 Headlight actuating motor, Issues... |
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| Speedo |
 Aug 29 2021, 01:45 PM
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#1
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Senior Member  Group: Members Posts: 529 Joined: 7-November 06 From: Boulder Member No.: 7,170 Region Association: Rocky Mountains 
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Bench tested my headlight motors and they worked fine. Now assembled into the car they are unresponsive when I try to power the motors to adjust the throw. there are only three spades...red-green and grey. With aux 12v to the red, alternating the ground between my green and grey should work the headlight up and down. I have 12v to the red, but zero response from the motor. I tried connecting the ground to red and alternating the 12v between the green and grey and nada. What am I doing wrong?
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| SirAndy |
Aug 29 2021, 02:00 PM
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#2
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Resident German Group: Admin Posts: 41,675 Joined: 21-January 03 From: Oakland, Kalifornia Member No.: 179 Region Association: Northern California |
QUOTE(Speedo @ Aug 29 2021, 12:45 PM)  Bench tested my headlight motors and they worked fine. Now assembled into the car they are unresponsive when I try to power the motors to adjust the throw. there are only three spades...red-green and grey. With aux 12v to the red, alternating the ground between my green and grey should work the headlight up and down. I have 12v to the red, but zero response from the motor. I tried connecting the ground to red and alternating the 12v between the green and grey and nada. What am I doing wrong? Stupid question, do you have the relays in the sockets? (IMG:style_emoticons/default/idea.gif) |
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| SirAndy |
Aug 29 2021, 02:04 PM
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#3
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Resident German Group: Admin Posts: 41,675 Joined: 21-January 03 From: Oakland, Kalifornia Member No.: 179 Region Association: Northern California |
There is no up/down for the motor, it only turns one way ... (IMG:style_emoticons/default/popcorn[1].gif) |
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| SirAndy |
Aug 29 2021, 02:09 PM
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#4
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Resident German Group: Admin Posts: 41,675 Joined: 21-January 03 From: Oakland, Kalifornia Member No.: 179 Region Association: Northern California |
Wires for the headlight motor should be green/black, gray and black.
Item (62) in this diagram Item (50) are the relays Item (11) the headlights Attached thumbnail(s) 
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| Speedo |
Aug 29 2021, 04:16 PM
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#5
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Senior Member Group: Members Posts: 529 Joined: 7-November 06 From: Boulder Member No.: 7,170 Region Association: Rocky Mountains
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Wires for the headlight motor should be green/black, gray and black.
Item (62) in this diagram Item (50) are the relays Item (11) the headlights So my car is a six, and the wires are red, green/black and gray...would that matter? I checked the wiring in my son's 72 1.7 and his colors are the same as mine. Maybe I have two bad relays by coincidence? |
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| jcaps |
Aug 29 2021, 06:31 PM
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#6
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Newbie Group: Members Posts: 5 Joined: 12-March 21 From: Davis, CA Member No.: 25,314 Region Association: Northern California |
QUOTE(Speedo @ Aug 29 2021, 12:45 PM) Bench tested my headlight motors and they worked fine. Now assembled into the car they are unresponsive when I try to power the motors to adjust the throw. there are only three spades...red-green and grey. With aux 12v to the red, alternating the ground between my green and grey should work the headlight up and down. I have 12v to the red, but zero response from the motor. I tried connecting the ground to red and alternating the 12v between the green and grey and nada. What am I doing wrong? I just tested mine... In the 3 spade connector you apply+12V to the red and alternate +12V to the green and grey (not ground). There is a seperate spade connector for the ground. |
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| Speedo |
Aug 30 2021, 06:07 PM
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#7
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Senior Member Group: Members Posts: 529 Joined: 7-November 06 From: Boulder Member No.: 7,170 Region Association: Rocky Mountains
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[/quote]I just tested mine...
In the 3 spade connector you apply+12V to the red and alternate +12V to the green and grey (not ground). There is a seperate spade connector for the ground. [/quote] Bingo...both work. Thank you! Now I can adjust and mount the headlight covers and brow and hood. |
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| Speedo |
Aug 30 2021, 06:12 PM
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#8
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Senior Member Group: Members Posts: 529 Joined: 7-November 06 From: Boulder Member No.: 7,170 Region Association: Rocky Mountains
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Meanwhile, Bullethead supplied me with a decent suspension cover that needed some love. Metal worked it a bit, took it down to bare steel and treated, primed and painted in satin black. A little bit of love with new edges from 914Rubber and we are good!
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