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Discussion Starter #1
I have a 2004 cummins, recently I replaced the headlights to aftermarket LED. the installation went well no issues everything worked. I then added a light bar, during the adventure through the firewall for the switch I used a knife to poke a hole in one of the rubber seals. the light bar worked and all lights were fine. the next morning I went to start my truck and got a "lamp out" light. The running lights (front and rear) on the passenger side, blinker (front only) and cab lights no longer work. I'm hopeful I sliced a wire but I cant seem to find any breaks. Looking for any info that may help me locate the issue.

Things I've checked already:
-all bulbs associated
-all fuses
-power to the running lights in the front (there was none)
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