DTC P0171: System Too Lean (Bank 1); DTC P0172: System Too Rich (Bank 1); DTC P0174: System Too Lean (Bank 2); DTC P0175: System Too Rich (Bank 2) [12/2015 - 08/2016]: Wiring Diagram
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.
- Refer to DTC P0102 (Refer to WIRING DIAGRAM ).
- Refer to DTC P2195 (Refer to WIRING DIAGRAM ).