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Hey guys. 2006 LBZ, all the lights and blinkers work and are oem bulbs, not LED. When I turn on the left and right blinkers, they blink fast. Any ideas? Usually they would blink fast if a bulb is out but that’s not the case here. Thanks in advance.
 

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For the chevy for that year remember to check the little side bulbs on both the headlight and taillights. They often alternate flashing with the larger bulbs. If they are burned out then it will also hyperflash. If all of those are working then maybe check the wiring for the trailer wiring harness.
 
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