Honda NSX-T 1998 Manual page 753

Main Menu Table of Contents
Description
Lock-up System (cont'd)
Deceleration Lock-up
Lock-up Control Solenoid Valve A: ON Lock-up Control Solenoid Valve B: Duty Operation
The TCM switches the solenoid valve B to ON and OFF alternately at high speeds under certain conditions.
The slight lock-up and half lock-up regions are maintained so as to lock the torque converter properly.
NOTE: When used, "left" or "right" indicates direction on the hydraulic circuit.