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Engine Cooling System (Service Information): Other Lexus IS III

Cooling System (Mechanical) 16 illustrations ~3794 words

PROCEDURE

  1. INSPECT FOR COOLANT LEAK HINT: Before performing this inspection, check that there are no coolant leaks from any parts other than the engine water pump assembly. If there are leaks, inspect those areas first. Perform this inspection when the engine is cold. Visually inspect the engine compartment for the following conditions: There is a large amount of engine coolant in the engine compartment or on the underside of the hood near the V-ribbed belt. Engine coolant is dripping from around the engine water pump assembly. The engine coolant level in the radiator reserve tank assembly is below the low line and there are traces of leakage around the engine water pump assembly. If any of the above conditions exist, replace the engine water pump assembly. If none of the above conditions exist, perform the following inspection (inspection of the area around the engine water pump assembly). Remove the V-ribbed belt. Refer to «REMOVAL [04/2013 - ]»(ref-665703-S25978130992014102400000) Remove the water pump pulley. See step 10 HINT: Move the water pump pulley so that the drain plug can be reached. Inspect the area around the engine water pump assembly. HINT: Check for deposits around the drain plug of the engine water pump assembly. Press a piece of paper towel against the drain plug and check that the paper towel is not wet and that there are no deposits on the lip of the drain plug. *a Drain Plug If the paper towel is wet, replace the engine water pump assembly. If the paper towel is not wet, thoroughly clean the area around the engine water pump assembly. Install the water pump pulley. See step 4
  2. INSPECT ENGINE WATER PUMP ASSEMBLY Turn the water pump pulley and check that the bearing of the engine water pump assembly moves smoothly and quietly. If necessary, replace the engine water pump assembly. Install the V-ribbed belt. Refer to «INSTALLATION [04/2013 - ]»(ref-665703-S21534369332014102400000)

