Engine Control Module: Description and Operation

COMPONENT DESCRIPTION
The ECM consists of a microcomputer and connector for signal input and output and for power supply. The ECM controls the engine.

SYSTEM DESCRIPTION
The malfunction information related to A/T (Automatic Transaxle) is transferred through the line (circuit) from TCM (Transmission Control Module) to ECM. Therefore, be sure to erase the malfunction information such as DTC not only in TCM (Transmission Control Module) but also ECM after the A/T related repair.