Fog light not working | FerrariChat
Buy

Fog light not working

Discussion in '348/355' started by TrojanFan, May 5, 2014.

This site may earn a commission from merchant affiliate links, including eBay, Amazon, Skimlinks, and others.

  1. TrojanFan

    TrojanFan F1 Veteran
    Owner Silver Subscribed

    Nov 17, 2008
    5,185
    So. CA & NV
    Full Name:
    Peter
    #1 TrojanFan, May 5, 2014
    All of a sudden my fog lights stopped working. Nothing happens when I push the button. Would both stop working if one bulb goes out or does this sound more like a fuse blown?
     
  2. wiley355

    wiley355 Formula Junior
    Silver Subscribed

    Oct 10, 2010
    541
    Vancouver, WA
    Full Name:
    Wiley
    #2 wiley355, May 5, 2014
    Is the light switch on the stalk also turned on? Fog lights won't come on without it. At least that's how mine works.
     
  3. jellypig

    jellypig Karting

    May 6, 2013
    76
    East Midlands, UK
    #3 jellypig, May 5, 2014
    Likewise, rears will only work if the fronts are on.

    (Something I had to explain to my MOT inspector as he did his checks sequentially)
     
  4. since-15

    since-15 Formula 3

    Nov 26, 2008
    1,142
    #4 since-15, May 5, 2014
    Last edited: May 5, 2014
    Start small/simple. Before you start taking out bulbs and removing switches, check the fuses. Fuses first, then bulbs, then connections, then switch.

    When I was in college, I installed a killer stereo in my car. When I finished the install it didn't work. I knew I did EVERYTHING right, yet nothing. Pulled it all out and then asked the simple question, "Did I check the fuse box?" Turns out it was the damn radio/lighter fuse. Lesson learned when it comes to a solving a problem, especially with cars (start small/simple).

    Good luck!
     
  5. dahveedem

    dahveedem Formula 3

    Mar 12, 2012
    1,603
    Maryland
    Full Name:
    David
    #5 dahveedem, May 9, 2014
    pull one of the fogs and check the connectors. in a word... like the rest of the connectors in Ferrari.. suck.

    My LH one does it all the time. If they are both out at the same time then check a fuse.

    Takes 5 minutes to pull out the lamp assembly.. just put a towel on the ground and DON'T DROP the darn thing. I was behind someone and saw the one was out... so I stopped in a McD's parking lot once since I'm slightly OCD and pulled the lamp to look at it.. sure enough it was the stupid connector.

    The looks I got from being on the ground working on his Ferrari were priceless. :D
     
  6. whyte

    whyte Formula Junior

    Apr 25, 2006
    409
    Merritt Island, FL
    Full Name:
    John C
    #6 whyte, May 9, 2014
    Also, relays. Most lights I've seen have fuses for right and left. Relays typically are used for pairs of lights, so when you have failure of two at the same time, it is likely a switch or a relay issue.

    If you blew two fuses, it is a symptom of a short somewhere, and you'll need to dig deeper.
     
  7. TrojanFan

    TrojanFan F1 Veteran
    Owner Silver Subscribed

    Nov 17, 2008
    5,185
    So. CA & NV
    Full Name:
    Peter
    #7 TrojanFan, May 11, 2014
    OK. Checks both fuses and they are good. Checked the relay and it is good. Any other suggestions on where I should check before I start tearing apart the lights? It seems od that both have failed at the same time.
     
  8. F355Bob

    F355Bob Formula 3

    Nov 4, 2003
    2,002
    Madison, Wisconsin
    #8 F355Bob, May 11, 2014
    I had both my bulbs burn out at the same time last year. It happens. Easy to replace bulbs.
     
  9. TrojanFan

    TrojanFan F1 Veteran
    Owner Silver Subscribed

    Nov 17, 2008
    5,185
    So. CA & NV
    Full Name:
    Peter
    #9 TrojanFan, May 12, 2014
    Is the bulb access from underneath the car by removing the lower panel?
     
  10. F355Bob

    F355Bob Formula 3

    Nov 4, 2003
    2,002
    Madison, Wisconsin
    #10 F355Bob, May 12, 2014
    Remove the small panels underneath the bumper just below each fog light. Remove the wire connector to the bulb and then remove the bulb by twisting it and it will come out of the fog light assembly. I believe you turn it counterclockwise. You do not remove the whole fog light, just the bulb. Reverse.
     
  11. dahveedem

    dahveedem Formula 3

    Mar 12, 2012
    1,603
    Maryland
    Full Name:
    David
    #11 dahveedem, May 12, 2014
    My ferrari tax is still on those connectors leading into the fogs. Bet they are loose.

    Mobilized reply by Dahveedem
     
  12. 348Jeff

    348Jeff Formula 3

    Oct 25, 2011
    1,547
    UK
    Full Name:
    Jeff
    #12 348Jeff, May 13, 2014
    Ive just been swapping bulbs in my fog light units this past weekend. Took some photos including insides if there any help:

    348 DIY "Restoration" - Page 151
     

Share This Page