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GMC Truck
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2000
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S15/T15 Jimmy 2WD V6-4.3L VIN W
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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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Scan Tool Testing and Procedures
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Scan Tool Data, Normal Values and Definitions
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Scan Tool Data Definitions - Powertrain Systems
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Valid Ref. Pulse Occurred
Valid Ref. Pulse Occurred
Yes/No
: The scan tool will indicate YES after 2 or more
CKP sensor
reference pulses have been detected by the
VCM
.