Oxygen Sensor Diagnosis

The control module diagnoses the following fuel control HO2S conditions:
^ The heater performance
^ A slow response
^ An insufficient switching
^ The transition time ratio
^ An inactive sensor
^ The signal fixed high
^ The signal fixed low

The control module diagnoses the following 3-way catalyst monitor HO2S conditions:
^ The heater performance
^ The signal fixed high
^ The signal fixed low
^ An inactive sensor