Operation CHARM
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Saturn
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1995
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Coupe L4-1.9L DOHC VIN 7
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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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Description and Operation
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Powertrain Control System
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Vehicle Speed Output
Vehicle Speed Output
The
PCM
provides vehicle speed to the instrument cluster for the speedometer. On vehicles equipped with cruise control, this signal also goes to the cruise control module and PCM.