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GMC Truck
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2000
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C 2500 Truck 2WD V8-454 7.4L VIN J SFI
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Repair and Diagnosis
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Restraints and Safety Systems
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Testing and Inspection
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Scan Tool Testing and Procedures
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Scan Tool Data Definitions
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Driver VDIF
Driver VDIF
The scan tool displays
0-400 millivolts
. The SDM measures the voltage difference between driver high and driver low and displays this voltage difference as Driver VDIF.