DTC P2440: Secondary Air Injection System Switching Valve Stuck Open Bank1; DTC P2441: Secondary Air Injection System Switching Valve Stuck Close Bank1; DTC P2442: Secondary Air Injection System Switching Valve Stuck Open Bank 2; DTC P2443: Secondary Air Injection System Switching Valve Stuck Closed Bank 2 [08/2017 - 08/2018]: Wiring Diagram

WARNING: This page is about a different car, the 2018 Toyota Sequoia, 2017 Toyota Sequoia, and 2016 Toyota Sequoia. However, it is still accessible from the selected car via links, so may be relevant.

Refer to DTC P0412 (Refer to DTC P0412: Secondary Air Injection System Switching Valve "A" Circuit; DTC P0415: Secondary Air Injection System Switching Valve "B" Circuit [08/2017 - 08/2018] ).