The _______ function tells the control module at what speed to lock and unlock the torque converter.

The _______ function tells the control module at what speed to lock and unlock the torque converter.

• A. Lockup Strategy
• B. Torque Converter Control
• C. TCC Apply/Release
• D. TCC Lock/Unlock

Answer: (C)

The function that tells the control module when to lock and unlock the torque converter is the TCC Apply/Release. This is the specific command path that directly engages or disengages the torque converter clutch based on speed and other conditions. In other words, when the system decides it’s time to lock or unlock, it issues an apply (lock) or release (unlock) signal through this function, which is why it’s the best fit for describing “telling the control module at what speed to lock and unlock.” Think of the other options as broader ideas rather than the actual command path: a Lockup Strategy defines the policy or rules for when to lock, but not the act of applying or releasing; Torque Converter Control covers the overall management of the converter, not the specific lock/unlock instruction; and TCC Lock/Unlock would describe the action but isn’t the standard diagnostic naming for the function that issues the command.

The function that tells the control module when to lock and unlock the torque converter is the TCC Apply/Release. This is the specific command path that directly engages or disengages the torque converter clutch based on speed and other conditions. In other words, when the system decides it’s time to lock or unlock, it issues an apply (lock) or release (unlock) signal through this function, which is why it’s the best fit for describing “telling the control module at what speed to lock and unlock.”

Think of the other options as broader ideas rather than the actual command path: a Lockup Strategy defines the policy or rules for when to lock, but not the act of applying or releasing; Torque Converter Control covers the overall management of the converter, not the specific lock/unlock instruction; and TCC Lock/Unlock would describe the action but isn’t the standard diagnostic naming for the function that issues the command.