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Home >> Toyota >> 2018 >> Highlander LE Plus, FWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 114 (SFI System (2GR-FXS) - Diagnostic Codes - (Hybrid) (2 Of 4)) >> SFI System >> DTC P0420: Catalyst System Efficiency Below Threshold (Bank 1); DTC P0430: Catalyst System Efficiency Below Threshold (Bank 2) [11/2016 - ] >> Catalyst Location

Catalyst Location

WARNING: This page is about a different variant/trim than selected.
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*1 Air Fuel Ratio Sensor (Bank 2 Sensor 1) *2 Exhaust Manifold Assembly LH (TWC: Front Catalyst)
*3 Front Exhaust Pipe Assembly *4 Heated Oxygen Sensor (Bank 2 Sensor 2)
*5 Air Fuel Ratio Sensor (Bank 1 Sensor 1) *6 Exhaust Manifold (TWC: Front Catalyst)
*7 No. 3 Front Exhaust Pipe Sub-assembly *8 Heated Oxygen Sensor (Bank 1 Sensor 2)
*9 Center Exhaust Pipe Assembly (TWC: Rear Catalyst) *10 Tail Exhaust Pipe Assembly
NOTE:
  • If DTC P0420 is output, replace the exhaust manifold (*6) and the center exhaust pipe assembly (*9) together when catalyst replacement is necessary (Excluding air fuel ratio sensor*5).
  • If DTC P0430 is output, replace the exhaust manifold assembly LH (*2) and the center exhaust pipe assembly (*9) together when catalyst replacement is necessary (Excluding air fuel ratio sensor*1).