2004 Nissan Sentra Headlight Connector Melting

2004 NISSAN SENTRA
111,000 MILES • 2.5L • 4 CYL • FWD • AUTOMATIC
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JWTURNER88
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Got the car used and after a few months the passenger headlight went out. I found that the ground pin on the connector had melted. I replaced the connector and got lower wattage bulbs and the connector started melting again, only on the passenger side. The driver side connector is fine. Also, just recently, my driver side fog light went out and found that ground pin had melted on that too. They use different body grounds and the other devices that share those grounds I haven't had a problem with. What could be causing the connectors to melt?
I've included the wiring diagram. I haven't checked the grounds yet because I don't know where they are located.
May 15, 2014 at 8:32 PM
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JWTURNER88
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Better image of wiring diagram

https://www.2carpros.com/images/external/nSnuyJP.png
May 15, 2014 at 8:43 PM
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JACOBANDNICKOLAS
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Are you using OEM style lights or aftermarket?
May 16, 2014 at 6:01 AM
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JWTURNER88
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OEM
May 16, 2014 at 8:04 AM