Component Testing
WARNING: This page does not describe the selected car, but rather 16 other vehicles, including the 2002 Toyota Tundra, 2002 Toyota Tacoma, 2002 Toyota Sienna, 2002 Toyota Sequoia, and 2002 Toyota RAV4. However, it is still accessible from the selected car via links, so may be relevant.
Heat suspected component with a hair dryer while checking for a malfunction to occur. DO NOT apply heat directly to components in Engine Control Module (ECM). DO NOT heat any component to more than 140°F (60°C).