Power & Ground Circuits
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2000 Toyota Tundra, 2000 Toyota Tacoma, 2000 Toyota Sienna, 2000 Toyota Land Cruiser, and 2000 Toyota Camry Solara. However, it is still accessible from the selected car via links, so may be relevant.
For testing of Engine Control Module (ECM) power and ground circuits, see ENGINE CONTROL MODULE (ECM) POWER SOURCE CIRCUIT . Also see PIN VOLTAGE CHARTS article. For illustration of ECM location, see THEORY & OPERATION article. For identification of ECM electrical connector terminals, see Fig 1-Fig 10 .
Fig 8: Identifying ECM Electrical Connector Terminals (Tundra 3.4L V6 Except Calif. Emission Vehicles)