Scheme 8

Scheme 8: PROCEDURE
Scheme 8: PROCEDURE
  1. REMOVE COMPRESSOR AND MAGNETIC CLUTCH (for 2WD) Refer to «REMOVAL [04/2013 - ]»(ref-665718-S37916415182014102400000)
  2. REMOVE COMPRESSOR AND MAGNETIC CLUTCH (for AWD) Refer to «REMOVAL [04/2013 - ]»(ref-665718-S30893690972014102400000)
  3. DRAIN ENGINE COOLANT See step 4
  4. REMOVE V-RIBBED BELT TENSIONER ASSEMBLY Refer to «PROCEDURE - Step 11»(ref-665703-S11054630042014102400000)
  5. REMOVE NO. 1 RADIATOR HOSE See step 11
  6. DISCONNECT NO. 2 RADIATOR HOSE See step 6
  7. REMOVE NO. 1 ENGINE COVER Refer to «PROCEDURE - Step 6»(ref-665752-S37873769332014102400000)
  8. REMOVE INJECTOR DRIVER Refer to «PROCEDURE - Step 7»(ref-665752-S37873769332014102400000)
  9. REMOVE NO. 2 ENGINE COVER Refer to «PROCEDURE - Step 2»(ref-665703-S11054630042014102400000)
  10. REMOVE WATER PUMP PULLEY Using SST, hold the water pump pulley. SST: 09960-10010 09962-01000 09963-00700 Remove the 4 bolts and water pump pulley.
  11. REMOVE WATER INLET Slide the clip and disconnect the No. 2 water by-pass hose from the water inlet. *1 No. 2 Water By-pass Hose *2 No. 3 Water By-pass Hose *3 No. 4 Water By-pass Hose *4 No. 6 Water By-pass Hose *5 Radiator Reserve Tank Hose Slide the clip and disconnect the No. 3 water by-pass hose from the water inlet. Slide the clip and disconnect the No. 4 water by-pass hose from the water inlet. Slide the clip and disconnect the No. 6 water by-pass hose from the water inlet. Slide the clip and disconnect the radiator reserve tank hose from the water inlet. Remove the 4 bolts, nut and water inlet. Bolt Nut Remove the No. 1 water inlet housing gasket and water outlet pipe O-ring. *1 No. 1 Water Inlet Housing Gasket *2 Water Outlet Pipe O-ring
  12. REMOVE NO. 2 IDLER PULLEY SUB-ASSEMBLY Remove the bolt, No. 2 idler pulley cover plate and No. 2 idler pulley sub-assembly.
  13. REMOVE ENGINE WATER PUMP ASSEMBLY Remove the 16 bolts, engine water pump assembly and water pump gasket.
  1. INSTALL ENGINE WATER PUMP ASSEMBLY Install a new water pump gasket and the engine water pump assembly with the 16 bolts. Bolt A Bolt B Bolt C Bolt A Torque: 21 N*m (214 kgf*cm, 15 ft.*lbf) Bolt B and C Torque: 11 N*m (112 kgf*cm, 8 ft.*lbf) NOTE: Make sure that there is no oil on the threads of the bolts (A). Be sure to replace the 2 bolts (C) with new ones or reuse them after applying adhesive. Adhesive Toyota Genuine Adhesive 1344, Three Bond 1344 or equivalent Standard Length Item Length Bolt A 55 mm (2.17 in.) Bolt B, C 22 mm (0.87 in.)
  2. INSTALL NO. 2 IDLER PULLEY SUB-ASSEMBLY Install the No. 2 idler pulley sub-assembly and No. 2 idler pulley cover plate with the bolt. Torque: 43 N*m (438 kgf*cm, 32 ft.*lbf)
  3. INSTALL WATER INLET Install a new No. 1 water inlet housing gasket and water outlet pipe O-ring. Install the water inlet with the 4 bolts and nut. Torque: 10 N*m (102 kgf*cm, 7 ft.*lbf) NOTE: Be careful not to allow the No. 1 water inlet housing gasket and water outlet pipe O-ring to get caught between the parts. Connect the No. 2 water by-pass hose to the water inlet and slide the clip to secure it. Connect the No. 3 water by-pass hose to the water inlet and slide the clip to secure it. Connect the No. 4 water by-pass hose to the water inlet and slide the clip to secure it. Connect the No. 6 water by-pass hose to the water inlet and slide the clip to secure it. Connect the radiator reserve tank hose to the water inlet and slide the clip to secure it.
  4. INSTALL WATER PUMP PULLEY Temporarily install the water pump pulley with the 4 bolts. Using SST, hold the water pump pulley and tighten the 4 bolts. SST: 09960-10010 09962-01000 09963-00700 Torque: 21 N*m (214 kgf*cm, 15 ft.*lbf)
  5. INSTALL NO. 2 ENGINE COVER Refer to «PROCEDURE - Step 28»(ref-665703-S08519614782014102400000)
  6. INSTALL INJECTOR DRIVER Refer to «PROCEDURE - Step 1»(ref-665752-S17989845222014102400000)
  7. INSTALL NO. 1 ENGINE COVER Refer to «PROCEDURE - Step 2»(ref-665752-S17989845222014102400000)
  8. CONNECT NO. 2 RADIATOR HOSE See step 3
  9. INSTALL NO. 1 RADIATOR HOSE See step 9
  10. INSTALL V-RIBBED BELT TENSIONER ASSEMBLY Refer to «PROCEDURE - Step 18»(ref-665703-S08519614782014102400000)
  11. INSTALL COMPRESSOR AND MAGNETIC CLUTCH (for 2WD) Refer to «INSTALLATION [04/2013 - ]»(ref-665718-S24247534412014102400000)
  12. INSTALL COMPRESSOR AND MAGNETIC CLUTCH (for AWD) Refer to «INSTALLATION [04/2013 - ]»(ref-665718-S08119568252014102400000)
  13. ADD ENGINE COOLANT See step 5
  14. INSPECT FOR COOLANT LEAK Refer to «PROCEDURE - Step 1»(ref-665770-S12066795872014102400000)

