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Home › Volkswagen › 2012 › Passat 3.6 SE › Repair and Diagnosis › Engine Performance › Engine Control Systems › 3.6L - Generic Scan Tool - Engine Code: CDVB (Transmission DTC Tables & Diagnostic Procedures) › St Generic Scan Tool › Diagnosis And Testing › Diagnostic Procedures › Catalytic Converter, Checking › Test Requirements

Test Requirements

Battery voltage at least 12.5 volts.
Oxygen Sensors OK.
No leaks or damage to exhaust system.