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The primary activation threshold for TCC lockup is controlled by the converted schedules Torque Converter: Converter Schedules. There are schedules for each drive mode and they return an output shaft speed above which a TCC lockup will be requested. Once a lockup has been requested the system will begin to supply pressure to the lockup clutch unless the lockup is blocked. The primary blockers for TCC lockup are torque limits, unconditional unlock timers, or the
parameter. Further investigation will be required for the torque limit conditions but these can be disabled by un-checking the 
toggle. An unconditional unlock state can be set by various conditions and will apply a delay for TCC lockup based on the unconditional unlock source as monitored by 
. TCC lockup request can be monitored by 
and actual lockup is best monitored by 
. will be 0 in an unlocked state, and 1 or 3 in a locked state. Further investigation will be required to find what determines a 1 or 3 lock state but It is not necessary for this state to be 3 to consider the TCC as locked, is a better representation of this.
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