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Home >> Toyota >> 2004 >> Avalon XLS >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Diagnostics >> DTC P0420: Catalyst System Efficiency Below Threshold (Bank 1) >> Typical Enabling Conditions
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Typical Enabling Conditions

TYPICAL ENABLING CONDITIONS

The monitor will run whenever the following DTCs are not present See page
Accumulated time that the following conditions are met 20 sec
Battery voltage 11 V or more
IAT -10 °C (14°F) or more
Idle OFF
MAF 6 to 26 g/sec
RPM Less than 2,700 rpm
ECT 50 °C (122 °F) or more
Catalyst condition Warmed up
Fuel system status Closed Loop
A/F sensor voltage 3 to 3.5 V