93 240sx Pop-up headlight problem

[wolff7]

Hello,

I have a 1993 Nissan 240sx, and both my headlights will not come up or down. I have tried everything. I have searched all forums, went to local junk yards, and I even talked to a Nissan "guru" in town. At the junk yard I replaced the switch, all relays and the motors, but still there is nothing. When I hit the switch, I hear it clicking in the relay box. I manually put both motors up and down many times because I heard that might sync them back together, but still nothing. I got the car a few months ago, and when I looked in the relay box furthest from the battery, the guy was missing a relay, and had a wire going from there to the interior. Although, the wire was not hooked up to anything. I replaced that relay, but got nothing. Nothing was in the manual about it.

Thanks in advance

[leonelrr]

Might be your headlight motors are bad.. Try getting one from the junkyard, plug it and see if it moves.. If it doesn't then it's probably a fuse or something on ur wiring.

[wolff7]

Thanks for the response. I already got 2 motors from the junkyard and replaced them. I figured it was something common between the two headlights. I'm not sure if there is anything besides the relays and the switch, that can control both of them.

[wolff7]

I still have not found the problem. Can anyone help out?

Thanks

[redsx13]

Its really not that complicated, there is something simple that your overlooking. the right way to do it would be to grab a volt meter and start checking for power. if you hear the relay clicking than that really narrows it down. check it at the furthermost connection nearest to the light motor. have someone sit in the car and hit the switch, while you check for power. work your way back from there. maybe there is a break somewhere in the wire. most likely its something with the relays though. The simplest way that i can think of to fix your problem is the same thing did to diagnose my motor. Find a friend with another s13 and look over their car, see if you can find any differences in the fuse box,if not, start switching out relays and other related parts. also double check your fuses, look at them very very closely

[Hijacker]

I have a feeling that someone did a sleepy eye conversion to the car and tried to put it back to stock and failed.

Also, make sure the grey 6 prong relay is in the passenger side engine bay fusebox. It's only used for the down function, but you shoudl still make sure it's in place.

Sice they're both being affected, I would start considering what would affect both at the same time. They have a shared ground at two spots. One behind each headlight assembly. I doubt it's a grounding issue since more than the pop ups use that ground circuit.

The headlamp timer might be a culprit as well. It's bolted behind the driver side interior kick panel, but the dash switch usually bypasses it, so I don't know why the dash switch doesn't work.

A few things seem to not add up, but I'm still thinking this is all related to the timing unit.

[wolff7]

redsx13-

I will take a volt meter to it tonight, and see what I come up with. Thanks for the idea with the other S13, I'll see if I can find anyone with one.

Hijacker-

Also, when I first got the car the passenger side headlight was not even hooked up to the motor. The arm to the motor was broken, so they just bolted it to something to keep it up. I replaced the arm and motor, and hooked up everything the way it should be. Both motors are grounded.

The gray relay is there. I will look at the headlight timer tonight, but I don't really know what I'm looking for. I read something about the headlight timer in previous posts, but the person that had that problem, did not have a similar problem to mine.

[Hijacker]

I just worked on a coupe a few months ago that had the driver side headlight not working. It turned out to be a burnt up trace line inside the timing unit. We fixed the timer and the headlight worked again properly.

It's also the only common link that you haven't replaced/fixed between the two.

[flipRB240]

i have the same problem with this guy and yes i tried to do the sleepy eye. 1st i did the brown wire and 2nd i tried the one in nicoclub.com 3rd i tried the jap guy version. and now my headlights dont pop up or close down. i checked all the fuse changed the relay. still nothing

i am a member of 240sxforums.com and someone told me that someone here did a write up about this problem. but i am new here and barely go here. so how do i view all the members of this site? im tryin to look for the write up by vroom-chirp?

[TuRbOS13]

I had a problem similar to urs where one of my headlights wouldn't move up or down and the dealership I bought it from fixed it and said it was the headlight cylinder........it wouldn't rotate up or down

[S13D.W.A]

Well my friend had this problem and it turned out to be the switch so keep that in mind to change the switch from the dash board

[Andy65]

I'm trying to fix my headlight problem and came across this great article. Read where Nistech takes over and starts a diagnositics on the wiring, then follow the same with yours.zer...age=1

I'm learning so much from these forums-it's great.