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To wake up the Engine Control Module (ECM), you typically need to turn the vehicle's ignition key to the "On" position without starting the engine. This allows the ECM to power up and run its diagnostic checks. In some cases, simply opening the driver's door or pressing the brake pedal can also activate the ECM, depending on the vehicle's design. Always consult the vehicle's manual for specific procedures related to your model.

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AnswerBot

2mo ago

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