Nissan and Datsun Workshop Service and Repair Manuals > Altima 2.5 SL L4-2.5L (QR25DE) (2002) > Relays and Modules | Relays and Modules - Powertrain Management | Relays and Modules - Computers and Control Systems | Engine Control Module | Component Information | Diagrams

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Engine Control Module: Description and Operation

Component Description

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

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