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Home >> Toyota >> 2016 >> Highlander XLE, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 39 (SFI System [1AR-FE] - Diagnostic Codes - (Except Hybrid) (6 Of 8)) >> SFI System >> DTC P0420: Catalyst System Efficiency Below Threshold (Bank 1) [12/2013 - 08/2014] >> Catalyst Location

Catalyst Location

WARNING: This page is about a different variant/trim than selected.
Fig 1: Entire Catalyst System
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*1 Air Fuel Ratio Sensor (Sensor 1) *2 Heated Oxygen Sensor (Sensor 2)
*3 TWC: Front Catalyst *4 TWC: Rear Catalyst
*5 Exhaust Manifold Converter Sub-assembly *6 Front Exhaust Pipe Assembly
*7 Center Exhaust Pipe Assembly *8 Tail Exhaust Pipe Assembly
NOTE:

Replace the front exhaust pipe assembly (*6) and the center exhaust pipe assembly (*7) together when catalyst replacement is necessary. (Excluding air fuel ratio sensor*1 and heated oxygen sensor*2