Operation CHARM
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Dodge or Ram Truck
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1992
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B150 1/2 Ton Van V6-239 3.9L
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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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Data Link Connector
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Description and Operation
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SCI Receive
SCI Receive
PURPOSE
The SCI receive circuit is used as a communication path for the scan tool. The engine controller receives data from the scan tool through this circuit.