Replace light control module, warning lights now work, but turn signal lights do not work

Hello,

Yes, it could be the switch but to be sure lets check to see what where are losing power. Here is a guide and the blinker light wiring diagrams:

https://www.2carpros.com/articles/how-to-use-a-test-light-circuit-tester

Check out the diagrams (below). Please let us know what you find.

Cheers, Ken