Chevrolet Repair Questions? Ask a Mechanic for Answers ASAP
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The first thing to check is the HDM fuse in the underhood fuse panel. If this fuse is good, test for power on this fuse with a test light or voltmeter. If you have power on this fuse, turn the low beam headlights on and test for power at the LO HEADLAMP-LT and LO HEADLAMP-RT fuses. Let me know what you find.