 HEDALIGHT Disperate faulty, Unexpected fault |
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| searunner |
 Jan 4 2026, 12:23 PM
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#1
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Newbie  Group: Members Posts: 18 Joined: 8-January 20 From: italy Member No.: 23,809 Region Association: None  |
yesterday coming into my garage, I hear one ritming song- under the cover of my 914 2.0 1974, one strange movement, the LEFT Headlamp go UP and DOWN
The RIGHT Headlamp stays in the closed position. Normally, I detach the battery of the car when in the garage, but I forgot this time. The car was without a KEY IN - the Light switch was off - The last trip with the car ALL was regular, and the headlamp was in working condition. I can STOP the movement, detaching the battery- but this NO was the solution, Then I searched for a better solution. Extract completely the Light switch -(with the BATTERY connected and KEY ON) I have the two headlamps is up and in stable condition - also when I START the engine and move the car, and make a long trip But if I return the light switch to the POSITION light, the LEFT Headlight return to UP_DOWN movement. Is clear that I have one short- Or one Relay issue - BUT 914 was full of relays Can someone help me, to return to a normal 914 ?? I am not a native English so overlook my errors |
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| TheCabinetmaker |
Jan 4 2026, 04:17 PM
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#2
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I drive my car everyday Group: Members Posts: 8,360 Joined: 8-May 03 From: Tulsa, Ok. Member No.: 666 |
I've had this exact problem. Mine happened in a hard rainstorm. Once it dried it was fine, but, it happened again a few years later when it was not raining. It was a corroded pin on the round relay at the headlight from the past rainstorm
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| emerygt350 |
Jan 4 2026, 07:26 PM
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#3
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Advanced Member Group: Members Posts: 3,435 Joined: 20-July 21 From: Upstate, NY Member No.: 25,740 Region Association: North East States |
You mean the relays in the frunk? What a crazy issue.
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| ejm |
Jan 5 2026, 10:23 AM
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#4
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I can see the light at the end of the tunnel Group: Members Posts: 2,713 Joined: 3-February 03 From: Massachusetts Member No.: 224 Region Association: None |
Inside the headlight motors are switches that stop them in the correct up or down position.
Swap the relays that are below the motors. If the trouble moves to the other side it is a relay problem. The switches in the motors can be cleaned and adjusted. |
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| emerygt350 |
Jan 5 2026, 11:36 AM
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#5
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Advanced Member Group: Members Posts: 3,435 Joined: 20-July 21 From: Upstate, NY Member No.: 25,740 Region Association: North East States |
You can find these relays under the protective plastic cover in the frunk. They just pull out easily.
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| Maltese Falcon |
Jan 5 2026, 06:03 PM
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#6
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914 Guru Group: Members Posts: 5,131 Joined: 14-September 04 From: Mulholland SoCal Member No.: 2,755 Region Association: None  |
QUOTE(ejm @ Jan 5 2026, 08:23 AM)  Inside the headlight motors are switches that stop them in the correct up or down position. Swap the relays that are below the motors. If the trouble moves to the other side it is a relay problem. The switches in the motors can be cleaned and adjusted. Good point ! I have cleaned these (internal discs and 'Stylus style) switches inside the headlight motor housings. These can also easily short out/ or conduct erratically >> by deposits of lube grease that drops out of the small gears in there on to the disc's. Weird... but not 'Pasta my trouble shooting capabilities ยก (IMG:style_emoticons/default/marty914.jpg) |
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