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Upgrade to LED Headlights causes inoperable fog lights

Discussion in 'Lighting' started by RushFan65, Feb 7, 2024.

  1. Feb 7, 2024 at 4:40 PM
    #1
    RushFan65

    RushFan65 [OP] New Member

    Joined:
    Feb 7, 2024
    Member:
    #111628
    Messages:
    69
    Gender:
    Male
    First Name:
    Ruben
    Vehicle:
    2003 Tundra Access Cab
    My apologies if this issue has been discussed before. I have a 2003 Tundra Access Cab with the 4.7L V8. Recently I upgraded the low beam bulbs from halogen to LED. The swap went great, until I tried to use my fog lights and noticed that turning on the fog light switch did NOT illuminate the fog lights but instead caused my high beams to come on. I had read previous posts about installing a resistor from superbrightleds.com in line with the driver's side headlamp, which I did, and noticed that my fog lamps now worked as expected. Great right? WRONG! After driving to work early one morning (about a 20 minute commute), I noticed that my driver's side headlamp was flickering once I entered the parking garage. A few seconds later it went out completely. Once I was parked, I raised the hood and found that the resistor I had installed was BLAZING hot...almost too hot to touch. I removed the resistor, plugged my headlamp back in and both headlights worked again, although now the fog lamp issue is here again. Has anyone come up with a better fix than this resistor trick?
     

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