Scheme 9

Scheme 9: ILLUSTRATION
Scheme 9: ILLUSTRATION

*A for AWD *B for 2WD *1 CENTER NO. 4 ENGINE UNDER COVER *2 COOL AIR INTAKE DUCT SEAL *3 INLET NO. 1 AIR CLEANER *4 NO. 2 RADIATOR HOSE *5 NO. 6 WATER BY-PASS HOSE *6 V-BANK COVER SUB-ASSEMBLY *7 WATER INLET WITH THERMOSTAT SUB-ASSEMBLY *8 GASKET N*m (kgf*cm, ft.*lbf): Specified torque • Non-reusable part

  1. REMOVE COOL AIR INTAKE DUCT SEAL Refer to «PROCEDURE - Step 1»(ref-665772-S07495103672014102400000)
  2. REMOVE V-BANK COVER SUB-ASSEMBLY Refer to «PROCEDURE - Step 3»(ref-665703-S21356895402014102400000)
  3. REMOVE INLET NO. 1 AIR CLEANER Refer to «PROCEDURE - Step 20»(ref-665703-S21356895402014102400000)
  4. REMOVE CENTER NO. 4 ENGINE UNDER COVER Refer to «PROCEDURE - Step 2»(ref-665705-S34609640792014102400000)
  5. DRAIN ENGINE COOLANT See step 4
  6. DISCONNECT NO. 2 RADIATOR HOSE Slide the clip and disconnect the No. 2 radiator hose from the water inlet with thermostat sub-assembly.
  7. DISCONNECT NO. 6 WATER BY-PASS HOSE Slide the clip and disconnect the No. 6 water by-pass hose from the water inlet.
  8. REMOVE WATER INLET WITH THERMOSTAT SUB-ASSEMBLY Remove the 3 nuts, water inlet with thermostat sub-assembly and gasket.

Scheme 10

Scheme 10: PROCEDURE
Scheme 10: PROCEDURE

Scheme 11

Scheme 11
Scheme 11
  1. INSPECT WATER INLET WITH THERMOSTAT SUB-ASSEMBLY HINT: The valve opening temperature is inscribed on the water inlet with thermostat sub-assembly. Immerse the water inlet with thermostat sub-assembly in water, and then gradually heat the water. Check that the valve of the water inlet with thermostat sub-assembly opens at the specified temperature. Standard Valve Opening Temperature 80 to 84°C (176 to 183°F) If the result is not as specified, replace the water inlet with thermostat sub-assembly. Check the valve lift. *a Valve Lift Standard Valve Lift 8.0 mm (0.315 in.) or more at 95°C (203°F) If the result is not as specified, replace the water inlet with thermostat sub-assembly. Check that the valve is fully closed when the water inlet with thermostat sub-assembly is at low temperatures (below 77°C (171°F)). If it is not fully closed, replace the water inlet with thermostat sub-assembly.
  1. INSTALL WATER INLET WITH THERMOSTAT SUB-ASSEMBLY Install a new gasket and the water inlet with thermostat sub-assembly with the 3 nuts. Torque: 10 N*m (102 kgf*cm, 7 ft.*lbf)
  2. CONNECT NO. 6 WATER BY-PASS HOSE Connect the No. 6 water by-pass hose to the water inlet and slide the clip to secure it.
  3. CONNECT NO. 2 RADIATOR HOSE Connect the No. 2 radiator hose to the water inlet with thermostat sub-assembly and slide the clip to secure it.
  4. INSTALL INLET NO. 1 AIR CLEANER Refer to «PROCEDURE - Step 74»(ref-665703-S03876486602014102400000)
  5. ADD ENGINE COOLANT See step 5
  6. INSPECT FOR COOLANT LEAK Refer to «PROCEDURE - Step 1»(ref-665770-S12066795872014102400000)
  7. INSTALL CENTER NO. 4 ENGINE UNDER COVER Refer to «PROCEDURE - Step 9»(ref-665705-S34609640792014102400000)
  8. INSTALL V-BANK COVER SUB-ASSEMBLY Refer to «PROCEDURE - Step 104»(ref-665703-S03876486602014102400000)
  9. INSTALL COOL AIR INTAKE DUCT SEAL Refer to «PROCEDURE - Step 3»(ref-665772-S23921011662014102400000)

