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Home >> Toyota >> 2002 >> Highlander Base, 2.4 D, AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Self-Diagnostics - 4-Cylinder >> Diagnostic Tests >> DTC P0420 Or DTC P0430: Catalyst System Efficiency Below Threshold >> Notes

DTC P0420 Or DTC P0430: Catalyst System Efficiency Below Threshold: Notes

NOTE: For component location, see appropriate illustration in THEORY & OPERATION article.

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