Operation CHARM
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Jeep
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1999
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Grand Cherokee 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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Body Control Module
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Testing and Inspection
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Reading and Clearing Diagnostic Trouble Codes
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Displaying & Reading Trouble Codes
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Without Scan Tool
Without Scan Tool
Chrysler does not provide a procedure to retieve diagnostic trouble codes without a scan tool.