Question about 1991 Chevrolet C1500

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Turn signals and back up lights dont work, bulbs and fuses good. Blinker lights only work in dash when emergency flashers are on.

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Test the circuit board wires on the back side of your taillights where the bulbs go in to see if power is going there with the blinker on, if yes replace the circuit board (quite common with these trucks). If there is no power back there check your flasher relays for each turn signal, assuming they dont click off and on when you tip the turn lever. if all else fails, head for the multifunction switch behind your steering wheel inside the column that your turn signal/wiper/cruise control lever is connected to.

Posted on Mar 15, 2009

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