headlights are next

i put new gears in my headlights today rh works great left side the motor does not run.i have ohms across the motor no power to the connector i checked the connectors they seem to be fine. its a 85 with the 2 wire upgrade i asume they work  like window motors reverse polarity motors sounds like the module ha?

2wire upgrade? do you mean the 88 up system? also, can you turn the motor by hand?

quote:

ORIGINAL: racerrick

 no power to the connector i checked the connectors they seem to be fine.

 
???
 
No power to the connector? You mean coming to the connector from the headlight switch?
 
Connectors are fine? You have voltage coming into the connector from the headlight switch???

I'm going to assume you have the new type system.

Disconnect both connectors at the module, you have a 4 wire and a 5 wire connector. On the 5 wire connector you have, yellow (A), red (B), white (C), black (D), red (E).  Check (B) & (E) and see if you have 12 volts. (B) is for the left motor, (E) for the right motor. If you do, you have voltage to the module. If you're not getting 12 volts to (B), which is the left side, then you could have a bad fusible link or a bad wire.

If there is power to the module, check and see if (A) has 12V only with the headlight switch on . Then check if (C) has 12V with the headlight switch off. If you don't, you could have bad wiring or a bad headlight switch.

If everything above checks out alright, you have power to the module.

With both connectors still disconnected, open the LH light assembly about half way by hand using the manual knob. Apply 12 volts and a ground to the green/black and grey/black wires on the 4 wire connector. If the motor runs, then you probably have a bad module.

yes its the 88 up systm and the motor turns free anf locks up and down

at the 2 wire connector to the motor i have no power there rh light works fine

Ok...follow the instructions above carefully and let us know what find.

got power to the controller if i run  12v to the motor it turns but jams at the end of the cycle. i turn the know and it cycles the other way and jams again. i asume im not killing the power soon enough and its jaming.if i stop short it eill run both ways with no problem.so i guess its the controllerill have to order 1 monday thanks for you help. oh i left the controller hookes from last week and the new battery was dead i hope the new controller fixes it. i did forget to metion the lh motor would run when ever it felt like it sometimes it woke me up in the middle of the nite thanks again

Hi Rick....definetly sounds like the control module, at least you know what the problem is now. Should be an easy fix from this point.

quote:

ORIGINAL: racerrick

. i did forget to metion the lh motor would run when ever it felt like it sometimes it woke me up in the middle of the nite thanks again

 
 HUH??? Wakes you up? You got GOOD hearin' there dude! Unless you sleep in the vette...
 
Sometimes I do that too, but only when I'm drivin'

my driveway is outside my bedroom window.quiet place to live

new controller on the way will keep you updated

update inatallrd new controller  headlights on no flip turn off and back on flip. over and over in a row it works fine let it set 45 sec will not flip on first try but 2 nd its fine.so im glad they flip but it would be nice if it did it the first time.

quote:

ORIGINAL: racerrick

update inatallrd new controller  headlights on no flip turn off and back on flip. over and over in a row it works fine let it set 45 sec will not flip on first try but 2 nd its fine.so im glad they flip but it would be nice if it did it the first time.

 
Hi Rick, I take it that both are opening, when they do open. On the 5 wire connector you have, yellow (A), red (B), white (C), black (D), red (E).  The next time they don't open, check and see if (A) has 12v with the headlight switch on . Then check and see if (C) has 12v with the headlight switch off. If you don't, you could have a bad headlight switch too.

missed detail i have 12v at both feed wires. the switch did get hard to move so i took it apart cleaned it and put it back togther.might be a cheap fix if it is it

quote:

ORIGINAL: racerrick

update inatallrd new controller  headlights on no flip turn off and back on flip. over and over in a row it works fine let it set 45 sec will not flip on first try but 2 nd its fine.so im glad they flip but it would be nice if it did it the first time.

 
What can be happ'nin' on the second switchin', that ain't happ'nin on the first switchin'???
 
And does it take 2 switchin's to close the assembly?

they light up and no flip the first time. 2nd time the work fine not the same speed but the both flip to lock and close perfect on the first time

"B" & "E" are the feed wires and should have 12v all the time.
 
 "A" should have 12v, only with the headlight switch on, it shouldn't have 12v with the switch off.
 
Just clarifying that, in case we're misunderstanding each other.

quote:

ORIGINAL: racerrick

they light up and no flip the first time. 2nd time the work fine not the same speed but the both flip to lock and close perfect on the first time

 
And both are doin' the same trick exactly the same way every time???

nope we are on the money the wires are hot when thery should be

quote:

ORIGINAL: cwb

quote:

ORIGINAL: racerrick

they light up and no flip the first time. 2nd time the work fine not the same speed but the both flip to lock and close perfect on the first time

And both are doin' the same trick exactly the same way every time???

 
I'm wonderin' if both headlights are showin' the exact same symptoms..........

1 is quicker but both work at the same times

quote:

ORIGINAL: racerrick

1 is quicker but both work at the same times

 
Alright dude - this is a stab in the dark..... You should be able to do this with the headlight assembly in the car. This adjustment has somethin' to do with when the motor stops or starts turnin' the assembly.
 
Maybe you need to adjust the worm drive adjuster nut.
see post 32 of this thread, the first page, and for a better pic, see post 20, both pics:
http://www.corvetteforums.com/m_43558/tm.htm
I suggest before you do an adjustment of the worm drive, that you mark the exact relation of the adjuster screw and drive, to the housing.
 
Try this - loosen the lockin' nut, turn the worm drive with a screwdriver one half turn - either way. Lock the lockin' nut back, and test the headlight function.
 
If nothing is different, turn the worm drive back where it was, THEN, turn it one whole turn further - in the opposite direction you tried the one-half turn on the first try. Re-test. No change/any change? Try going back again one and one-half turns in the original direction. Probably might take :15 - :30 minutes.