Operation CHARM
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Jeep Truck
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1997
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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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Engine Control Module
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Description and Operation
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Powertrain Control Module (PCM)
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Power Ground
Power Ground
POWER GROUND
The power ground is used to control ground circuits for the following
Powertrain Control Module
(PCM)
loads:
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Generator field winding
-
Fuel injectors
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Ignition coil