Help! Fogs don’t work with LED’s

[Tommyd]

I have had oracle led lights installed for a couple years now. My fog lights that are halogen don’t come on with my main lights on. Only if I turn off my main lights do they come on. Any ideas?

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[Volt0]

I’m OEM led, so it might be a different scenario. My fogs only come on, while my mains are on low beam, and maybe for parking lights; definitely NOT when on high beams.

have you tested those wires for power, when your headlights are on?

 

[ShadowsPapa]

When you installed the headlights - how did you adapt them into the system? Resistors? Telling the BCM that it had LED instead of halogen headlights?

And as already suggested - make sure you are on low beam for fog light testing.

 

[Volt0]

Also, do you have the auto hi/low beam feature in your JT? My wife does, and it works well most of the time, but sometimes does the opposite of what we want. For the 21s, I think it was part of the package with ACC.

 

[vettred84]

My halogen fog lights only come on with headlights

 

[ShadowsPapa]

My halogen fog lights only come on with headlights

that's normal.

 

[Tommyd]

When you installed the headlights - how did you adapt them into the system? Resistors? Telling the BCM that it had LED instead of halogen headlights?

And as already suggested - make sure you are on low beam for fog light testing.

I will try the low beam and see. Yes resistors I believe.

 

[mtudb24]

My halogen fog lights only come on with headlights

That doesn't seem right unless something has changed? My 2021 I can turn on my fog lamps with just my running lights on and no headlamps on. Just flip the dial from auto to parking lights and turn on the fogs by pushing the button.

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