Transmission Control Systems: Description and Operation

OUTLINE OF THE CONTROL SYSTEM
The RE4FO4A automatic transaxle senses vehicle operating conditions through various sensors. It always controls the optimum shift position and reduces shifting and lock-up shocks.




A/T CONTROL UNIT FUNCTION
The A/T control unit receives signals sent from various switches and sensors, determines required line pressure, shifting point, lock-up operation, engine brake operation, and sends required signals to the respective solenoids.




INPUT/OUTPUT SIGNAL OF A/T CONTROL UNIT