Catalyst Location
WARNING: This page does not describe the selected car, but rather 14 other vehicles, including the 2024 Lexus IS 350, 2024 Lexus IS 300, 2023 Lexus IS 350, 2023 Lexus IS 300, and 2022 Lexus IS 350. However, it is still accessible from the selected car via links, so may be relevant.
| *A | for 2WD | *B | for AWD |
| *1 | Air Fuel Ratio Sensor (Bank 1 Sensor 1) | *2 | Air Fuel Ratio Sensor (Bank 2 Sensor 1) |
| *3 | Heated Oxygen Sensor (Bank 1 Sensor 2) | *4 | Heated Oxygen Sensor (Bank 2 Sensor 2) |
| *5 | TWC: Front Catalyst | *6 | TWC: Rear Catalyst |
| *7 | Front Exhaust Pipe Assembly | *8 | Tail Exhaust Pipe Assembly RH |
| *9 | Tail Exhaust Pipe Assembly LH | *10 | Exhaust Manifold Sub-assembly RH |
| *11 | Exhaust Manifold Sub-assembly LH | - | - |
NOTE:
- If DTC P0420-00 is output, replace the exhaust manifold sub-assembly RH (*10) and the front exhaust pipe assembly (*7) together when catalyst replacement is necessary (Excluding air fuel ratio sensor*1 and heated oxygen sensor*3).
- If DTC P0430-00 is output, replace the exhaust manifold sub-assembly LH (*11) and the front exhaust pipe assembly (*7) together when catalyst replacement is necessary (Excluding air fuel ratio sensor*2 and heated oxygen sensor*4).