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Jeep
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1996
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Grand Cherokee 4WD L6-242 4.0L VIN S MFI
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Repair and Diagnosis
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Relays and Modules
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Relays and Modules - Powertrain Management
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Relays and Modules - Computers and Control Systems
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Engine Control Module
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Testing and Inspection
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Ground
Ground
If the system loses ground for the Z12 circuits, the vehicle will not operate. Check the connection at the ganged-ground circuit eyelet.