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Home >> Lexus >> 2006 >> RX 330 AWD >> Repair and Diagnosis >> Engine Performance >> Remove, Overhaul & Install >> Engine Control System (3MZ-FE) >> 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

TYPICAL ENABLING CONDITIONS

Monitor will run whenever this DTC is not present P0011, P0012, P0021, P0022 (VVT system-Advance, Retard), P0031, P0032, P0051, P0052 (O2 sensor heater sensor 1), P0031, P0032, P0051, P0052 (A/F sensor heater sensor 1), P0037, P0038, P0057, P0058 (O2 sensor heater sensor 2), P0100, P0101, P0102, P0103 (MAF sensor), P0115, P0116, P0117, P0118 (ECT sensor), P0120, P0123, P0220, P0222, P0223, P2135,(TP sensor), P0125 (Insufficient ECT for closed loop), P0136, P0137, P0138, (O2 sensor 1), P0134, P0154 (O2 sensor, A/F sensor (No activity) sensor 1), P0136, P0156 (O2 sensor 2), P0171, P0172, P0174, P0175 (Fuel system), P0300, P0301, P0302, P0303, P0305, P0306, P0308, (Misfire), P0335 (CKP sensor), P0340, P0341 (CMP sensor), P0351, P0352, P0353, P0354, P0355, P0356, P0358 (Igniter), P0385 (CKP sensor 2), P0500 (VSS), P2196, P2198 (A/F sensor (Rationality)), P2A00, P2A03 (A/F sensor (Slow response))
Accumulated time that all of the following conditions are met 30 seconds or more
Battery voltage 11 V or more
Intake air temperature -10°C (14°F) or more
Idle status OFF
Mass air flow rate 6 to 45 g/sec.
Engine RPM Less than 3,000 rpm
Engine coolant temperature sensor 75°C (167°F) or more
Fuel system status Closed loop
Rich experience after fuel cut Yes
A/F sensor Activated
Rear HO2S Activated
Estimated catalyst temperature Both of following conditions 1 and 2 met
1. Upstream catalyst temperature 500 to 800°C (932 to 1472°F) or more
2. Downstream catalyst temperature 500 to 800°C (932 to 1472°F) or more