Saturn Workshop Service and Repair Manuals > L Series V6-3.0L VIN R (2004) > Relays and Modules | Relays and Modules - Powertrain Management | Relays and Modules - Computers and Control Systems | Engine Control Module | Component Information | Description and Operation

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Engine Control Module: Description and Operation
Powertrain Control Module

POWERTRAIN CONTROL MODULE

The powertrain control module (PCM) is used only on the 4 cylinder application, and sends messages to the cluster.

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