Scheme 12

Scheme 12: ILLUSTRATION
Scheme 12: ILLUSTRATION

*A for AWD *B for 2WD *1 COOL AIR INTAKE DUCT SEAL *2 ENGINE ROOM ECU OUTLET DUCT *3 ENGINE ROOM MAIN WIRE *4 FAN SHROUD ASSEMBLY *5 INLET NO. 1 AIR CLEANER *6 ENGINE UNDER COVER *7 NO. 1 RADIATOR HOSE *8 NO. 2 RADIATOR HOSE *9 RADIATOR RESERVE TANK ASSEMBLY *10 V-BANK COVER SUB-ASSEMBLY *11 RADIATOR HOSE CLAMP - - N*m (kgf*cm, ft.*lbf): Specified torque • Non-reusable part

Scheme 13

Scheme 13: ILLUSTRATION
Scheme 13: ILLUSTRATION

*1 COOLING FAN ECU *2 COOLING FAN MOTOR *3 FAN *4 NO. 2 COOLING FAN MOTOR *5 NO. 2 FAN *6 FAN SHROUD N*m (kgf*cm, ft.*lbf): Specified torque

  1. CHECK COOLING FAN MOTOR Disconnect the cooling fan motor connector. Check that the cooling fan motor operates smoothly when the battery is connected to the cooling fan motor connector. *a Component without harness connected (Cooling Fan Motor) Measure the current while the cooling fan motor is operating. Standard Current Condition Specified Condition Battery voltage applied at 20°C (68°F) 7.8 to 13.8 A If the result is not as specified, replace the cooling fan motor. Connect the cooling fan motor connector.
  2. CHECK NO. 2 COOLING FAN MOTOR Disconnect the No. 2 cooling fan motor connector. Check that the No. 2 cooling fan motor operates smoothly when the battery is connected to the No. 2 cooling fan motor connector. *a Component without harness connected (No. 2 Cooling Fan Motor) Measure the current while the No. 2 cooling fan motor is operating. Standard Current Condition Specified Condition Battery voltage applied at 20°C (68°F) 7.8 to 13.8 A If the result is not as specified, replace the No. 2 cooling fan motor. Connect the No. 2 cooling fan motor connector.

