Brake Lights versus Turn Signal
Brake Lights versus Turn Signal
(OP)
Do any of you know the common way of how turn signals (pulsed signal) cancel the brake lights (steady when brake is depressed) in automobile applications?
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Brake Lights versus Turn Signal
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RE: Brake Lights versus Turn Signal
Keith Cress
kcress - http://www.flaminsystems.com
RE: Brake Lights versus Turn Signal
Now, mostly, they just keep the circuits, and the lamps, separate.
I guess the cost of a CAN bus node with drivers has not yet come down far enough to simplify the wiring more. I had expected it to amount to one fat wire and one skinny wire to each corner of the car by now.
Mike Halloran
Pembroke Pines, FL, USA
RE: Brake Lights versus Turn Signal
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If we learn from our mistakes I'm getting a great education!
RE: Brake Lights versus Turn Signal
RE: Brake Lights versus Turn Signal
The first statement is definitely true: the brake lights illuminate when the brake pedal is pressed while the turn indicator is also operating. The functions are independent: operation of one does not prevent the other, nor should it cause the other to operate Go try it if you don't believe me!
I agree that there should not be a case where braking causes the turn indicator to illuminate, nor where the turn indicator causes the brake light to illuminate. This interaction is a common problem with older Fords for exactly the reason you give: bad earthing. I've repaired so many for friends and family over the years that I have lost count. I think all were Fords except for my Renault Laguna. I don't think I said all UK cars suffered from the problem, just that when it does happen it is very often a Ford which is affected.
Have we dragged this thread sufficiently off topic yet?
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If we learn from our mistakes I'm getting a great education!
RE: Brake Lights versus Turn Signal
RE: Brake Lights versus Turn Signal
RE: Brake Lights versus Turn Signal
Bill
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"Why not the best?"
Jimmy Carter
RE: Brake Lights versus Turn Signal
In Canada (and elsewhere), all cars are now equipped with Daytime Running Lights (DRL).
Some poorly-designed cars combine the DRLs with the front turn signals. The net result is that you often see a car coming towards you with one light on and one light off. For just about a second you have no idea if they'll be turning left, or right, or if they simply have a burned out bulb. You have to wait for a second or so to see if and which light actually completes the off-on blink cycle to figure out their intentions.
Anyway, this circuit would be virtually the same function as the old Ford (and others) combined brake lights and rear turn signals.
RE: Brake Lights versus Turn Signal
RE: Brake Lights versus Turn Signal
Keith Cress
kcress - http://www.flaminsystems.com