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1999
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Monte Carlo V6-3.8L VIN K
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Scan Tool Testing and Procedures
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Scan Tool Data Definitions - Powertrain Systems
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TWC Diagnostic
TWC Diagnostic
Scan Tool Displays ENABLED or DISABLED. The scan tool display of ENABLED indicates that MAF, HO2S, ECT, or
VSS
DTCs that would disable the TWC diagnostic are not present.