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Home › Cadillac › 2001 › Seville SLS › Repair and Diagnosis › Engine Performance › System › Engine Control System - Self-Diagnostics - 4.6L › Inspection/Maintenance Procedures › Inspection/Maintenance Heated Oxygen Sensor/Oxygen Sensor System Set Procedure › Enable Criteria

Enable Criteria

Engine coolant temperature is more than 176°F (80°C).
Engine is in closed loop.
Engine has been running more than 4 minutes.
Battery voltage is 11.6-16.0 volts.