S15/T15 2WD P/U V6-173 2.8L VIN B 2-bbl (1983)
Torque Converter Clutch Solenoid: Description and Operation
The ECM controls a solenoid mounted in the automatic transmission. When the vehicle reaches a specified speed, the ECM energizes the solenoid and
the torque converter mechanically couples the engine to the transmission. When the brake is applied, or other conditions indicate that the transmission
should operate as a normal fluid coupled transmission, the solenoid is de-energized.
