I have 03 tahoe my taillights are not working my turn signal is work but not the driven light
I had this problem with a 1997 suburban and a 1999 tahoe. I fixed it on the suburban by replasing the complete light assembly, and on the tahoe i just replaced the circuit board were the light bulbs and harness plug in its easy and inexpensive. good luck!
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Check your connections where the wires all connect, something isn't making a good connection, I had the same problem with my 97 c1500 suburban ls but later I too had to change the circuit board and even the aftermarket ones don't last, I finally had to go to LKQ and get one off a 99 Tahoe and it solved mines doing that
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