Don't have any in my run but have replaced the similar module on a couple of Toro Time Masters .
They have a chip & usually some solid state switches.
These are very sensitive to excess current, voltage or reversed voltage.
Cheap multi meters can even fry them .
So before I plug a new one in I triple check all of the circuits .
It is the tiger eye that trips the cranking relay by grounding the solenoid trigger and also the tiger eye that turns off the magneto in all but normal shut down.
You can bypass it but in doing so none of the safety switches will work and while I have done it for my customers so they could use the mower while I waited for replacements, I have no intention of putting these instructions on an open public forum.
If you can not follow the circuit diagram well enough to work out how to do it yourself then you should not be fooling with it.
The actual switches fail more often than the module but you can test the module by jumping it's connectors to bypass the actual switches
If that works then jump or disconnect the actual switch, if the problem comes back then the wiring between the switch & the tiger eye is faulty.
The Toro one costs near $ 300 ( Aus ) by the time I get my hands on it and I think the tiger eye is even more expensive.
Scag do not call it a safety switch module because the instant they do, that triggers the brain dead to work out how to bypass it and then post their findings on You tube as if they are some sort of genius.