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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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Pre HO2S
Pre HO2S
Not Ready/Ready
: The scan tool will display Not Ready until the
VCM
has commanded Closed Loop. The
HO2S
is then considered Ready for operation.