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2007 GMC Sierra W/T Electrical Issue

rct13

By rct13
June 3, 2022 in Ask A GM Technician

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rct13

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rct13

Posted June 3, 2022

Posted June 3, 2022

I am having an issue with both brake lights on the tail lights staying on even after vehicle is turned off. The cab brake light is working properly. I am also experiencing a rapid blinking turn signals in each direction which show in the front but not the back. I have replaced the tail light bulbs and also the circuit board for the tail lights and it is still not working. Any ideas on where to investigate next?

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