Scheme 14

Scheme 14: PROCEDURE
Scheme 14: PROCEDURE

Scheme 15

Scheme 15
Scheme 15

Scheme 16

Scheme 16
Scheme 16
  1. REMOVE COOL AIR INTAKE DUCT SEAL Refer to «PROCEDURE - Step 1»(ref-665772-S07495103672014102400000)
  2. REMOVE INLET NO. 1 AIR CLEANER Refer to «PROCEDURE - Step 20»(ref-665703-S21356895402014102400000)
  3. REMOVE V-BANK COVER SUB-ASSEMBLY Refer to «PROCEDURE - Step 3»(ref-665703-S21356895402014102400000)
  4. REMOVE ENGINE UNDER COVER
  5. DRAIN ENGINE COOLANT See step 4
  6. REMOVE NO. 1 RADIATOR HOSE See step 11
  7. DISCONNECT NO. 2 RADIATOR HOSE See step 12
  8. REMOVE RADIATOR RESERVE TANK ASSEMBLY See step 10
  9. DISCONNECT ENGINE ROOM MAIN WIRE See step 13
  10. REMOVE ENGINE ROOM ECU OUTLET DUCT See step 16
  11. REMOVE FAN SHROUD ASSEMBLY Disengage the 3 claws. Disengage the 3 guides and remove the fan shroud assembly from the radiator assembly. NOTE: Do not damage the radiator assembly when removing the fan shroud assembly.
  12. REMOVE COOLING FAN ECU Disconnect the cooling fan motor connector and No. 2 cooling fan motor connector. Disconnect the 4 clamps and wire harness. Remove the 2 screws and cooling fan ECU.
  13. REMOVE FAN Remove the nut and fan.
  14. REMOVE NO. 2 FAN Remove the nut and No. 2 fan.
  15. REMOVE COOLING FAN MOTOR Remove the 3 screws and cooling fan motor.
  16. REMOVE NO. 2 COOLING FAN MOTOR Remove the 3 screws and No. 2 cooling fan motor.
  1. INSTALL NO. 2 COOLING FAN MOTOR Install the No. 2 cooling fan motor with the 3 screws. Torque: 2.6 N*m (27 kgf*cm, 23 in.*lbf)
  2. INSTALL COOLING FAN MOTOR Install the cooling fan motor with the 3 screws. Torque: 3.9 N*m (40 kgf*cm, 35 in.*lbf)
  3. INSTALL NO. 2 FAN NOTE: Do not reverse the position of the fan and No. 2 fan when installing them. Doing so may damage the parts. Install the No. 2 fan with the nut. Torque: 6.3 N*m (64 kgf*cm, 56 in.*lbf)
  4. INSTALL FAN NOTE: Do not reverse the position of the fan and No. 2 fan when installing them. Doing so may damage the parts. Install the fan with the nut. Torque: 6.3 N*m (64 kgf*cm, 56 in.*lbf)
  5. INSTALL COOLING FAN ECU Install the cooling fan ECU with the 2 screws. Torque: 2.6 N*m (27 kgf*cm, 23 in.*lbf) Connect the 4 clamps and wire harness. Connect the cooling fan motor connector and No. 2 cooling fan motor connector.
  6. INSTALL FAN SHROUD ASSEMBLY Engage the 3 guides. Engage the 3 claws and install the fan shroud assembly to the radiator assembly. NOTE: Do not damage the radiator assembly when installing the fan shroud assembly.
  7. INSTALL ENGINE ROOM ECU OUTLET DUCT See step 4
  8. CONNECT ENGINE ROOM MAIN WIRE See step 7
  9. INSTALL RADIATOR RESERVE TANK ASSEMBLY See step 10
  10. CONNECT NO. 2 RADIATOR HOSE See step 8
  11. INSTALL NO. 1 RADIATOR HOSE See step 9
  12. INSTALL INLET NO. 1 AIR CLEANER Refer to «PROCEDURE - Step 74»(ref-665703-S03876486602014102400000)
  13. ADD ENGINE COOLANT See step 5
  14. INSPECT FOR COOLANT LEAK Refer to «PROCEDURE - Step 1»(ref-665770-S12066795872014102400000)
  15. INSTALL ENGINE UNDER COVER
  16. INSTALL V-BANK COVER SUB-ASSEMBLY Refer to «PROCEDURE - Step 104»(ref-665703-S03876486602014102400000)
  17. INSTALL COOL AIR INTAKE DUCT SEAL Refer to «PROCEDURE - Step 3»(ref-665772-S23921011662014102400000)

