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Reverse light and flashers blink simultaneously

306 Views 0 Replies 1 Participant Last post by  Frankensteins-bowtie
Good evening,
I have a 5.3 swapped V8, 2003 Chevy Silverado extended cab base model. I did not do this swap.
My rear turn signals and rear reverse lights flash on both sides. I’ve already replaced both harnesses. Is there a short somewhere in this system or is it the junction block where the harnesses connect into?
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