Engine Coolant Temperature (ECT) Sensor: Inspection

REMOVE NO. 2 TIMING BELT COVER (See TIMING BELT (5VZ-FE) )
REMOVE FUEL PIPE

Fig 1: Removing Fuel Pipe
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REMOVE ECT SENSOR
1. Disconnect the sensor connector.
2. Using a 19 mm deep socket wrench, remove the sensor and gasket.
Fig 2: Removing Sensor And Gasket
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
INSPECT ECT SENSOR
Using an ohmmeter, measure the resistance between the terminals.

Resistance: Refer to the graph

If the resistance is not as specified, replace the sensor.
REINSTALL ECT SENSOR
1. Install a new gasket to the sensor.
2. Using a 19 mm deep socket, install the sensor.
  Torque: 19.6 N.m (200 kgf.cm, 14 ft.lbf)
3. Connect the sensor connector.
REINSTALL FUEL PIPE
Install the fuel pipe with 4 new gaskets and the 2 union bolts.

Torque: 34.3 N.m (350 kgf.cm, 25 ft.lbf)
REINSTALL NO. 2 TIMING BELT COVER (See TIMING BELT (5VZ-FE) )

Fig 3: Measuring Resistance Between Terminals
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002