Operation CHARM
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Ford Truck
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1994
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F 150 2WD Pickup L6-300 4.9L
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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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Testing and Inspection
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Pinpoint Tests
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J - Fuel Pump Circuit
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J93 - Check For DTC 556
J93 - Check For DTC 556
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Is Continuous Memory Diagnostic Trouble Code (DTC) 556 also present?
Yes --
Go to J95.
J95 - Check EEC-IV Harness
No --
Go to J94.
J94 - Check EEC-IV Harness