All Models
WARNING: This page does not describe the selected car, but rather 10 other vehicles, including the 2002 Toyota Tundra, 2002 Toyota Tacoma, 2002 Toyota Sienna, 2002 Toyota Sequoia, and 2002 Toyota Land Cruiser. However, it is still accessible from the selected car via links, so may be relevant.
- Ensure ignition is off. Note location of Engine Coolant Temperature (ECT) sensor. See ENGINE COOLANT TEMPERATURE SENSOR LOCATION table. Remove ECT sensor. See ENGINE COOLANT TEMPERATURE SENSOR under ENGINE SENSORS & SWITCHES in REMOVAL, OVERHAUL & INSTALLATION - V6 & V8 article.
- Place probe end of ECT sensor and thermometer in container of water. Attach ohmmeter between electrical terminals on ECT sensor. Heat water and note that resistance is within specification in relation to temperature. See Fig 1. Replace ECT sensor if resistance is not within specification.ENGINE COOLANT TEMPERATURE SENSOR LOCATION
Model Location Avalon On Coolant Housing In Front Of Intake Manifold, At Timing Belt End Of Engine & Contains Dark Gray 2-Pin Electrical Connector With Green/Yellow & White Wires Camry & Camry Solara On Coolant Housing In Front Of Intake Manifold, At Timing Belt End Of Engine & Contains Dark Gray 2-Pin Electrical Connector With Green/Black & Brown Wires Highlander On Coolant Housing In Front Of Intake Manifold, At Timing Belt End Of Engine & Contains Dark Gray 2-Pin Electrical Connector With White/Blue & White Wires Land Cruiser Passenger's Side Of Coolant Pipe At Front Of Engine, In Front Of Intake Manifold & Contains Black 2-Pin Electrical Connector With Green/Black & Brown/White Wires Sequoia Passenger's Side Of Coolant Pipe At Front Of Engine, In Front Of Intake Manifold & Contains Black 2-Pin Electrical Connector With Green/White & Green/Yellow Wires Sienna On Coolant Housing In Front Of Intake Manifold, At Timing Belt End Of Engine & Contains Dark Gray 2-Pin Electrical Connector With Green/Black & Brown Wires Tacoma Behind Upper Timing Belt Cover, On Top Of Intake Manifold & Contains Dark Gray 2-Pin Electrical Connector With Green/Red & Brown/Black Wires Tundra 3.4L V6 Behind Upper Timing Belt Cover, On Top Of Intake Manifold & Contains Dark Gray 2-Pin Electrical Connector With Green/Yellow & Brown/Black Wires 4.7L V8 Passenger's Side Of Coolant Pipe At Front Of Engine, In Front Of Intake Manifold & Contains Black 2-Pin Electrical Connector With Green & Green/White Wires 4Runner Behind Upper Timing Belt Cover, On Top Of Intake Manifold & Contains Dark Gray 2-Pin Electrical Connector With Green/Yellow & Brown Wires