headlight messing up!!!!!

[smoore]

o.k. my headlight doesn't go all the way up on the driverside and stops short. then when i put the lights down the light goes up about 1/2 inch before it goes down all the way, so i turned the little knob behind the light and got it all the way up and then turned the light on and off and it did the same thing the again, the light is about 3/4 inch to low when up
next i have a couple of lights from a 99' nsx laying around in my garage and switched the motor on it just incase the teeth we're striped or something in the motor and the light still does the same thing
i then switched the relays for the lights and it still did it.. i'm now really confused
what else could it be?
my friend at the dealer took a quick look and he too was baffeled
anybody please help me it's driving me nuts
stuart

 

[Acuraphile]

Have you fixed this yet? It's very puzzling to me, and I have had no revelations.

You said you had switched the relays. Did you switch the Headlight Retractor Cut Relay in the Underhood Relay Box 'A'? This has to work in conjunction with the Headlight Retractor Relay. We don't have a timing diagram or circuit description, so it's mainly guesswork as to what the Control Unit is doing as far as pulse timing. Both headlights get the same 'Up' and 'Down' pulses, but they differ in the rest of their respective circuits. The motor, gears, and cam with wipers are all one unit, so you eliminated that portion of the system. The only circuit left is the Control Unit. I am interested to know if the headlight assembly has any mechanical binding which would keep the motion of the retractor from continuing for the last small amount of travel. But, I really doubt if the gearing and the electrical design depends on inertia, and instead may reverse the motor current for a split second as the 'Up' signal is cut off by the cam. The only position adjustment seems to be in the 'Down' position. I assume that is all right, but eyeball it, anyway. Does the headlight act the same way with the Retractor Switch? This switch should produce much more dramatic failures.

At any rate, check the Cut Relay, the mechanics of the Retractor, including the 'Down' adjustment, and then the Control Unit.

Good luck,

Bill

 

[smoore]

bill thanks for the reply

i flew to jfk in ny and bought a headlight from joe at erz and gace him the old one and now the headlights are fine so who knows

p.s. you should of seen the look at bagaging when they opened my suitcase to see a headlight in there without the cover i guess it looked like a bomb or something