You could try unplugging the TMS and seeing if any of the hazards still work.
I did already and posted it in the thread a few days back... "3) With the TSM still unplugged I tried the Hazards and they still work (incorrectly as before, but working all the same)"
This is why I am so confused. The indicators work fine, the hazards and the indicators share the same relay and the hazards do the same thing when the TMS is unplugged.