1977 Chevy Cheyenne blinkers

Hi, If turn signals at the rear don't work, check voltage and ground at the rear. Right rear turn, voltage wire, dark green. Ground wire is black.

Use a testlite on the green wire, key on, turn signal on, probe the green wire, use chassis ground for testlite, if testlite comes on, there is voltage. If no voltage you backtrack the circuit to the turn signal switch.