Hey Mtncat1 - the symptoms of a TSS issue are intermittent cutting out (like you hit the kill switch) or, worst case, you can start the sled but as soon as you try to bring the rpm's up to engage the clutch, the motor will "bog" and limit the motor rpm to prevent engagement. You cannot disconnect the TSS on a Polaris. The ECU always compares the TPS to the TSS and if the TPS voltage is higher (or lower - I am not sure which side of the divider they measure) than the TSS, it assumes you have a stuck throttle body/cable issue and limits the rpm below engagement. On an Arctic Cat, you can just disconnect the TSS. Which is good and bad. Bad in that there is no fail safe for a stuck throttle body/cable if the TSS is not functioning. Polaris took the safest route with their design by not allowing it to be disconnected. Unfortunately, TSS issues are common and can leave you stranded even though everything is functioning normally. With the bypass, you can just plug it in and finish your ride.
--Chris