay or bad ground.

crapper_mekanic

OK, so you want to know how headlights work? In the early model years, like yours, the headlight motors were controlled by the dash switch, and a combination of 3 relays. Later on, an electronic control module was substituted. Two of the relays are the same, and they are called "actuator" relays (KEM AR255) and are available at any parts store. They are usually mounted on the fenders, toward the front of the wheel well. The third is called an "isolation" relay, and has the same plug and wiring connector as the other two, BUT has a diode in it, and acts as a DC reversing contactor, so the polarity is reversed, and the motor changes direction. This relay is located on the rad support, passenger side. If you do happen to install three actuator relays, (common mistake), the headlights can be wound up manually, (they won't go up automatically), HOWEVER, if they are connected to power, they will go down automatically when the dash switch is turned off. As far as I have found, the isolation relay is a dealer only item. When I got my T/A, there were three actuator relays installed, that's how I learned all this with a little help from a Haynes wiring diagram, it showed the diode in the third relay. The most common failure of these relays is condensation, or plain old water getting in them, and rotting them out. I have had the occasion to crack them open carefully, clean and lube, and then re-seal them with RTV black. Hope this helps, and wasn't too long winded.

dillardracer

wow, thanks for all the info. Fortunately, it ended up just being a weak battery. I put it on the charger for a couple of hours yesterday and they both pop up now.

I also have another question though, what is the little square button next to the rear defroster switch? My 1992 camaro's interior is completely different from the firebird and I was just wondering what it is.

305q_ta86

iTrader: (1)

The one with the yellow rectangular light? Just a light. Not a button, as it took me a while to figure out.

crapper_mekanic

It may pop the trunk, but I couldn't say for sure.