Engine Cooling System (service Information) Toyota Prius C I

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1. DRAIN COOLANT (for Engine) NOTE: Do not remove the water filler cap sub-assembly, engine drain cock plug or radiator drain cock plug while the engine and radiator are still hot. Pressurized, hot engine coolant and steam may be released and cause serious burns. Loosen the radiator drain cock plug. Remove the water filler cap sub-assembly and drain the coolant. TEXT IN ILLUSTRATION *1 Water Filler Cap Sub-assembly *2 Radiator Drain Cock Plug *3 Engine Drain Cock Plug *4 Water Filler HINT: Collect the coolant in a container and dispose of it according to the regulations in your area. Remove the stop ring. Connect the hose to the engine drain cock plug. TEXT IN ILLUSTRATION *1 Hose Pull out the engine drain cock plug and drain the coolant.
2. ADD COOLANT (for Engine) Insert the engine drain cock plug. TEXT IN ILLUSTRATION *1 Hose Disconnect the hose from the engine drain cock plug. Install the stop ring. Tighten the radiator drain cock plug by hand. Slowly fill the radiator with TOYOTA Super Long Life Coolant (SLLC) from the water filler. (Coolant level should be within 20 mm (0.787 in.) from the filler tube end.) TEXT IN ILLUSTRATION *a Filler Tube End *b Coolant Level *c 20 mm Standard Capacity 5.2 liters (5.5 US qts, 4.6 lmp. qts) NOTE: Never use water as a substitute for engine coolant. HINT: TOYOTA vehicles are filled with TOYOTA SLLC at the factory. In order to avoid damage to the engine cooling system and other technical problems, only use TOYOTA SLLC or similar high quality ethylene glycol based non-silicate, non-amine, non-nitrite, non-borate coolant with long-life hybrid organic acid technology (coolant with long-life hybrid organic acid technology is a combination of low phosphates and organic acids). Remove the reserve tank cap. Slowly pour coolant into the radiator reserve tank assembly until it reaches the full line. TEXT IN ILLUSTRATION *a Full Line *b Low Line Squeeze the No. 1 and No. 2 radiator hoses several times by hand, and then check the level of the coolant. If the coolant level is low, add coolant. Install the water filler cap sub-assembly and reserve tank cap. Put the engine in inspection mode. Refer to «INSPECTION MODE PROCEDURE»(/toyota/prius-c/i-2011-2015/remont/hoistjack/#introduction) . Bleed air from the cooling system. NOTE: Before starting the engine, turn the A/C switch off. Adjust the heater control to the maximum hot setting. Adjust the blower speed to the low setting. Warm up the engine until the thermostat opens. While the thermostat is open, circulate the coolant for several minutes. HINT: The thermostat open timing can be confirmed by squeezing the No. 2 radiator hose by hand, and sensing vibrations when the engine coolant starts to flow inside the hose. Squeeze the No. 1 and No. 2 radiator hoses several times by hand to bleed air. WARNING: When squeezing the radiator hoses: Wear protective gloves. Be careful as the radiator hoses are hot. Keep your hands away from the cooling fan. NOTE: Make sure that the radiator reserve tank assembly still has some coolant in it. If the coolant temperature gauge indicates an excessive temperature, turn off the engine and let it cool. If there is not enough coolant, the engine may overheat or be seriously damaged. If the radiator reserve tank assembly does not have enough coolant, perform the following: 1) stop the engine, 2) wait until the coolant has cooled down, and 3) add coolant until the reserve tank assembly is filled to the full line. Stop the engine and wait until the engine coolant cools down. Add engine coolant to the full line on the radiator reserve tank assembly.
3. INSPECT FOR COOLANT LEAK (for Engine) . Refer to «ON-VEHICLE INSPECTION - Step 1»(/toyota/prius-c/i-2011-2015/remont/cooling-fan/#engine-cooling-system-inspection)

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1. DRAIN COOLANT (for Engine) See step 1
2. REMOVE AIR CLEANER CAP SUB-ASSEMBLY . Refer to «REMOVAL - Step 2»(/toyota/prius-c/i-2011-2015/remont/engine-control-systems/#engine-control-system-service-information)
3. REMOVE AIR CLEANER CASE SUB-ASSEMBLY . Refer to «REMOVAL - Step 2»(/toyota/prius-c/i-2011-2015/remont/auxiliary-emission-control-systems/#emission-control-system-service-information)
4. REMOVE ENGINE WATER PUMP ASSEMBLY Disconnect the connector. Disconnect the 2 clamps. Remove the 5 bolts and engine water pump assembly. Remove the gasket from the engine water pump assembly.

