Alternative High-Beam Connection ?

[2020Raptor]

Happy Friday.

I would like to activate my BD S8 light with the high beams.
But per FordTechOne, one should not tap into the lighting circuit to power a relay.
BCM issues down the road.

Question:
So then how to otherwise activate my S8 light with the high beams ?

Solutions ?
Is there a non-contact sensor that connects to a relay or such ?
Kinda like a tick-tester.

Or how else to git-r-done ?
Deep thoughts appreciated.

Thanks very much !

 

[Leadfoot2020]

Interested as well, I've been researching this!

 

[2020Raptor]

Below are a couple of ideas.
I would appreciate thoughts from @FordTechOne or anyone else knowledgeable.

Idea 1:
Can we tap into the low-power side of the high-beam relay to also trigger a second relay ?

Idea 2:
Can we tap into anything related to the fog lamps that are on the swankier models ?
Fog lamps go off when high beams come on.
If the wiring is the same, perhaps there is something that we can use.

Fingers crossed.
Thanks very much !

 

[snt505]

I'm sure he'll chime in. But here is an interesting thread. Sounds like if you use a low current relay and run a test in forscan, you should feel relatively safe about the BCM interaction.

https://www.fordraptorforum.com/threads/help-with-wiring-relays-for-headlights.79850/#post-1566566

 

[pat247]

Come on guys, it aint rocket science. Tap the idiot light that tells you the high beams are on.

 

[FordTechOne]

Below are a couple of ideas.
I would appreciate thoughts from @FordTechOne or anyone else knowledgeable.

Idea 1:
Can we tap into the low-power side of the high-beam relay to also trigger a second relay ?

There is no high beam relay. The high beams are powered directly by an Field Effect Transistor (FET) in the BCM.

Idea 2:
Can we tap into anything related to the fog lamps that are on the swankier models ?
Fog lamps go off when high beams come on.
If the wiring is the same, perhaps there is something that we can use.

Fingers crossed.
Thanks very much !

Possibly, but you’d have to figure out if the harness connections are actually there. Regardless, the fog lamps are driven by the BCM, so you’d have to find a way to reprogram it to recognize an input (switch) and provide the voltage output.

 

[FordTechOne]

Come on guys, it aint rocket science. Tap the idiot light that tells you the high beams are on.

There is no circuit for the high beam indicator. The data is networked.

 

[pat247]

It's shame on me for the next 30 min. then.

 

[Oldfart]

Come on guys, it aint rocket science. Tap the idiot light that tells you the high beams are on.

Wait......is this 1965?

 

[2020Raptor]

@FordTechOne thanks very much for your review.

Back to the drawing board.

I guess that I will just use a piece of twine connected between the upfitter switch and turn signal stalk.