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Home >> Jeep >> 2007 >> Commander Overland, RWD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Communication Devices >> Electronic Control Modules (Service Information) >> Electronic Control Modules >> Module-Engine Control (Diesel) >> Operation >> Engine Control Module (ECM) >> ECM Operating Modes
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ECM Operating Modes

As input signals to the ECM change, the ECM adjusts its response to the output devices. For example, the ECM must calculate a different fuel quantity and fuel timing for engine idle condition than it would for a wide open throttle condition. There are several different modes of operation that determine how the ECM responds to the various input signals.

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