Catalyst Location
WARNING: This page is about a different car, the 2016 Toyota Sienna. However, it is still accessible from the selected car via links, so may be relevant.
TEXT IN ILLUSTRATION
| *A | for 2WD | - | - |
| *1 | Air Fuel Ratio Sensor (Bank 2 Sensor 1) |
*2 | Air Fuel Ratio Sensor (Bank 1 Sensor 1) |
| *3 | Heated Oxygen Sensor (Bank 2 Sensor 2) |
*4 | Heated Oxygen Sensor (Bank 1 Sensor 2) |
| *5 | TWC: Front Catalyst | *6 | Front Exhaust Pipe Assembly |
| *7 | Tail Exhaust Pipe Assembly | *8 | TWC: Rear Catalyst |
| *9 | Exhaust Manifold Sub-assembly LH | *10 | Exhaust Manifold Sub-assembly RH |
| *11 | Center Exhaust Pipe Assembly | - | - |
NOTE:
- When outputting DTC P0420 replace the exhaust manifold sub-assembly RH (*10) and the center exhaust pipe assembly (*11) together when catalyst replacement is necessary (Excluding air fuel ratio sensor *2 and heated oxygen sensor *4).
- When outputting DTC P0430 replace the exhaust manifold sub-assembly LH (*9) and the front exhaust pipe assembly (*11) together when catalyst replacement is necessary (Excluding air fuel ratio sensor *1 and heated oxygen sensor *3).
TEXT IN ILLUSTRATION
| *A | for 4WD | - | - |
| *1 | Air Fuel Ratio Sensor (Bank 2 Sensor 1) |
*2 | Air Fuel Ratio Sensor (Bank 1 Sensor 1) |
| *3 | Heated Oxygen Sensor (Bank 2 Sensor 2) |
*4 | Heated Oxygen Sensor (Bank 1 Sensor 2) |
| *5 | TWC: Front Catalyst | *6 | TWC: Rear Catalyst |
| *7 | Front Exhaust Pipe Assembly | *8 | Tail Exhaust Pipe Assembly |
| *9 | Exhaust Manifold Sub-assembly LH | *10 | Exhaust Manifold Sub-assembly RH |
| *11 | Center Exhaust Pipe Assembly | - | - |
NOTE:
- When outputting DTC P0420 replace the exhaust manifold sub-assembly RH (*10) and the center exhaust pipe assembly (*11) together when catalyst replacement is necessary (Excluding air fuel ratio sensor *2 and heated oxygen sensor *4).
- When outputting DTC P0430 replace the exhaust manifold sub-assembly LH (*9) and the front exhaust pipe assembly (*11) together when catalyst replacement is necessary (Excluding air fuel ratio sensor *1 and heated oxygen sensor *3).