High Beam Wiring Driving Lights

[Silver23]

That is just for powering the high beam. The low beam (and DRL on Lariat) have their own power input circuit.

The diagram doesn't show what's happening within the headlamp assembly because it's irrelevant; it's not serviceable. As long as its getting power, has ground, and is talking to the BCM it should Just Work.

Sense the BCM controls all these powers to the different lamps seperatly, why control them with a module inside the headlamp too?

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[Defconxzero]

Sense the BCM controls all these powers to the different lamps seperatly, why control them with a module inside the headlamp too?

it may be a cheaper way to control all the circuits for the different systems in the vehicle. Thinking about it from an electrical engineering standpoint, Instead of having a complex BCM with many circuitboard components to produce and control specific voltages for all the systems, you can have it be more digital, where a microcontroller or an IC runs the software to produce the controlling signals on the LIN. Yes the hot headlight wires and relays are already there but A length of thin gauge LIN wire might be cheaper than the alternative. Just a possible theory since everything in this world boils down to money, cause yea otherwise it doesn’t seem to make sense to me.

 

[Silver23]

it may be a cheaper way to control all the circuits for the different systems in the vehicle. Thinking about it from an electrical engineering standpoint, Instead of having a complex BCM with many circuitboard components to produce and control specific voltages for all the systems, you can have it be more digital, where a microcontroller or an IC runs the software to produce the controlling signals on the LIN. Yes the hot headlight wires and relays are already there but A length of thin gauge LIN wire might be cheaper than the alternative. Just a possible theory since everything in this world boils down to money, cause yea otherwise it doesn’t seem to make sense to me.

Ya, cheaper and simpler would seem the way to go. My point is the control is already there at the BCM with seperate wires. Why put another IC in the headlamp? Obviously the wires are big enough to run the lamp and they are controlled too.

 

[Defconxzero]

Ya, cheaper and simpler would seem the way to go. My point is the control is already there at the BCM with seperate wires. Why put another IC in the headlamp? Obviously the wires are big enough to run the lamp and they are controlled too.

I just thought of a possible reason. I thought maybe I could bypass the BCM and tap into a wire going from the headlight control switch that goes TO the BCM, but that wire is a single LIN wire for all the buttons on the switch module as well- dead end. Then it occurred to me, maybe the auto lamps are the most likely reason for this whole computer controlled LIN setup. Maybe its better to have the source wire going into the headlamps always hot so that the computer can control the auto lamps without the more “mechanical” traditional relay doing the switching? Idk just another theory.

 

[Darnon]

The BCM is functionally shared with the Bronco Sport and Escape which in some configurations have halogens. So it's job is mainly providing power and overcurrent circuit protection. (Note that only the high-beams have actual physical fuses while all other exterior lights have programmed current margins the BCM enforces.)

So the LED arrays still need their own electronics to provide regulated power supply and variable power output for DRL operation. It also means they can self-report outage or circuit errors.

 

[24Bret]

So, it looks (and sounds) like the "old fashion way of controlling the "add-on" fog lights, with a relay triggered by power to the high beam, does not exist in the Maverick So the "only" way to get fog/driving lights is to do the Ford F-150 switch and the wiring from the BCM as outlined in another post.

 

[Silver23]

So, it looks (and sounds) like the "old fashion way of controlling the "add-on" fog lights, with a relay triggered by power to the high beam, does not exist in the Maverick So the "only" way to get fog/driving lights is to do the Ford F-150 switch and the wiring from the BCM as outlined in another post.

yes, or simply wire up your own switch. But of course it won't work off the high beam.

