Operation CHARM
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Dodge or Ram Truck
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1993
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W 150 Pickup V8-360 5.9L
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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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Description and Operation
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Functional Operation
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Inputs
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Power Ground
Power Ground
PURPOSE
Used to control
Powertrain Control Module
(PCM)
ground circuits.
OPERATION
The power ground is used to control the PCM loads for; the generator field, 8 volt PCM power supply, fuel injectors, and ignition coil.