While I was finding out which smoke unit the engine has, I discovered that it is wired directly to a circuit board at the same spots the headlight is connected.
The engine has had ERR TMCC installed, and, ever since, the headlight has worked intermittently. I am now wondering if part of the problem has been that the smoke unit has not been getting power all the time.
Is there a way to find out why the power has not been constant on the headlight/smoke unit?
Related question: will JT’s Smoke fluid damage the Seuthe unit?