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Home >> Toyota >> 2009 >> Camry Hybrid >> Repair and Diagnosis >> Engine Performance >> Engine Control System (Hybrid) >> Initialization >> DTC P0420 Catalyst System Efficiency Below Threshold (Bank 1) >> Typical Enabling Conditions

Typical Enabling Conditions

TYPICAL ENABLING CONDITIONS

Monitor will not run if the following DTCs are present P0011 (VVT System 1 - Advance)
P0012 (VVT System 1 - Retard)
P0031, 32 (A/F Sensor heater - Sensor 1)
P0037, 38 (O2 Sensor heater - Sensor 2)
P0100 - P0103 (MAF meter)
P0115 - P0118 (ECT sensor)
P0120 - P0223, P2135 (TP sensor)
P0125 (Insufficient ECT for Closed Loop)
P0136 (O2 Sensor - Sensor 2)
P0171, P0172 (Fuel system)
P0300 - P0304 (Misfire)
P0335 (CKP sensor)
P0340 (CMP sensor)
P0351 - P0354 (Igniter)
P0500 (VSS)
P2196 (A/F Sensor - rationality)
P2A00 (A/F Sensor - slow response)
Battery voltage 11 V or more
Intake air temperature -10°C(14°F) or more
Engine coolant temperature 75°C (167°F) or more
Atmospheric pressure 76 kPa (570 mmHg) or more
Idling OFF
Engine RPM Less than 3,200 rpm
A/F sensor status Activated
Fuel system status Closed loop
Engine load 10 to 70%
All of following conditions (a), (b) and (c) met -
(a) Mass air flow rate 10 to 28g/sec.
(b) Estimated front catalyst temperature 600 to 800°C (1,112 to 1,472°F)
(c) Estimated rear catalyst temperature 430 to 675°C (800 to 1,247°F)
Rear HO2 sensor heater monitor Completed