Diagnosis & Repair
WARNING: This page is about a different car, the 2003 Toyota RAV4. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
If DTC P1600 exists, the ECM will not store any other DTCs. 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.
When access to, or replacement of ECM is necessary, Engine Control Module (ECM) is located behind glove box. See Figure. For ECM connector terminal view, see Figure.
For removal and installation of components, see REMOVAL, OVERHAUL & INSTALLATION - 4-CYLINDER article.