 

[Defconxzero]

@A.Bursell for anyone interested, I was able to find a work around to tap into the High Beam signal to power aux lights to come on with the high beams automatically!!
It is VERY tedious and almost no one else will want to do this.
I bought a broken headlight super cheap on eBay to mess around with. used a multimeter to find the signal wire and tested that tapping it wouldn’t affect the function and it seems fine. It is 0-9v. I saw this thread: https://www.mavericktruckclub.com/f...rance-package-front-headlights-edition.39095/
and was thinking about doing this which would require taking the headlights apart anyway. Since I was able to successfully find the signal wire inside, I figured I’d get two birds stoned at once and go for the Black Appearance Package mod. I tapped the high beam signal wire and added a pin to the back of the headlight connector. Then I made a housing for a low voltage relay and a fuse and wired it all up in the engine bay like normal.
It works great and when it’s done it’s a very clean install. But again super tedious and I understand almost no one will want to take their headlight apart to do this but IT IS possible!! here’s a few pics including what the computer inside the headlight looks like. I now have black headlights and super bright high beams

 

[Jason Bourne]

@A.Bursell for anyone interested, I was able to find a work around to tap into the High Beam signal to power aux lights to come on with the high beams automatically!!
It is VERY tedious and almost no one else will want to do this.
I bought a broken headlight super cheap on eBay to mess around with. used a multimeter to find the signal wire and tested that tapping it wouldn’t affect the function and it seems fine. It is 0-9v. I saw this thread: https://www.mavericktruckclub.com/f...rance-package-front-headlights-edition.39095/
and was thinking about doing this which would require taking the headlights apart anyway. Since I was able to successfully find the signal wire inside, I figured I’d get two birds stoned at once and go for the Black Appearance Package mod. I tapped the high beam signal wire and added a pin to the back of the headlight connector. Then I made a housing for a low voltage relay and a fuse and wired it all up in the engine bay like normal.
It works great and when it’s done it’s a very clean install. But again super tedious and I understand almost no one will want to take their headlight apart to do this but IT IS possible!! here’s a few pics including what the computer inside the headlight looks like. I now have black headlights and super bright high beams

Hey thanks for posting your solution; I think I'll give it a try myself. Would you mind posting the links for the supplies you got? (relay, pins for the harness, etc.) The 3d file for the housing for the relay would be helpful as well. Also, which wire inside the headlight did you tap?
Thanks a lot!

 

[mtree]

The Lobo has foglights. Is there a lead coming out of one of these modules that would acitivate these lamps. If there were you could use a normally-off relay to have fogs whenever that lead is live. This set up could also use a normally-on relay to driving lamps when the fog lamp lead is off. Used this set up on a '22 Outback. Fog lights always on unless you went to high beams. An aside, would the DD fog light kit wiring harness still work with a '25?

 

[Maverick123]

Forscan >> Bambi mode?
https://www.mavericktruckclub.com/f...dynamics-fog-light-install.67666/post-1120796

 

[Darnon]

Forscan >> Bambi mode?
https://www.mavericktruckclub.com/f...dynamics-fog-light-install.67666/post-1120796

Yes, you can configure fog lights to stay on when the high beams turn on. But if one wanted the lights to only turn on with the high beams that's less practical.

 

[Maverick123]

Yes, you can configure fog lights to stay on when the high beams turn on. But if one wanted the lights to only turn on with the high beams that's less practical.

It's also illegal in most places BTW

 

[mtree]

Yes, you can configure fog lights to stay on when the high beams turn on. But if one wanted the lights to only turn on with the high beams that's less practical.

Expanding on that on my just traded in Outback '22 I had aux fog lights relayed into the stock fogs, aux driving lights relayed on whenever the stock fogs were not on. Thinking I could do this with my maverick if I can tap into the computer module for fogs.

 

[Pointyears]

It's also illegal in most places BTW

Yep. I had a 2002 Escape and I wired white driving lights that went on with the high beams. I failed a yearly Virginia inspection because I had "six forward white lights and was only allowed four" and wasn't swayed by my argument that only 4 could be on at the same time as the driving lights were tied to the high beams and the fogs to the low with no override. I had to appeal to the Viriginia State Police who agreed with me that I was complying with VA law.

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