Okay, I'm adding some images and testing procedures for the hazard system from them you should be able to figure out if it's the switch itself, the BCM or wiring. First though I want you to test the switches ground. The black wire coming from the back of the switch is it ground. Use a VOM and test it, you should have zero ohms from the wire to chassis. If it's good follow the testing steps listed below.
Let me know how you do.
Images (Click to enlarge)
Friday, July 3rd, 2020 AT 12:35 PM