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 diagnosis and repair procedure, see Fig 1.
For ECM location, see Figure. For ECM connector terminal view, see Figure. For TPS circuit wiring diagram, see Figure. For location of emission related components, see Figure.
For testing of systems or components, see BASIC DIAGNOSTIC PROCEDURES - V6 & V8 article or SYSTEM & COMPONENT TESTING - V6 & V8 article. For removal and installation of components, see REMOVAL & INSTALLATION - V6 & V8 article.