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Home >> Buick >> 1999 >> Regal V6-3.8L SC VIN 1 >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Testing and Inspection >> Scan Tool Testing and Procedures >> Scan Tool Data Definitions - Powertrain Systems >> TWC Diagnostic
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TWC Diagnostic

Scan Tool Displays ENABLED or DISABLED. ENABLED displayed indicates that MAF, HO2S, ECT, or VSS DTCs that would disable the TWC diagnostic are not present.
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