Pin Voltage Tests
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2002 Toyota RAV4, 2002 Toyota Highlander, 2002 Toyota Camry, 2002 Lexus RX 300, and 2001 Toyota RAV4. However, it is still accessible from the selected car via links, so may be relevant.
Access ECM located behind glove compartment. Turn ignition switch to ON position. Using a DVOM, backprobe ECM harness connector. Measure voltage between selected terminals. Voltage should be as specified. See Fig 1-Fig 5.