Engine Coolant Temperature Sensor (3MZ-FE): Replacement

DISCONNECT ENGINE WIRE NO. 3 (BATTERY NEGATIVE TERMINAL)
REMOVE RADIATOR LOWER AIR DEFLECTOR
DRAIN ENGINE COOLANT (See ENGINE COOLANT (3MZ-FE) )
REMOVE ENGINE COOLANT TEMPERATURE SENSOR
1. Disconnect the engine coolant temperature sensor connector.
2. Using a deep socket wrench 19, remove the engine coolant temperature sensor and gasket.
  
  Fig 1: Removing Engine Coolant Temperature Sensor
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
INSTALL ENGINE COOLANT TEMPERATURE SENSOR
1. Using a deep socket wrench 19, install a new gasket and the engine coolant temperature sensor.
  Torque: 20 N.m (200 kgf.cm, 14 ft.lbf)
2. Connect the engine coolant temperature sensor connector.
CONNECT ENGINE WIRE NO. 3 (BATTERY NEGATIVE TERMINAL)
Torque: 5.4 N.m (55 kgf.cm, 48 in.lbf)
ADD ENGINE COOLANT (see ENGINE COOLANT (3MZ-FE) )
CHECK FOR ENGINE COOLANT LEAKS (See ON-VEHICLE INSPECTION )
INSTALL RADIATOR LOWER AIR DEFLECTOR
SYSTEM INITIALIZATION (See PRECAUTION )