Diagnosis & Repair
WARNING: This page is about a different car, the 2003 Toyota Camry Solara. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
Read freeze frame data using the hand-held tester or OBD II scan tool, as freeze frame data records the engine conditions when a malfunction is detected. When trouble shooting, it is useful for determining whether the vehicle was running or stopped, the engine was warmed up or not, the air-fuel ratio was lean or rich, etc. at the time of the malfunction.
For diagnosis and repair with hand-held tester, see Fig 1. For diagnosis and repair with OBD II scan tool, see Fig 2. To check for intermittent problems, see INTERMITTENT PROBLEM CHECK under SELF-DIAGNOSTIC SYSTEM. For ECM location, see ENGINE CONTROL MODULE LOCATION under SELF-DIAGNOSTIC SYSTEM. To check ECM inputs and outputs, see PIN VOLTAGE CHARTS article. For removal and installation, see REMOVAL, OVERHAUL & INSTALLATION - 4-CYLINDER article. To identify circuits referenced in testing, see appropriate WIRING DIAGRAM under ENGINE PERFORMANCE in SYSTEM WIRING DIAGRAMS article.