Functional Diagram
The electronic control system consists of the transmission control module (TCM), sensors, switches, and solenoid valves. Shifting is electronically controlled for comfortable driving under all conditions.
The TCM receives input signals from the ECM, sensors and switches, perform processing data, and outputs signals for automatic transmission control system. The A/T control system, which includes the shift control, pulley pressure control, start clutch pressure control, reverse inhibitor control, and creep aid control, is stored in the TCM.
The TCM actuates the pulley control solenoids to control the pulley control valves A and B shifting transmission pulley ratios.