Operation CHARM
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Saturn
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2002
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L100 L4-2.2L VIN F
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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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Body Control Module
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Description and Operation
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Body Control Module Functions
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Device Power
Device Power
Battery voltage is supplied to the
BCM
by circuit 2540. This input is internally monitored by the BCM for proper operating voltage. The proper operating voltage range is from
9 to 16 volts
.