Scheme 17

Scheme 17: PROCEDURE
Scheme 17: PROCEDURE
  1. INSPECT COOLING FAN ECU Check and ensure the following conditions: The engine switch is off. The engine coolant temperature is less than 92°C (198°F). The battery voltage is between 11 to 14 V. The A/C switch is off. Connect the pickup of a clamp-on ammeter around one of the two wires for the cooling fan motor. Turn the engine switch on (IG) and wait for approximately 10 seconds. Check that the fan is not operating. Start the engine. Check that the fan is not operating with the engine idling. HINT: Make sure that the engine coolant temperature is less than 92°C (198°F). Turn the A/C switch off. Check that the fan operates when the A/C switch is turned on. Standard Current Item Condition Specified Condition Cooling fan motor Battery voltage applied at 20°C (68°F) 7.8 to 13.8 A No. 2 cooling fan motor 7.8 to 13.8 A HINT: Make sure that the engine coolant temperature is less than 92°C (198°F). Check that the fan operates when the engine coolant temperature sensor connector is disconnected. Standard Current Item Condition Specified Condition Cooling fan motor Battery voltage applied at 20°C (68°F) 7.8 to 13.8 A No. 2 cooling fan motor 7.8 to 13.8 A After the engine is warmed up, check that the fan operates as shown in the illustration. *a Operating Diagram *b A/C OFF *c MAX HI *d HI *e LO *f MAX LO *g Fan Speed HINT: The engine coolant temperature at which the fan starts operating is approximately 94°C (201°F). This system can also be checked using the Techstream. Enter the following menus: Powertrain / Engine / Data List / Coolant Temp. Powertrain > Engine > Data List Tester Display Coolant Temp

Scheme 18

Scheme 18: ILLUSTRATION
Scheme 18: ILLUSTRATION

*A for AWD *B for 2WD *1 COOL AIR INTAKE DUCT SEAL *2 INLET NO. 1 AIR CLEANER *3 ENGINE UNDER COVER *4 V-BANK COVER SUB-ASSEMBLY N*m (kgf*cm, ft.*lbf): Specified torque

Scheme 19

Scheme 19: ILLUSTRATION
Scheme 19: ILLUSTRATION

*A w/ Dynamic Radar Cruise Control System - - *1 ENGINE ROOM MAIN WIRE *2 HOOD LOCK ASSEMBLY *3 HOOD LOCK CONTROL CABLE ASSEMBLY *4 HOOD LOCK RELEASE LEVER PROTECTOR *5 MILLIMETER WAVE RADAR SENSOR ASSEMBLY *6 UPPER RADIATOR SUPPORT SUB-ASSEMBLY *7 WIRE HARNESS - - N*m (kgf*cm, ft.*lbf): Specified torque

Scheme 20

Scheme 20: ILLUSTRATION
Scheme 20: ILLUSTRATION
*1COOLER CONDENSER ASSEMBLY*2ENGINE ROOM ECU OUTLET DUCT
*3LOWER RADIATOR SUPPORT*4NO. 1 RADIATOR HOSE
*5NO. 2 RADIATOR HOSE*6RADIATOR ASSEMBLY
*7RADIATOR RESERVE TANK ASSEMBLY*8RADIATOR SUPPORT CUSHION
*9FAN SHROUD ASSEMBLY*10RADIATOR HOSE CLAMP
Non-reusable part
  1. CHECK RADIATOR CAP SUB-ASSEMBLY Measure the valve opening pressure. If there are water stains or foreign matter on the rubber packing (1), (2) or (3), clean the part(s) with water and finger scouring. Check that the rubber packings (1), (2) and (3) are not deformed, cracked or swollen. Check that the rubber packings (3) and (4) are not stuck together. Apply engine coolant to the rubber packings (2) and (3) before using the radiator cap tester. When using the radiator cap tester, tilt it upward 30° or more. Pump the radiator cap tester several times, and check the maximum pressure*1. *1 Radiator Cap Sub-assembly *a Radiator Cap Tester *b 30° or more Pumping Speed 1 pump per second *1: Even if the radiator cap sub-assembly cannot maintain the maximum pressure, it is not a defect. Judgment Criteria Item Specified Condition Standard value (for brand-new cap) 93 to 123 kPa (0.9 to 1.3 kgf/cm 2 , 13.5 to 18.0 psi) Minimum standard value (for used cap) 79 kPa (0.8 kgf/cm 2 , 11.5 psi) If the maximum pressure is less than the specified pressure for the minimum standard value, replace the radiator cap sub-assembly.

