Buy 2004 Subaru Impreza Automatic Transmission Control Module. Engine Control Module ((ECM)) (AT). Associated, Problems - OEM Subaru Part # 31711AH240

A Module in a Vehicle used to Monitor and Control many components of the Vehicles Engine Management System. Unit AT Control.

UNIT ASSEMBLY-AT CONTROL Engine Control Module (ECM)Automatic Transmission Control Module

Fits Impreza, Outback

Trans Control Module
The transmission control module is known by several names—the TCM, PCM, ECM, ECU, PGM-FI—and the problems associated with them can be esoteric. But our Subaru technicians are experts in diagnosing and repairing the problems associated with the control module in your Subaru .