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  1. #1
    Join Date
    Jan 2008
    Location
    Arlington/Newport News, VA
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    929

    Default H11 Headlight socket question!

    My XC needs a new headlight socket connection. The connector that goes into the bulb has a loose connection causing my bulb to go in and out. I have tried readjusting this one, but the plastic is crumbling and it doesnt stay in contact for long. My question is my connector has three wires to it, but every single one I find online only has two wires.

    Ex. IPD:

    http://www.ipdusa.com/products/9128/...-headlamp-bulb

    IPD's also has a different connector style than OEM. Can anyone shed some light on the differences and if these will work or not, and if so what is the third wire for?

    Thank you!

    '05 XC70
    -Pioneer Avic F700bt headunit
    -12 inch Alpine Type R Sub
    -Flat Black Pegs
    -Custom Tinted Windows
    -Custom Mesh Grille
    -OBX Catback Exhaust
    -IPD Silicone Hoses

  2. #2
    Join Date
    Jan 2009
    Location
    UK
    Posts
    132

    Default

    Not sure what year yours is, but mine has H7 bulbs (3 wires)

  3. #3
    Join Date
    Jan 2008
    Location
    Arlington/Newport News, VA
    Posts
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    Default

    I have a 2005. It is an H11 bulb with 3 wires. That is where I am getting tripped up. All the replacements seem to only have two wires?

    '05 XC70
    -Pioneer Avic F700bt headunit
    -12 inch Alpine Type R Sub
    -Flat Black Pegs
    -Custom Tinted Windows
    -Custom Mesh Grille
    -OBX Catback Exhaust
    -IPD Silicone Hoses

  4. #4
    Join Date
    Mar 2008
    Location
    Western Head, Nova Scotia
    Posts
    3,089

    Default

    Quote Originally Posted by martinperry View Post
    Not sure what year yours is, but mine has H7 bulbs (3 wires)
    Are you sure? H7s are a single filament bulb, like the H11 thus only needing positive and negative leads. I know on my '02 that uses H7s in both the high and low beam positions that those sockets are only 2-wire as I have replaced both low beam sockets over the last couple of years and they were definitely 2-wire. Is it possible that the socket you are looking at is indeed 3-wire but that 3rd wire is just a common ground (i.e. black wire) to the second bulb?

    Cheers,

    Bill
    Last edited by billr99; 11-27-2012 at 08:52 AM.
    Western Head, NS CDN

    '08 BMW 750i (Black Sapphire)-204K kms to-date
    '05 XC70 (Lava Sand)-296K kms to-date
    '02 V70XC-gone @393K kms
    '05 V70R (Magic Blue)-120K mi to-date - gone
    '96 854R (Red)-real CDN-spec 5-speed R - gone @270k kms
    And other Volvos and misc. Euro stuff

  5. #5
    Join Date
    Jan 2008
    Location
    Arlington/Newport News, VA
    Posts
    929

    Default

    Quote Originally Posted by billr99 View Post
    Are you sure? H7s are a single filament bulb, like the H11 thus only needing positive and negative leads. I know on my '02 that uses H7s in both the high and low beam positions that those sockets are only 2-wire as I have replaced both low beam sockets over the last couple of years and they were definitely 2-wire. Is it possible that the socket you are looking at is indeed 3-wire but that 3rd wire is just a common ground (i.e. black wire) to the second bulb?

    Cheers,

    Bill
    I figured it was just a common ground as well. But why have it there? Are you saying in theory I can just splice both grounds into the single ground wire on the new harness and everything still work fine? That was my plan...

    Also, Does anyone know how to get the actual little metal female connector out of the plastic housing? I would like to see if I am just losing a connection and can solder it and fix it?

    '05 XC70
    -Pioneer Avic F700bt headunit
    -12 inch Alpine Type R Sub
    -Flat Black Pegs
    -Custom Tinted Windows
    -Custom Mesh Grille
    -OBX Catback Exhaust
    -IPD Silicone Hoses

  6. #6
    Join Date
    Mar 2008
    Location
    Western Head, Nova Scotia
    Posts
    3,089

    Default

    Quote Originally Posted by n00bkiller944 View Post
    I figured it was just a common ground as well. But why have it there? Are you saying in theory I can just splice both grounds into the single ground wire on the new harness and everything still work fine? That was my plan...

    Also, Does anyone know how to get the actual little metal female connector out of the plastic housing? I would like to see if I am just losing a connection and can solder it and fix it?
    If it is a ground (black wire) then there is no reason you couldn't splice it since ultimately all grounds go back to the grounded chassis.

    As far as rewiring the sockets, I just bought new sockets that had their own leads and slice those into the harness in place of the originals. Got them off eBay for something like $5 a pair.

    Cheers,

    Bill
    Western Head, NS CDN

    '08 BMW 750i (Black Sapphire)-204K kms to-date
    '05 XC70 (Lava Sand)-296K kms to-date
    '02 V70XC-gone @393K kms
    '05 V70R (Magic Blue)-120K mi to-date - gone
    '96 854R (Red)-real CDN-spec 5-speed R - gone @270k kms
    And other Volvos and misc. Euro stuff

  7. #7
    Join Date
    Jan 2008
    Location
    Arlington/Newport News, VA
    Posts
    929

    Default

    Were the sockets you replaced them with just 2 wires like what I have ran into?


    Quote Originally Posted by billr99 View Post
    If it is a ground (black wire) then there is no reason you couldn't splice it since ultimately all grounds go back to the grounded chassis.

    As far as rewiring the sockets, I just bought new sockets that had their own leads and slice those into the harness in place of the originals. Got them off eBay for something like $5 a pair.

    Cheers,

    Bill

    '05 XC70
    -Pioneer Avic F700bt headunit
    -12 inch Alpine Type R Sub
    -Flat Black Pegs
    -Custom Tinted Windows
    -Custom Mesh Grille
    -OBX Catback Exhaust
    -IPD Silicone Hoses

  8. #8
    Join Date
    Mar 2008
    Location
    Western Head, Nova Scotia
    Posts
    3,089

    Default

    Quote Originally Posted by n00bkiller944 View Post
    Were the sockets you replaced them with just 2 wires like what I have ran into?
    Yeah they were, but I was replacing stock H7 sockets with H7 sockets. Presumably, if you got H11 sockets all would be correct.

    Cheers,

    Bill
    Western Head, NS CDN

    '08 BMW 750i (Black Sapphire)-204K kms to-date
    '05 XC70 (Lava Sand)-296K kms to-date
    '02 V70XC-gone @393K kms
    '05 V70R (Magic Blue)-120K mi to-date - gone
    '96 854R (Red)-real CDN-spec 5-speed R - gone @270k kms
    And other Volvos and misc. Euro stuff

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