INSTALLATION

1. INSTALL ENGINE WATER PUMP ASSEMBLY Install a new gasket. HINT: Be sure to clean the contact surfaces. Install the engine water pump assembly with the 5 bolts. Torque: 21 N*m (214 kgf*cm, 15 ft.*lbf) Connect the 2 clamps. Connect the connector. NOTE: Do not start the engine water pump assembly before adding coolant.
2. INSTALL AIR CLEANER CASE SUB-ASSEMBLY . Refer to «INSTALLATION - Step 2»(/toyota/prius-c/i-2011-2015/remont/auxiliary-emission-control-systems/#emission-control-system-service-information)
3. INSTALL AIR CLEANER CAP SUB-ASSEMBLY . Refer to «INSTALLATION - Step 2»(/toyota/prius-c/i-2011-2015/remont/engine-control-systems/#engine-control-system-service-information)
4. ADD COOLANT (for Engine) See step 2
5. INSPECT FOR COOLANT LEAK (for Engine) . Refer to «ON-VEHICLE INSPECTION - Step 1»(/toyota/prius-c/i-2011-2015/remont/cooling-fan/#engine-cooling-system-inspection)

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1. REMOVE WINDSHIELD WIPER MOTOR AND LINK ASSEMBLY Refer to «REMOVAL»(/toyota/prius-c/i-2011-2015/remont/wiperwasher-systems/#wiper-system-washer-system-service-information)
2. REMOVE INNER COWL TOP TO COWL BRACE . Refer to «REMOVAL - Step 4»(/toyota/prius-c/i-2011-2015/remont/mechanical-hydraulic/#brake-system-hydraulic-service-information)
3. REMOVE FRONT AIR SHUTTER SEAL . Refer to «REMOVAL - Step 5»(/toyota/prius-c/i-2011-2015/remont/mechanical-hydraulic/#brake-system-hydraulic-service-information)
4. REMOVE FRONT NO. 1 VENTILATOR SEAL . Refer to «REMOVAL - Step 6»(/toyota/prius-c/i-2011-2015/remont/mechanical-hydraulic/#brake-system-hydraulic-service-information)
5. REMOVE OUTER COWL TOP PANEL SUB-ASSEMBLY . Refer to «REMOVAL - Step 7»(/toyota/prius-c/i-2011-2015/remont/mechanical-hydraulic/#brake-system-hydraulic-service-information)
6. DRAIN COOLANT (for Engine) See step 1
7. REMOVE ENGINE COOLANT TEMPERATURE SENSOR Disconnect the connector. Using a union nut wrench (19 mm), remove the engine coolant temperature sensor. NOTE: Do not apply any excessive force to the heater pipe when removing the engine coolant temperature sensor.

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1. INSPECT ENGINE COOLANT TEMPERATURE SENSOR Measure the resistance according to the value(s) in the table below. Standard Resistance Condition Specified Condition Approximately 20°C (68°F) 2.32 to 2.59 kohms Approximately 80°C (176°F) 0.310 to 0.326 kohms NOTE: When checking the engine coolant temperature sensor in water, keep the terminals dry. After the check, dry the engine coolant temperature sensor. If the resistance is not as specified, replace the engine coolant temperature sensor.

