Can anyone explain to me the function of the TS timer on the MCE traction controller. It appears in series with coil right of SAF relay. Had a situation where this was intermittently opening for no apparent reason at car stop/door open sequence dropping the output and causing the door to stall. I am sure the timer has failed, but don't understand what it's purpose is in the circuit. The mce manual was not helpful, could not find any discussion on it in there.