Engine Coolant Temperature Sensor (For Hatchback) Removal

Engine Hybrid System. Yaris. Ncp93, 131
1Nz-Fe Engine Control. Yaris. Ncp93, 131

  1. DRAIN ENGINE COOLANT

  2. REMOVE NO. 2 CYLINDER HEAD COVER

  3. REMOVE AIR CLEANER CAP SUB-ASSEMBLY WITH NO. 1 AIR CLEANER HOSE

  4. REMOVE BATTERY

  5. REMOVE ENGINE COOLANT TEMPERATURE SENSOR

Engine Coolant Temperature Sensor (For Hatchback) -- Removal



1. DRAIN ENGINE COOLANT


Yaris. Ncp93, 131.1Nz-Fe Engine Control.Sfi System (For Sedan).Engine Coolant Temperature Sensor (For Hatchback)  Removal
NOTICE:
To avoid the danger of being burned, do not remove the water filler cap sub-assembly while the engine and radiator assembly are still hot. Thermal expansion will cause hot coolant and steam to blow out from the radiator assembly.
Text in Illustration
*1
Water Filler Cap Sub-assembly
*2
Radiator Drain Cock Plug
*3
Cylinder Block Drain Cock Plug
  1. Loosen the radiator drain cock plug.

  1. Remove the water filler cap sub-assembly.

  1. Loosen the cylinder block drain cock plug, then drain the coolant.



2. REMOVE NO. 2 CYLINDER HEAD COVER


    Yaris. Ncp93, 131
  1. Remove the 4 nuts and No. 2 cylinder head cover.



3. REMOVE AIR CLEANER CAP SUB-ASSEMBLY WITH NO. 1 AIR CLEANER HOSE


    Yaris. Ncp93, 131
  1. Disengage the clamp and disconnect the fuel vapor feed hose assembly from the No. 1 air cleaner hose.

  1. Loosen the 2 hose clamps and disconnect the fuel vapor feed hose assembly from the No. 1 air cleaner hose and vacuum switching valve assembly.



    Yaris. Ncp93, 131
  1. Disconnect the No. 2 fuel vapor feed hose from the intake manifold.



    Yaris. Ncp93, 131
  1. Disengage the 2 clamps and disconnect the wire harness from the air cleaner cap sub-assembly and vacuum switching valve assembly.

  1. Disconnect the mass air flow meter connector.

  1. Disconnect the vacuum switching valve connector.



    Yaris. Ncp93, 131
  1. Loosen the hose clamp and disconnect the No. 1 air cleaner hose from the throttle with motor body assembly.

  1. Disengage the 2 clamps and remove the air cleaner cap sub-assembly with No. 1 air cleaner hose.



4. REMOVE BATTERY


Yaris. Ncp93, 131
  1. Disconnect the battery terminal.

  1. Remove the 2 nuts and the battery clamp.

  1. Remove the battery.



5. REMOVE ENGINE COOLANT TEMPERATURE SENSOR


    Yaris. Ncp93, 131
  1. Disconnect the engine coolant temperature sensor connector.



    Yaris. Ncp93, 131
  1. Using a 19 mm deep socket wrench, remove the engine coolant temperature sensor and gasket.