Buy 1990 Subaru Legacy 2WD Limited STATION WAGON Automatic Transmission Control Module. Engine Control - OEM Subaru Part # 31711AB080 (31711AA361, 31711AA362, 31711AA363, 31711AA920, 31711AA921)

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 Legacy

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 1990 Subaru Legacy.