Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSTOYOTA2007HIGHLANDER 2WD V6-3.3L (3MZ-FE)REPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSSENSORS AND SWITCHES - COMPUTERS AND CONTROL SYSTEMSENGINE TEMPERATURE SENSORTESTING AND INSPECTION
2007 Toyota Highlander 2WD V6-3.3L (3MZ-FE)
Engine Temperature Sensor: Testing and Inspection
2007 Toyota Highlander 2WD V6-3.3L (3MZ-FE)SECTION Testing and Inspection
INSPECTION
INSPECT ENGINE COOLANT TEMPERATURE SENSOR
Measure the resistance between each terminal.
If the result is not as specified, replace the sensor.
NOTE: If checking the ECT sensor in the water, keep the terminals dry. After the check, wipe the sensor dry.
INSPECT ENGINE COOLANT TEMPERATURE SENSOR
Measure the resistance between each terminal.
If the result is not as specified, replace the sensor.
NOTE: If checking the ECT sensor in the water, keep the terminals dry. After the check, wipe the sensor dry.
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.