Fog lights with high beams

[Bigdaddydodge75]

Hello to all Ram enthusiasts. I am new here. I'm sure this has been covered before but how can I keep the fog/driving lights on when high beams are turned on? Thank you in advance for info

 

[Bigdaddydodge75]

It's a 2018 ram Express btw

 

[jdavila99999]

Don’t know that you can....


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[relrobber]

The dealer has to enable it with their diagnostic machine.

 

[pacofortacos]

In many states it is illegal to have both on at the same time.

 

[Kapt]

It's illegal. You can only have up to four lights on at a time When your high beams are on, so are your low beams ,making four lights. That's why your driving lights won't stay on. Now that's not something really enforced or anything, but still the law. You used to be able to make a jumper wire in your fuse box that would transfer power to your driving lights when the high beams were on No idea if that is still possible in the newer trucks

 

[mjf6175]

Notwithstanding the legality issue.........yes fogs and high beams are possible. As mentioned there are wiring kits available that make high beams and fogs on at the same time possible. This can also be accomplished through a single change to the BCM. Unfortunately I believe you will never find a dealer that will do this even though he has the capability with their WIDTECH programmer. There is one more answer, it is called AutoEnginuity (AE). Ii is an aftermarket programmer used to access the BCM. I have used an AE (I rented it) to add heated and ventilated seats, heated steering wheel, automatic temperature control, and lighted door bezels to my SLT as well as high beams with fogs. Using an AE tool, the setting is found under "ECU Config 02-CBC Features". You would then scroll down to the line item heading "Front Fog Lamp Dropout Enable". This command is marked "SET" from the factory. You would change this to "NOT SET". Fogs and high beams then work at the same time.

The caveats here is that an AE is expensive to buy, about $1K (and why I rented one); you cannot just try out any settings you want or experiment with the settings in the BCM or you will brick it; as far as I know the AE works on Rams up to 2017, the company is still working on gaining access to 2018's.

 

[Bigdaddydodge75]

Thanks everyone. I will probably leave it alone for now and just run LED's. I don't want to mess around and screw up electronics or void any warranty

 

[PaulTGarrett]

That is the one nice thing about having the single-bulb headlights on my '12 2500... I'm converting them to LED's and adding aftermarket fogs... I can turn on the highs, lows, and fogs and still be under the 4-light ruling... I'm also adding a relay in the fog circuit so I can switch between fogs and driving lights...

 

[Ram Night]

Just remember that if you pur led bulbs in your high beams you will not see as far as the halogen bulbs.
If you have projectors you can install a 35 watt hid low beam kit. These use the same buld for low and high beams, along with another high beam bulb.

 

[muhfreedumz]

Joined to comment. Took my '18 in to a local dealer to look into enabling this. Tech was kind enough to show me in his Widtech2 tablet that there is no option in either the BCM or PCM tabs to enable this option, or any of the other tabs. The '18s have an additional security module that the '17s and prior did not have according to the tech.

 

[Woody1]

You can do it with the AEV procal module.

Im not sure if you can with alphaOBD

 

[1500ram12]

You can do it with the AEV procal module.

Im not sure if you can with alphaOBD

You can with alphaobd


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[JB1]

^^this

The setting is called "fog lamp dropout enable" and needs to be set to "NO"

 

[magician]

Notwithstanding the legality issue.........yes fogs and high beams are possible. As mentioned there are wiring kits available that make high beams and fogs on at the same time possible. This can also be accomplished through a single change to the BCM. Unfortunately I believe you will never find a dealer that will do this even though he has the capability with their WIDTECH programmer. There is one more answer, it is called AutoEnginuity (AE). Ii is an aftermarket programmer used to access the BCM. I have used an AE (I rented it) to add heated and ventilated seats, heated steering wheel, automatic temperature control, and lighted door bezels to my SLT as well as high beams with fogs. Using an AE tool, the setting is found under "ECU Config 02-CBC Features". You would then scroll down to the line item heading "Front Fog Lamp Dropout Enable". This command is marked "SET" from the factory. You would change this to "NOT SET". Fogs and high beams then work at the same time.

The caveats here is that an AE is expensive to buy, about $1K (and why I rented one); you cannot just try out any settings you want or experiment with the settings in the BCM or you will brick it; as far as I know the AE works on Rams up to 2017, the company is still working on gaining access to 2018's.

Where can you rent one of these things?

 

[1500ram12]

Where can you rent one of these things?

There is someone on cummins forum that rents his out. Not sure what he charges. But if you have just about any android device I'd get alphaobd for $50 off the play store and pick up the elm327 obd2 reader for ~$15 and you can enable that, drl's, lower tpms thresholds and much more.


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[waross63]

It's illegal. You can only have up to four lights on at a time When your high beams are on, so are your low beams ,making four lights. That's why your driving lights won't stay on. Now that's not something really enforced or anything, but still the law. You used to be able to make a jumper wire in your fuse box that would transfer power to your driving lights when the high beams were on No idea if that is still possible in the newer trucks

Please refer to your own state laws. All states are not the same. To make a broad statement as that is improper. With dual beam headlights there would only be four lights with high beams and fogs.

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[mjf6175]

Where can you rent one of these things?

Magician.....to answer your question first, the person who rents the "AutoEnginuity" (AE) on the cummins forum is "4X4X4Door".

Now like 1500ram12 mentions, there is the Alpha OBD program that is available that will also do fogs with high beams. It will also do MANY more things. The Alpha program and an OBD dongle that is used to connect to the truck's BCM cost about $125. A screaming deal if are planning to do additional mods to your Ram.

Should you just rent an AE or get the Alpha OBD? Depends like I said on your goals. I pasted below a link to a thread that is now the most popular on the whole forum and its about the Alpha OBD. Yes it is a massive thread. Work your way through it and you will be able to understand all that the Alpha OBD can do in addition to the fogs/high beams.

https://www.ramforum.com/threads/alfaobd.123982/

 

[1500ram12]

Please refer to your own state laws. All states are not the same. To make a broad statement as that is improper. With dual beam headlights there would only be four lights with high beams and fogs.

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Consulting local laws is always important. Most things like this are generally only an issue after midnight (a reason to pull you over for a dwi check) and first and last of the month tickets. Just about all law enforcement agencies have a ticket quota. Yes it does exist. It's a informal rule. Here in my area of NY, troopers, sheriff's and local pd have a 2 ticket per shift per individual so something like fogs with highs (if anyone knows it's illegal) would be a fix it ticket or just a reason to pull you over.


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[mjf6175]

Joined to comment. Took my '18 in to a local dealer to look into enabling this. Tech was kind enough to show me in his Widtech2 tablet that there is no option in either the BCM or PCM tabs to enable this option, or any of the other tabs. The '18s have an additional security module that the '17s and prior did not have according to the tech.

muhfreedumz....go to the link I pasted in my post just above this one. 2018 Rams can have their fogs and high beams on. Been done already. But 2018 Rams and newer need a security bypass harness that allows the AlphaOBD program to access the BCM. 2017 and older Rams do not need this security harness. The harness runs about $50-$75. If you read the thread I mentioned you will find info on this harness as well and where/how you can buy one.