Operation CHARM
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Jeep
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1992
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Cherokee 2WD L4-150 2.5L VIN P MFI
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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 Transmit
SCI Transmit
PURPOSE
The SCI transmit circuit is used as a communication path for the scan tool. The engine controller sends data to the scan tool through this circuit.