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yesterday my sons Dakota fog lites stopped working, we wernt able to spend a lot of time diagnoseing this but here is what we did do...checked the fuse, it was good, swapped the horn relay,(which works and is the same) with the fog lamp relay, no change, and pulled one of the bulbs,(just in case they were both burnt out) and tested it with jumper wires direct to the battery and it lit up, therefore I assume this leaves two things, a problem in the harness or the switch, now I have replaced many Dodge headlamp switches before and know they havnt been great in the past..have they gotten any better? My son said he thought the switch seemed warm to the touch when driving with the lights on last week, this may have been a sign so before I remove it for inspection, any ideas?, Oh, and yes, these are factory lites installed at assembly