Front Sidemarker Flasher Module Options

[Spoke]

There has been some interest in a module that would flash the front sidemarker with the turnsignal. The rear running/brake/turnsignal board I did for the 356 using the front turnsignal bucket from a 914 uses the same function to flash the running or brake light when the turnsignal comes on.

The flashing circuit was lifted from the 356 board and placed on this board with some modification. The board will be about 1.6in x 1in and will be enclosed in a small plastic box. The module will replace the wires which go from the front trunk into the rubber wire channel to the sidemarker and turnsignal.

Basically the wires to the turnsignal and sidemarker will be pulled out of the rubber channel and connected to the module. The module will have wires that will be fished into the rubber channel and connected to the sidemarker and turnsignal just like the OEM wiring. The OEM wiring will remain intact keeping with my goal of no cutting/screwing/gluing plug-and-play installation.


@Cairo94507

[FlacaProductions]

Maybe this is the procedure in this thread:
https://forums.pelicanparts.com/porsche-914...rn-signals.html

[Spoke]

Maybe this is the procedure in this thread:
https://forums.pelicanparts.com/porsche-914...rn-signals.html

@FlacaProductions

(IMG:style_emoticons/default/agree.gif)

This looks like the mod to make the sidemarkers flash with the turnsignals. Although it only works if all bulbs are incandescent.

This is a simplified schematic of the OEM front turnsignal, front sidemarker and rear turnsignal. Front sidemarker is independent of the turnsignal.



In the modified solution to blink the sidemarker, the sidemarker ground wire is removed and that pin of the sidemarker is attached to the turnsignal wire.

With running lights off and turnsignal active, the turnsignal input alternates between 12V and zero thus powering the sidemarker through the front and rear running light filaments to ground. The front and rear running light filaments are 5W each while the sidemarker is probably 2-3W. Most of the 12V is dropped across the sidemarker.

With running lights on and turnsignal active, the sidemarker is off when the turnsignal is on and sidemarker on when the turnsignal is off.

This is the same principle behind the foglight relay and high beam headlight. Works well with incandescent but does not work for any LEDs in the circuit.