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Home >> Lexus >> 2007 >> LS 460L >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> Engine Control System - Diagnostic Codes (2 Of 4) >> 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 runs whenever following DTCs not present P0011 (VVT System 1 - Advance)
P0012 (VVT System 1 - Retard)
P0021 (VVT System 2 - Advance)
P0022 (VVT System 2 - Retard)
P0031, P0032, P0051, P0052 (A/F sensor heater - Sensor 1)
P0037, P0038, P0057, P0058 (HO2 sensor Heater - Sensor 2)
P0102, P0103, P010C, P010D (MAF meter)
P0115 - P0118 (ECT sensor)
P0120 - P0223, P2135 (TP sensor)
P0125 (Insufficient ECT for closed loop)
P0136, P0156 (HO2 Sensor - Sensor 2)
P0171, P0172, P0174, P0175 (Fuel system)
P0300 - P0308 (Misfire)
P0335 (CKP sensor)
P0340 (VVT sensor)
P0351 - P0358 (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
Engine coolant temperature sensor 75°C (167°F) or more
Atmospheric pressure coefficient 75 kPa (570 mmHg) or more
Idling OFF
Engine RPM Less than 3200 rpm
A/F sensor status Activated
Fuel system status Closed loop
Engine load 10 to 70%
All of the following conditions are met Condition 1, 2 and 3
1. Mass air flow rate 2.9 to 75 g/sec.
2. Front catalyst temperature (estimated) 600 to 820°C (1112 to 1508°F)
3. Rear catalyst temperature (estimated) 300 to 830°C (572 to 1526°F)
EVAP system monitor The monitor has not run yet or the vacuum introduction has been completed
A/F sensor monitor Completed
Rear HO2 sensor monitor Completed
Shift position 3rd or higher