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Home >> Toyota >> 2011 >> Highlander Hybrid Limited >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 70 (Engine Control System (2GR-FE) (Diagnostic Codes (P00351-P1603) & Circuit Tests)) >> SFI System >> DTC P0420: Catalyst System Efficiency Below Threshold (Bank 1); DTC P0430: Catalyst System Efficiency Below Threshold (Bank 2) >> Catalyst Location

Catalyst Location

WARNING: This page is about a different variant/trim than selected.
Fig 1: Identifying Catalyst System Components
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TEXT IN ILLUSTRATION

*1 Exhaust Manifold Sub-assembly LH
(TWC: Front Catalyst)
*2 Exhaust Manifold Sub-assembly RH
(TWC: Front Catalyst)
*3 Air Fuel Ratio Sensor
(Bank 2 Sensor 1)
*4 Air Fuel Ratio Sensor
(Bank 1 Sensor 1)
*5 Front Exhaust Pipe Assembly *6 Heated Oxygen Sensor
(Bank 2 Sensor 2)
*7 Front No. 3 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