A/T Control System: TCM

WARNING: This page is about a different car, the 2016 Infiniti Q50. However, it is still accessible from the selected car via links, so may be relevant.

The TCM is integral with the control valve assembly and built into the transmission assembly.

Courtesy of NISSAN NORTH AMERICA, INC.
The TCM consists of a microcomputer and connectors for signal input and output and for power supply. The TCM controls the A/T.
TCM transmits sub electric oil pump oil pressure command signal to sub electric oil pump inverter and secures necessary hydraulic pressure from sub electric oil pump, when necessary hydraulic pressure for transmission cannot be obtained during idling stop operation.