I built an engine and it runs. I welded coil overs and they work. I've built darn near every nut and bolt on the car an everything seems to work just fine, except for one thing. And it's driving me nuts.
One of the headlights on the Celica won't go down. If I crank it down manually, it will come up again when I turn on the lights, but not back down. I replaced the whole Assembly with one from the junk yard. Still doesn't go down. Which makes sense when I think about it. The motor works fine, since it will go up.
I replaced several little boxes and it didn't fix it. I pretty much just have no idea. What makes the stupid lights go back down?
1984 Toyota Celica if it matters, but I'm assuming all these systems are probably similar. I'd really like to get this fixed.
Unplug both with them up, leave it that way.
So you got two with the same problem?
In reply to DoctorBlade:
Well, that's what I want to figure out. Is it in the light, or is there some controller somewhere that, uh, controls that?
If the other goes up and down fine, I'd be thinking you have a broken wire or bad relay (down signal)
I don't know if the manuals at work go back that far, but I will look for a schematic monday
Woody
MegaDork
9/14/12 8:05 p.m.
When there's a problem in the system, they probably fail to the raised position.
In reply to warpedredneck:
I'd appreciate it. I have to assume there's a relay somewhere but I've had zero luck finding it. I traced a bunch of stuff on the interior and changed out a box under the hood that I was sure would fix it. No luck yet.
Woody wrote:
When there's a problem in the system, they probably fail to the raised position.
That would appear to be the case.
just found this little didbit on a celica forum
hope it helps
If your headlights raise but don't lower when you switch them off, then
> it is the relay control module located on the steering column under the
> dash, near the brake mast. cylinder push rod. It is in a green plastic
> housing about 2x1.5x1.5. A new one will run you about US$68 plus tax.
> This was the problem with my '83 Celica and now it works fine. If you
> know someone who is very good with electronics, have him replace what's
> wrong as this module just contains a small circuit borad with some
> transistors and resistors. (I can't see how Toyota can justify 68 bucks
> though).
> This control relay can be tested by first unbolting it from that panel.
> Remove it's metal cover by bending back the lips that hold the cover in
> place and then pulling it off. Inside, you will see two large magnetic
> relays and a couple of diodes. Use a screwdriver to close the contact on
> one relay at a time. When you do this, the corresponding motor should
> run continuously, moving the light up and down. If this doesn't happen
> then the relay is bad and must be changed. This part unfortunately
> costs about US$100 at your friendly Toyota dealer.
fast_eddie_72 wrote:
In reply to DoctorBlade:
Well, that's what I want to figure out. Is it in the light, or is there some controller somewhere that, uh, controls that?
Hahaha this made me laugh. :-) You sound like me!!!
Sounds like you have some good potential solutions, keep us posted!
i just copy/pasted>
sorry about the one long sentence
In reply to warpedredneck:
warpedredneck wrote:
If the other goes up and down fine, I'd be thinking you have a broken wire or bad relay (down signal)
I don't know if the manuals at work go back that far, but I will look for a schematic monday
I am thinking a relay. Either wired wrong, defective or replace with a normally ON when it should be normally OFF.
If the motor drives it both up and down, then the relay is reverse wired or the motor is.
