Diagnosis & Repair
WARNING: This page is about a different car, the 2003 Toyota Camry. However, it is still accessible from the selected car via links, so may be relevant.
For wiring diagram, see DTC P0441, DTC P0442, DTC P0446 & DTC P0456 . For diagnosis and repair, see Fig 1 and Fig 2 . To check the ECM, see PIN VOLTAGE CHARTS article. For ECM location, see ENGINE CONTROL MODULE LOCATION under SELF-DIAGNOSTIC SYSTEM. For removal and installation of components, see REMOVAL & INSTALLATION - 4-CYLINDER article.