Operation CHARM
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Buick
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1983
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Century L4-151 2.5L
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Repair and Diagnosis
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Powertrain Management
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Sensors and Switches - Powertrain Management
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Sensors and Switches - Computers and Control Systems
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Transmission Position Sensor/Switch
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Description and Operation
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3RD and/or 4TH Gear Switch
3RD and/or 4TH Gear Switch
Switches--mounted in the transmission--are closed unless the transmission is shifted into the relative gear.