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Home >> Lexus >> 2024 >> TX 350 Base, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 38 (Engine Control System - Diagnostic Codes (4 Of 6)) >> SFI System >> DTC P0420-00: Catalyst System Efficiency Below Threshold Bank 1; DTC P0430-00: Catalyst System Efficiency Below Threshold Bank 2 [12/2023 - ] >> Catalyst Location

Catalyst Location

WARNING: This page is about a different car, the 2024 Lexus TX 550h+. However, it is still accessible from the selected car via links, so may be relevant.
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*1 Exhaust Manifold Assembly RH (TWC: Front Catalyst) *2 Exhaust Manifold Assembly LH (TWC: Front Catalyst)
*3 Air Fuel Ratio Sensor (Bank 1 Sensor 1) *4 Air Fuel Ratio Sensor (Bank 2 Sensor 1)
*5 Air Fuel Ratio Sensor (Bank 1 Sensor 2) *6 Air Fuel Ratio Sensor (Bank 2 Sensor 2)
*7 Front Exhaust Pipe Sub-assembly *8 Front No. 2 Exhaust Pipe Sub-assembly (TWC: Rear Catalyst)
*9 Front Exhaust Pipe Assembly (TWC: Rear Catalyst) *10 Tail Exhaust pipe Assembly