Diagnosis & Repair
WARNING: This page is about a different car, the 2003 Toyota Matrix and 2003 Toyota Corolla. However, it is still accessible from the selected car via links, so may be relevant.
For diagnosis and repair, see Fig 1 and Fig 2 . For ECM location, see Figure. To check for intermittent problems, see INTERMITTENT PROBLEM CHECK under SELF-DIAGNOSTIC SYSTEM. For removal and installation of components, see REMOVAL & INSTALLATION - 4-CYLINDER article. To check for ECM inputs and outputs, see PIN VOLTAGE CHARTS article.