 Strange electrical gremlin, flasher relay runs constantly |
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| bbrock |
 Jun 7 2021, 09:38 PM
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#1
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914 Guru  Group: Members Posts: 5,269 Joined: 17-February 17 From: Montana Member No.: 20,845 Region Association: Rocky Mountains 
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I like to think of myself as smarter than the average bear for chasing down electrical gremlins but this one has me stumped. My flasher relay suddenly started running whenever the key is on regardless of whether the turn signals or hazards are on. Weirdly, all of the lights work perfectly and as expected. Also weird is that I've done no work on anything remotely electrical so no clue what might have triggered this change. The flasher is the led compatible flasher modified per Spoke's instructions. As far as I can tell, all lights and everything electrical is working perfectly fine except for the constant annoying clicking of the relay. Luckily I can't hear it when the engine is running. Any ideas?
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| bbrock |
Jun 8 2021, 09:18 PM
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#2
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914 Guru Group: Members Posts: 5,269 Joined: 17-February 17 From: Montana Member No.: 20,845 Region Association: Rocky Mountains
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Thanks all. I've narrowed it down to the MC circuit by unplugging the two wires that connect to the brake warning light on the combo gauge, and then further isolating to determine it is the MC leg and not the parking brake leg. Now to figure out the problem because the MC, switch, and practically the whole car are new or newly refurbished with only 250 miles on the fresh resto.
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| Spoke |
Jun 9 2021, 11:41 AM
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#3
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Jerry Group: Members Posts: 6,994 Joined: 29-October 04 From: Allentown, PA Member No.: 3,031 Region Association: None
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QUOTE(bbrock @ Jun 8 2021, 11:18 PM)  Thanks all. I've narrowed it down to the MC circuit by unplugging the two wires that connect to the brake warning light on the combo gauge, and then further isolating to determine it is the MC leg and not the parking brake leg. Now to figure out the problem because the MC, switch, and practically the whole car are new or newly refurbished with only 250 miles on the fresh resto. Try disconnecting the MC and ebrake wires at the unit. Sounds like you're zeroing in on the issue. It could be the wires and not the switches. |
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| 914_teener |
Jun 9 2021, 12:51 PM
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#4
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914 Guru Group: Members Posts: 5,208 Joined: 31-August 08 From: So. Cal Member No.: 9,489 Region Association: Southern California |
QUOTE(Spoke @ Jun 9 2021, 10:41 AM) QUOTE(bbrock @ Jun 8 2021, 11:18 PM) Thanks all. I've narrowed it down to the MC circuit by unplugging the two wires that connect to the brake warning light on the combo gauge, and then further isolating to determine it is the MC leg and not the parking brake leg. Now to figure out the problem because the MC, switch, and practically the whole car are new or newly refurbished with only 250 miles on the fresh resto. Try disconnecting the MC and ebrake wires at the unit. Sounds like you're zeroing in on the issue. It could be the wires and not the switches. (IMG:style_emoticons/default/agree.gif) Are the two wires plugged to the correct terminals? The E brake is just a switched ground wire and a simple contact switch to the frame of the car. Make sure the contact surface is really clean |
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Posts in this topic
bbrock Strange electrical gremlin Jun 7 2021, 09:38 PM
76-914
I like to think of myself as smarter than the ave... Jun 7 2021, 10:17 PM Mark Henry I have the same issue, no LED, everything works fi... Jun 8 2021, 04:09 AM Spoke The flasher will click if it sees a current drain ... Jun 8 2021, 05:36 AM burlybryan My personal hell. I thought I had mine licked whe... Jun 8 2021, 02:38 PM windforfun A dumb suggestion perhaps, but have you tried a ne... Jun 8 2021, 02:50 PM 914_teener I'll assume your car is a '73 like mine wa... Jun 8 2021, 04:21 PM
bbrock
[quote name='Spoke' post='2922124' date='Jun 9 20... Jun 9 2021, 04:47 PM bbrock Got it figured out... I think. I pulled the steer... Jun 20 2021, 01:31 PM |
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