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GMC Truck
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2000
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S15/T15 Sonoma P/U 4WD V6-4.3L VIN X
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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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Information Bus
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Testing and Inspection
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Scan Tool Testing and Procedures
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Serial Data Communications
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Reading Diagnostic Trouble Codes
Reading Diagnostic Trouble Codes
Use a diagnostic scan tool in order to read the diagnostic trouble codes. Failure to follow this step could result in unnecessary repairs.