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Home >> Toyota >> 2006 >> Matrix Base, FWD, Automatic >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 9 (Engine Control System (2ZZ-GE)) >> SFI System >> DTC P0420 Catalyst System Efficiency Below Threshold (Bank 1) >> Typical Enabling Conditions
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Typical Enabling Conditions

WARNING: This page is about a different variant/trim than selected.
TYPICAL ENABLING CONDITIONS

Monitor runs whenever following DTCs not present P0011, P0012 (VVT system-Advance, Retard), P0031, P0032 (O2 sensor heater sensor 1), P0031, P0032, (A/F sensor heater sensor 1), P0037, P0038 (O2 sensor heater sensor 2), P0100, P0102, P0103 (MAF sensor), P0115, P0117, P0118 (ECT sensor), P0120, P0122, P0123 (TP sensor), P0125 (Insufficient ECT for closed loop), P0130 (O2 sensor 1), P0134 (O2 sensor, A/F sensor (No activity) sensor 1), P0136 (O2 sensor 2), P0171, P0172 (Fuel system), P0300, P0301, P0302, P0303, P0304 (Misfire), P0335 (CKP sensor), P0340, P0341 (CMP sensor), P0351, P0352, P0353, P0354 (Igniter), P0500 (VSS), P2196 (A/F sensor (Rationality)), P2440 (A/R control valve stuck open), P2441 (A/R control valve stuck close), P2444 (AIP stuck ON), P2445 (AIP stuck OFF)
Accumulated time that following conditions met 30 seconds
Battery voltage 11 V or more
Intake air temperature -10°C (14°F) or more
Idle status OFF
MAF 8 to 25 gm/sec
Engine speed Less than 4,500 rpm
Engine coolant temperature 75°C (167°F) or more
Estimated TWC temperature Up stream catalyst: 500° to 900°C (932° to 1,652°F)
Fuel system status Closed loop