Civic L4-1590cc 1.6L SOHC (VTEC) (1992)
Lock-Up Control Solenoid Valve A/B: Description and Operation
The lock-up shift valve controls the range of lock-up according to lock-up control solenoid valves A and B, and the throttle valve. When lock-up control
solenoids valves activate, modulator pressure changes. Lock-up control solenoid valves A and B are mounted on the torque converter housing and
controlled by the ECU.