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Home >> Toyota >> 2004 >> Highlander Limited, FWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 1 (Engine Control System (SFI) - Diagnostics (2AZ-FE)) >> DTC P0420: Catalyst System Efficiency Below Threshold (Bank 1) >> Monitor Strategy

Monitor Strategy

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MONITOR STRATEGY

Related DTCs P0420: Catalyst deterioration
Required sensors/ components (Main) Catalyst
Required sensors / components (Related) A/F sensor, Heated oxygen sensor (HO2S), IAT sensor, MAF meter, CKP sensor, ECT sensor
Frequency of operation Once per driving cycle
Duration 120 sec. (30 sec. x 4)
MIL operation 2 driving cycles
Sequence of operation None