Civic Hatchback L4-1493cc 1.5L SOHC (D15B1) TBI (1990)
Lock-Up Control Solenoid Valve A/B: Description and Operation
Lock-up Control Solenoid Valve
The speed and throttle angle sensor inputs to the ECU are used to send an on/off voltage signal to the lock-up control solenoid valve for precise
timing of the torque converter lock-up system.