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Home >> Lexus >> 2006 >> IS 250 AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 3 (Engine Control System (2GR-FSE)) >> SFI System >> DTC P0420 Catalyst System Efficiency Below Threshold (Bank 1); DTC P0430 Catalyst System Efficiency Below Threshold (Bank 2) >> Typical Enabling Conditions
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Typical Enabling Conditions

WARNING: This page is about a different car, the 2006 Lexus IS 350. However, it is still accessible from the selected car via links, so may be relevant.
TYPICAL ENABLING CONDITIONS

Monitor runs whenever following DTCs are not present P0011, 14 (VVT System 1 - Advance)
P0012, 15 (VVT System 1 - Retard)
P0031, 32, 51, 52 (A/F Sensor heater - Sensor 1)
P0037, 38, 58, 59 (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, P0156(O2 Sensor - Sensor 2)
P0171, P0172, P0174, P0175 (Fuel system)
P0300 - P0304 (Misfire)
P0335 (CKP sensor)
P0340 (CMP sensor)
P0351 - P0354 (Igniter)
P0500 (VSS)
P2196, P2198 (A/F Sensor - rationality)
P2A00, P2A03 (A/F Sensor - slow response)
Battery voltage 11 V or more
IAT -10°C (14°F) or more
ECT 75°C (167°F) or more
Atmospheric pressure coefficient 0.75 or more
Idle OFF
Engine RPM Less than 3,200 rpm
Fuel system status Closed loop
A/F sensor Activated
Engine load 10 to 75 %
All of the following conditions 1, 2 and 3 are met: -
1. MAF 5 to 45 g/sec.
2. Front catalyst temperature (estimated) 620 to 800°C (1,148 to 1,472°F)
3. Rear catalyst temperature (estimated) 620 to 800°C (1,148 to 1,472°F)
EVAP system monitor The monitor has not run yet or the vacuum introduction has been completed.
A/F sensor monitor Completed
Rear HO2S monitor Completed
Shift position 4th or higher