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Home >> Toyota >> 2005 >> MR2 C56 >> Repair and Diagnosis >> Engine Performance >> System >> Engine - Diagnostics >> DTC P0420: Catalyst System Efficiency Below Threshold (Bank 1) >> Typical Enabling Conditions

Typical Enabling Conditions

TYPICAL ENABLING CONDITIONS SPECIFICATION TABLE

The monitor will run whenever the following DTCs are not present See "List of disable a monitor" (in PRE-CHECK  )
Accumulated time with all of the following condition 30 seconds or more
Battery voltage 11 V or more
Intake air temperature -10°C (14°F) or more
Idling OFF
Intake air amount 5 g/sec or more, and less than 30 g/sec
Engine coolant temperature 75°C (167°F) or more
Estimated upstream catalyst temperature 440°C (878°F) or more, and 870°C (1,382°F) or less
Estimated temperature of downstream catalyst 320°C (608°F) or more, and 690°C (1,274°F) or less
Fuel system status Closed loop