Diagnosis & Repair
NOTE:
Using Toyota hand-held tester or scan tool, read FREEZE FRAME data. Freeze frame data records engine conditions when malfunction is detected.
For circuit wiring diagram, diagnosis and repair procedure, see Fig 1-Fig 2 .
For location of emission related components, see Figure.
For ECM location, see Figure. For ECM connector terminal view, see Figure.
For testing of systems or components, see SYSTEM & COMPONENT TESTING - 4-CYLINDER article. For removal and installation of components, see REMOVAL & INSTALLATION - 4-CYLINDER article.