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Turn signal issue.

  • Thread starter Thread starter groundshock
  • Start date Start date
Ooops, I mis-remembered the schematic. :oops:

It only uses ONE LED for the indicator, so you are in luck. This picture shows the original and the modified circuits.

turnsignalmonitor.jpg


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So I imagine it's as simple as just soldering in a pre-wired amber LED?

Yay!

Now I just gotta figure out how to blink em.
 
groundshock said:
So I imagine it's as simple as just soldering in a pre-wired amber LED?
Click to expand...
No, not quite that easy. There are two diodes just above the LED that keep the current from going to the other side. If you follow the current from the left side, it will go through the diode just left of center, then go down through the LED to ground. Current can not go through the diode on the right to get to the right signals. The opposite happens when the right signals are on. If you don't have a yellow LED that is "wired" for 12 volts, you will also have to add a resistor. Depending on the LED, it might need a 220 or 330 ohm resistor.

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Last edited:
We have these pre-wired LEDs at work that already have the resistor built in.

That should be it eh?
 
No, you still need the two diodes facing each other, with your pre-wired LED in the middle.

Take another look at the schematic.

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OK, so Im stuck again.

Tried a 3-terminal EP34 flasher, grounded, no flash, lights dont even turn on.

Went to a two-terminal flasher, lights come on, dont flash.

Left the indicator bulb out.

Any ideas here? Im going nucking futs.
 
Fixed.

Added a 10 Ohm/10 Watt resistor in each side of the turn signal circuit, works like a charm.

On to the next stage.
 
i am having the exct same problem. put the diodes in but the electronic flasher wont work. i dont understand why putting resistors in will make it work.
 
sluggerknuckles said:
i dont understand why putting resistors in will make it work.
Click to expand...
The flasher needs a certain amount of current flowing through it to operate properly. It does not care where that current goes after it leaves the flasher. The LED turn signals don't use nearly enough current to trigger the flasher, so another path for current to flow must be provided. The resistors are that path. They must be in parallel with the signals, not in series.

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