Scheme 21

Scheme 21: PROCEDURE
Scheme 21: PROCEDURE

Scheme 22

Scheme 22
Scheme 22

Scheme 23

Scheme 23
Scheme 23
  1. REMOVE COOL AIR INTAKE DUCT SEAL Refer to «PROCEDURE - Step 1»(ref-665772-S07495103672014102400000)
  2. REMOVE MILLIMETER WAVE RADAR SENSOR ASSEMBLY (w/ Dynamic Radar Cruise Control System) Refer to «REMOVAL [04/2013 - ]»(ref-665556-S24004513992014102400000)
  3. REMOVE V-BANK COVER SUB-ASSEMBLY Refer to «PROCEDURE - Step 3»(ref-665703-S21356895402014102400000)
  4. REMOVE INLET NO. 1 AIR CLEANER Refer to «PROCEDURE - Step 20»(ref-665703-S21356895402014102400000)
  5. REMOVE ENGINE UNDER COVER
  6. DRAIN ENGINE COOLANT See step 4
  7. REMOVE HOOD LOCK RELEASE LEVER PROTECTOR Refer to «PROCEDURE - Step 6»(ref-665779-S03393346402014102400000)
  8. DISCONNECT HOOD LOCK CONTROL CABLE ASSEMBLY Disengage the 2 clamps and disconnect the hood lock control cable assembly from the upper radiator support sub-assembly.
  9. REMOVE HOOD LOCK ASSEMBLY Refer to «PROCEDURE - Step 7»(ref-665779-S03393346402014102400000)
  10. REMOVE RADIATOR RESERVE TANK ASSEMBLY Slide the clip and disconnect the radiator reserve tank hose from the water inlet. Disconnect the clamp and wire harness from the radiator reserve tank assembly. Disengage the 2 claws and remove the radiator reserve tank assembly from the fan shroud assembly.
  11. REMOVE NO. 1 RADIATOR HOSE Slide the 2 clips and remove the No. 1 radiator hose from the radiator assembly and water inlet.
  12. DISCONNECT NO. 2 RADIATOR HOSE Disengage the clamp and disconnect the No. 2 radiator hose from the radiator hose clamp. Remove the radiator hose clamp from the fan shroud assembly. Slide the clip and disconnect the No. 2 radiator hose from the radiator assembly.
  13. DISCONNECT ENGINE ROOM MAIN WIRE Disconnect the cooling fan ECU connector. Disengage the 7 clamps and disconnect the engine room main wire from the upper radiator support sub-assembly.
  14. REMOVE UPPER RADIATOR SUPPORT SUB-ASSEMBLY Disconnect the 2 horn connectors. Disengage the 6 clamps and disconnect the wire harness from the upper radiator support sub-assembly. Remove the 5 bolts and upper radiator support sub-assembly.
  15. SEPARATE COOLER CONDENSER ASSEMBLY Disengage the 2 claws. Disengage the 2 guides and separate the cooler condenser assembly from the radiator assembly. NOTE: Do not damage the cooler condenser assembly or radiator assembly when removing the cooler condenser assembly.
  16. REMOVE ENGINE ROOM ECU OUTLET DUCT Remove the engine room ECU outlet duct from the fan shroud assembly.
  17. REMOVE RADIATOR ASSEMBLY Remove the radiator assembly with the fan shroud assembly from the vehicle. NOTE: Do not apply excessive force to the condenser assembly or pipe when removing the radiator assembly. Disengage the 3 claws. Disengage the 3 guides and remove the fan shroud assembly from the radiator assembly. NOTE: Do not damage the radiator assembly when removing the fan shroud assembly.
  18. REMOVE RADIATOR SUPPORT CUSHION Remove the 2 radiator support cushions from the radiator assembly.
  19. REMOVE LOWER RADIATOR SUPPORT Remove the 2 lower radiator supports from the radiator assembly.
  1. INSTALL LOWER RADIATOR SUPPORT Install the 2 lower radiator supports to the radiator assembly.
  2. INSTALL RADIATOR SUPPORT CUSHION Install the 2 radiator support cushions to the radiator assembly.
