Operation CHARM
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Mitsubishi
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1989
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Galant L4-2.0L SOHC
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Repair and Diagnosis
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Powertrain Management
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Computers and Control Systems
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Engine Control Module
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Description and Operation
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Power Circuits
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Ignition Switch Signal
Ignition Switch Signal
The ignition switch supplies "On" and "Start" information to the ECU to position the idle speed and ignition control components.