Operation CHARM
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Jeep Truck
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1997
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Cherokee 2WD L6-4.0L VIN S
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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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Relays and Modules - Computers and Control Systems
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Engine Control Module
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Description and Operation
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Circuit Operation
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Battery Feed
Battery Feed
CIRCUIT OPERATION
Circuit A61 from fuse 21 in the Power Distribution Center
(PDC)
supplies battery voltage to cavity A22 of the
Powertrain Control Module
(PCM)
.