  3. INSTALL RADIATOR ASSEMBLY Engage the 3 guides. Engage the 3 claws and install the fan shroud assembly to the radiator assembly. NOTE: Do not damage the radiator assembly when installing the fan shroud assembly. Install the radiator assembly with the fan assembly to the vehicle. NOTE: Do not apply excessive force to the condenser assembly or pipe when installing the radiator assembly.
  4. INSTALL ENGINE ROOM ECU OUTLET DUCT Install the engine room ECU outlet duct to the fan shroud assembly.
  5. CONNECT COOLER CONDENSER ASSEMBLY Engage the 2 guides. Engage the 2 claws and connect the cooler condenser assembly to the radiator assembly. NOTE: Do not damage the cooler condenser assembly or radiator assembly when installing the cooler condenser assembly.
  6. INSTALL UPPER RADIATOR SUPPORT SUB-ASSEMBLY Install the upper radiator support sub-assembly with the 5 bolts. Torque: 8.0 N*m (82 kgf*cm, 71 in.*lbf) Engage the 6 clamps and connect the wire harness to the upper radiator support sub-assembly. Connect the 2 horn connectors.
  7. CONNECT ENGINE ROOM MAIN WIRE Connect the cooling fan ECU connector. Engage the 7 clamps and connect the engine room main wire from the upper radiator support sub-assembly.
  8. CONNECT NO. 2 RADIATOR HOSE Connect the No. 2 radiator hose to the radiator assembly and slide the clip to secure it. Install a new radiator hose clamp to the fan shroud assembly. Engage the clamp and connect the No. 2 radiator hose to the radiator hose clamp.
  9. INSTALL NO. 1 RADIATOR HOSE Install the No. 1 radiator hose to the radiator assembly and water inlet and slide the 2 clips to secure them.
  10. INSTALL RADIATOR RESERVE TANK ASSEMBLY Engage the 2 claws and install the radiator reserve tank assembly to the fan shroud assembly. Connect the clamp and wire harness to the radiator reserve tank assembly. Connect the radiator reserve tank hose to the water inlet and slide the clip to secure it.
  11. INSTALL HOOD LOCK ASSEMBLY Refer to «PROCEDURE - Step 3»(ref-665779-S31273357462014102400000)
  12. CONNECT HOOD LOCK CONTROL CABLE ASSEMBLY Engage the 2 clamps and connect the hood lock control cable assembly to the upper radiator support sub-assembly.
  13. INSTALL HOOD LOCK RELEASE LEVER PROTECTOR Refer to «PROCEDURE - Step 4»(ref-665779-S31273357462014102400000)
  14. INSTALL INLET NO. 1 AIR CLEANER Refer to «PROCEDURE - Step 74»(ref-665703-S03876486602014102400000)
  15. ADD ENGINE COOLANT See step 5
  16. INSPECT FOR COOLANT LEAK Refer to «PROCEDURE - Step 1»(ref-665770-S12066795872014102400000)
  17. INSTALL ENGINE UNDER COVER
  18. INSTALL V-BANK COVER SUB-ASSEMBLY Refer to «PROCEDURE - Step 104»(ref-665703-S03876486602014102400000)
  19. INSTALL MILLIMETER WAVE RADAR SENSOR ASSEMBLY (w/ Dynamic Radar Cruise Control System) Refer to «INSTALLATION [04/2013 - ]»(ref-665556-S33848085632014102400000)
  20. INSTALL COOL AIR INTAKE DUCT SEAL Refer to «PROCEDURE - Step 3»(ref-665772-S23921011662014102400000)
  1. INSPECT FAN RELAY Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition 3 - 5 Battery voltage not applied between terminals 1 and 2 10 kohms or higher 3 - 5 Battery voltage applied between terminals 1 and 2 Below 1 ohms If the result is not as specified, replace the fan relay.

More articles — Engine Cooling System (Service Information)