Engine Coolant Temperature Sensor: Inspection

1. Remove the nut and 3 bolts, and disconnect the throttle body from the intake manifold.

1. Disconnect the ECT sensor connector.
2. Remove the ECT sensor and gasket.
   Fig 1: Removing ECT Sensor

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Using an ohmmeter, measure the resistance between the terminals.

   Resistance: Refer to the  

   If the resistance is not as specified, replace the ECT sensor.

1. Install a new gasket and the ECT sensor.

   Torque: 19.6 N*m (200 kgf*cm, 14 ft.*lbf) 

2. Connect the ECT sensor connector.

1. Install a new gasket and the throttle body with the 2 bolts and 2 nuts.

   Torque: 20 N*m (204 kgf*cm, 15 ft.*lbf) 

(See REPLACEMENT )

Fig 2: Measuring Resistance Between ECT Sensor Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002