Well, apparently something isn’t right.
@jkwilborn I traced back the wiring as far as I could without removing the housing from the primary control board. All indications show that the wiring is fine, every connection reflects the same connection in the flow. PWM to PWM to PWM, GND to GND to GND, VCC to 12V to 12V. I feel confident that the wiring is fine at the primary control board as the old laser module worked fine until it died.
@berainlb I tested the PWM and Ground, maybe I did it wrong. I can’t say as I’m an electrician. I unplugged the laser control wire from the module and ran an etch process through LightBurn with 3 squares on 3 layers set to power 0%, 50%, and 100%. The voltages I was getting with the black to GND and red to PWM were 0.0±, 1.5±, and 3.0± respectively.