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Home >> Scion >> 2009 >> tC Standard >> Repair and Diagnosis >> Engine Performance >> 2AZ-FE Engine Control System >> SFI System >> DTC P2A00 A/F Sensor Circuit Slow Response (Bank 1 Sensor 1) >> Typical Enabling Conditions

Typical Enabling Conditions

TYPICAL ENABLING CONDITIONS CHART

Monitor runs whenever the following DTCs are not present P0128 (Thermostat)
P0136, P0137, P0138, P0139 (HO2 sensor)
P0420 (Catalyst)
P0505 (Idle speed control)
P050A (Cold start strategy)
Active A/F control Performing
Active A/F control performed when the following conditions are met: -
Engine coolant temperature 75°C (167°F) or more
Battery voltage 11 V or more
Idle OFF
Engine RPM Less than 4, 000 rpm
A/F sensor status Activated
Fuel-cut OFF
Engine load 10 to 70%
Shift position 2 or more
Catalyst monitor Not yet
Intake air amount 4 to 16g/sec