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09-20-2022, 02:26 PM | #1 |
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Brakelight ant turning light
I have a strange problem with my "Little Green Roadster" which I haven't been able to solve.
If I switch my left turning signal and brake at the same time, the brake light goes out. If I turn right and brake, it works correctly. Anyone familiar with this phenomenon?
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Beste Gruesse aus Deutschland, Werner Ford Model A, Roadster, 1928 Citroen 11 CV, 1947 Hercules W 2000, 1976; (with NSU-Wankel Rotary Engine), Canadian version |
09-20-2022, 02:58 PM | #2 |
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Re: Brakelight ant turning light
Hi Werner,
The only thing I can think of is to check to see if the the brakes are wired through the turn indicator switch. The wire from the brake light switch should to to the indicator switch. The turn indicator and the brake bulbs are the same. When turning and stopping, one blinks and the other stays lit. Other than that, I have no idea.
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A is for apple, green as the sky. Step on the gas, for tomorrow I die. Forget the brakes, they really don't work. The clutch always sticks, and starts with a jerk. My car grows red hair, and flies through the air. Driving's a blast, a blast from the past. |
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09-20-2022, 03:11 PM | #3 |
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Re: Brakelight ant turning light
Check all of your grounds. Funny things happen when the electrons don't have an easy path back to the battery...
I don't know how your system is wired but "normally" the turn signal and brake light share the same filament in the bulb so the brake light should go out when the turn signal is on. Otherwise you couldn't see it flashing. |
09-21-2022, 05:03 AM | #4 |
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Re: Brakelight ant turning light
Guten Morgen!
An Y-Blockhead: I have connected all electrical consumers to the frame with an additional copper braid, a bad ground connection cannot be the cause. An nkaminar: In the indicator switch, many previous owners have soldered many wires differently. Is there perhaps a wiring diagram of how these indicator switches are wired? Dankeschön!
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Beste Gruesse aus Deutschland, Werner Ford Model A, Roadster, 1928 Citroen 11 CV, 1947 Hercules W 2000, 1976; (with NSU-Wankel Rotary Engine), Canadian version |
09-21-2022, 07:43 AM | #5 |
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Re: Brakelight ant turning light
https://www.grote.com/wp-content/upl...ng-diagram.pdf
That switch is not very common, but most drawings don't show the internal switch contacts. The brake switch wire is routed to the TS switch and divided between the two rear lamps. Last edited by Badpuppy; 09-21-2022 at 07:56 AM. |
09-21-2022, 08:30 AM | #6 |
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Re: Brakelight ant turning light
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https://wiringdiagram.2bitboer.com/s...iring-diagram/ |
09-21-2022, 02:38 PM | #7 |
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Re: Brakelight ant turning light
Great links fellas, thanks !
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09-22-2022, 04:07 AM | #8 |
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Re: Brakelight ant turning light
A lot of big thanks for the detailed switch-informations. That's a very great help!
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Beste Gruesse aus Deutschland, Werner Ford Model A, Roadster, 1928 Citroen 11 CV, 1947 Hercules W 2000, 1976; (with NSU-Wankel Rotary Engine), Canadian version |
09-23-2022, 09:02 AM | #9 |
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Re: Brakelight ant turning light
The brake light system hits both left and right rear lamps at the same time through the one switch. When a turn signal switch is installed, the brake light power is split inside the turn signal switch to function the two bulbs individually. When a turn is selected, the brake light circuit is opened on the flashing side but still closed on the non flashing side.
If the brake light is not functioning on the non-selected tail light side when brakes are applied then the turn signal switch is remaining open for brake light function for that side. I don't know the configuration of the internals on your turn signal switch so that is about all I can mention. You will know the light circuit is good if the signals flash on both sides. The switch likely has separate contacts for the two functions inside so one may be dirty or damaged in some way. |
09-28-2022, 03:36 PM | #10 | |
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Re: Brakelight ant turning light
Quote:
I had to search a long time, because it worked properly disassembled, but not after screwing down the lid back together! Thanks again to the forum and the many patient helpers!
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Beste Gruesse aus Deutschland, Werner Ford Model A, Roadster, 1928 Citroen 11 CV, 1947 Hercules W 2000, 1976; (with NSU-Wankel Rotary Engine), Canadian version |
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09-28-2022, 06:23 PM | #11 | |
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Re: Brakelight ant turning light
Quote:
Nice catch ! Hope the lights are up and lighting soon. |
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09-29-2022, 07:21 AM | #12 |
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Re: Brakelight ant turning light
Interesting thread ! I’ve been following but haven’t butted in !
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