Hidden strobes 3rd gen

Missing is a momentary switch (+) to select flashing pattern.
@EmergencyMedicalTaco
edit: adjusted for you...

 

Wow, that is a fantastic diagram. The only addition I'm making is a third relay in the on/off & turn/hazard cancel section. It occurred to me that I could use a third relay to disable the turn/hazard canceling relay when the whole system is not in use. The purpose being to not have it cycle every time I signal while not using the strobe system. I'll be using Bosch type micro relays so it shouldn't add too much of a bulk penalty. Thank you as well for the info on the connectors.

 

Since you have the switch before the relay, the grounds from the TURN/HAZ do nothing, there's no juice to actuate any coil.
But your drawing is incorrect.

 

At system ON, the added relay is allowing the turn (L & R) and the Hazards circuits to go to ground, thus activating all these mentioned circuits. Diodes are also facing wrong direction.


The method on my diagram is to place the "power cutting" relay in parallel with Left or Right Turns or Hazards, depending on what is selected. When turn is selected the ground side of the relay coil is in parallel with the turn select wire. (L or R)
When Hazards are selected, turns do not function but still provide the ground to de-activate the Strobe circuit power.

 

Am I mistaken in thinking the turn and hazard inputs will only be energized if I manipulate the turn stalk or push the hazard button? If there is no energy along thos lines when not signaling, then the path will be open through the top relay, but nothing will happen in the lower right relay unless the turn signals or hazards are in use

 

Yes, by tapping the wire on the turn stalk and facing the diodes away instead of to the wires, you are grounding the turns and hazards. The way these Taco works is completing the circuit to ground, not providing fused power. The unit the controls the turn (PCB) has a fused input. The turn stalk provides a ground to actuate the selection.

 

Ahhhh, I get it now. Thanks for that.

 

Will there be an issue with the relay in your diagram draining into the turn/hazard circuits, potentially energizing those circuits and causing unwanted behavior if they are meant to be grounded in their on states? or is that a non issue because they themselves are going to ground?

 

Same as before, without the turn stalk or the hazards button selected, circuit is incomplete. They essential are signal wires, not power wires.

 

OK, so I've reworked my plan with my new understanding of the nature of the signal wires. I also moved the switch to the ground side of the relays, I'm not an engineer and had forgotten about that convention.

 

Oh right! Because the turn/hazard signal wires are drawing and isolated via the first relay, I don't need the third isolating one. If you cant tell, I'm really good at overthinking.

 

Yes.

 

I have a completed drawing for the 2nd Gen. Plug & Play also...

 

I just did a tabletop test of the relay and aftermarket switch configured as in your diagram with the switch on the ground side. The illumination on the symbol (ON indicator) does not light. Interestingly, if I reverse the polarity, it lights when OFF and goes dark when the switch is ON. Moving it back to the positive side of the coil resolves this.

 

The China switch has 2 LED circuits. In the switch instructions, the wire the gets the fused input is the "changed" to the relay ground. The wire the indicated to GO to the accessory goes to ground. The other 2 wire remain the same (switch illumination).
Instruction illustration "might" wrong, so test the wires current flow before having it switching the "ground".

 

I hear you, but when configured that way I get no illumination. If I only attach the "source" wire to the ground side of the relay coil, then the indicator LED illuminates when the switch is pressed, but obviously the relay will not trigger because the path is not complete. When fully connected, the relay will trigger, but no illumination will occur. I have tested this with a different relay, and a different switch with the same behavior.

 

Some have the switch inverted or connect it inverted, having the LED on before the switch is depressed. Or just a bad switch.

 

The "obviously" part is the indicator you are doing something wrong.

 

Again, tested it with two different switches. For some reason, they work properly with the "Source" wire connected to "fused power" and the switch output connected to the hot side of the coil. If placed on the ground side of the coil, with the "source" to the coil and the drain to ground, the rely still triggers, but the switch will not illuminate.