FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
Courtesy of Operation CHARM
:
Car repair manuals for everyone.
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Jeep Truck
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1998
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Wrangler 4WD 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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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
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Fuel injectors
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Ignition coil
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Certain relays/solenoids