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GMC Truck
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2000
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K 2500 Truck 4WD 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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Air Bag 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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Lamp Driver
Lamp Driver
The scan tool displays Internal or External. The warning lamp control method for a hard wired lamp is Internal. The warning lamp control method for a serial data controlled lamp is External.