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Headlight scratching noise 1984

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Old Oct 10, 2020 | 07:59 PM
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Loyd H Tom Kruse's Avatar
Loyd H Tom Kruse
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Default Headlight scratching noise 1984

What signals the motor to go up then down when turned off? I know the middle red wire is always hot. Guessing that when it gets a solid ground it goes up and solid ground to go down. Missing something that will get the noise to stop and suspect the battery will then stay charged. Please share your thoughts
Tom Kruse
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Old Oct 10, 2020 | 10:44 PM
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Here's the diagram for my '87 which I believe is the same (note that the yellow wire doesn't show on the image):





Last edited by jv9999; Oct 10, 2020 at 10:46 PM.
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Old Oct 12, 2020 | 04:56 PM
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Tom Kruse
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Thank you for your effort to help. The problem seems to be a grounding issue. I will use your diagram and keep digging. I replaced the gears in the motor and that is how I got it to this point. I will take motor apart and examine the wiring carefully (replace brushes while there). Currently the hot wire when the lights are up becomes the ground when the lights are down (middle wire in the connector plug). I will get it figured out
Thanks,
Tom Kruse
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