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Home >> Toyota >> 2004 >> ECHO 2D Sedan, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Diagnostics >> DTC Tests >> DTC P0420: Catalyst System Efficiency Below Threshold (Bank 1) >> Monitor Result
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Monitor Result

The detailed information is described in "CHECKING MONITOR STATUS" (See PRE-CHECK ).

TID $01: Catalyst- Using Front HO2S and Rear HO2S 

MONITOR RESULT SPECIFICATION

TLT CID Unit Conversion Description of Test Value Description of Test Limit
0 $01 Multiply by 0.0078 (no dimension) Catalyst deterioration level bank 1: Determined by waveform of front HO2S and rear HO2S Malfunction criterion