1. INSTALL ENGINE COOLANT TEMPERATURE SENSOR Using a union nut wrench (19 mm), install the engine coolant temperature sensor. Torque: 20 N*m (200 kgf*cm, 14 ft.*lbf) NOTE: Do not apply any excessive force to the heater pipe when installing the engine coolant temperature sensor. Connect the connector.
2. ADD COOLANT (for Engine) See step 2
3. INSPECT FOR COOLANT LEAK (for Engine) . Refer to «ON-VEHICLE INSPECTION - Step 1»(/toyota/prius-c/i-2011-2015/remont/cooling-fan/#engine-cooling-system-inspection)
4. INSTALL OUTER COWL TOP PANEL SUB-ASSEMBLY . Refer to «INSTALLATION - Step 16»(/toyota/prius-c/i-2011-2015/remont/mechanical-hydraulic/#brake-system-hydraulic-service-information)
5. INSTALL FRONT NO. 1 VENTILATOR SEAL . Refer to «INSTALLATION - Step 17»(/toyota/prius-c/i-2011-2015/remont/mechanical-hydraulic/#brake-system-hydraulic-service-information)
6. INSTALL FRONT AIR SHUTTER SEAL . Refer to «INSTALLATION - Step 18»(/toyota/prius-c/i-2011-2015/remont/mechanical-hydraulic/#brake-system-hydraulic-service-information)
7. INSTALL INNER COWL TOP TO COWL BRACE . Refer to «INSTALLATION - Step 19»(/toyota/prius-c/i-2011-2015/remont/mechanical-hydraulic/#brake-system-hydraulic-service-information)
8. INSTALL WINDSHIELD WIPER MOTOR AND LINK ASSEMBLY Refer to «INSTALLATION»(/toyota/prius-c/i-2011-2015/remont/wiperwasher-systems/#wiper-system-washer-system-service-information__installation)

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1. DRAIN COOLANT (for Engine) See step 1
2. REMOVE AIR CLEANER CAP SUB-ASSEMBLY . Refer to «REMOVAL - Step 2»(/toyota/prius-c/i-2011-2015/remont/engine-control-systems/#engine-control-system-service-information)
3. REMOVE AIR CLEANER CASE SUB-ASSEMBLY . Refer to «REMOVAL - Step 2»(/toyota/prius-c/i-2011-2015/remont/auxiliary-emission-control-systems/#emission-control-system-service-information)
4. DISCONNECT NO. 2 RADIATOR HOSE . Refer to «REMOVAL - Step 22»(/toyota/prius-c/i-2011-2015/remont/mechanical/#engine-mechanical-service-information)
5. REMOVE WATER INLET WITH THERMOSTAT SUB-ASSEMBLY Disconnect the water inlet hose and No. 3 water by-pass hose. TEXT IN ILLUSTRATION *1 Water Inlet Hose *2 No. 3 Water By-pass Hose NOTE: Do not apply force to the water inlet with thermostat sub-assembly when disconnecting the No. 3 water by-pass hose. Do not damage the water inlet with thermostat sub-assembly. Remove the 2 bolts and water inlet with thermostat sub-assembly. Remove the gasket from the water inlet with thermostat sub-assembly.

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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 the valve opening temperature of the water inlet with thermostat sub-assembly. Valve opening temperature 80 to 84°C (176 to 183°F) HINT: If the valve opening temperature is not as specified, replace the water inlet with thermostat sub-assembly. Refer to «REMOVAL»(/toyota/prius-c/i-2011-2015/remont/cooling-fan/#engine-cooling-system-service-information) . Check the valve lift. TEXT IN ILLUSTRATION *a Valve Lift Valve lift 8.0 mm (0.315 in.) or more at 95°C (203°F) HINT: If the valve lift is not as specified, replace the water inlet with thermostat sub-assembly. Refer to «REMOVAL»(/toyota/prius-c/i-2011-2015/remont/cooling-fan/#engine-cooling-system-service-information) . Check that the valve is fully closed when the water inlet with thermostat sub-assembly is at low temperatures (below 77°C (171°F)). HINT: If it is not fully closed, replace the water inlet with thermostat sub-assembly. Refer to «REMOVAL»(/toyota/prius-c/i-2011-2015/remont/cooling-fan/#engine-cooling-system-service-information) .

1. INSTALL WATER INLET WITH THERMOSTAT SUB-ASSEMBLY Install a new gasket on the water inlet with thermostat sub-assembly. Install the water inlet with thermostat sub-assembly with the 2 bolts. Torque: 10 N*m (102 kgf*cm, 7 ft.*lbf) Connect the water inlet hose and No. 3 water by-pass hose.
2. CONNECT NO. 2 RADIATOR HOSE . Refer to «INSTALLATION - Step 25»(/toyota/prius-c/i-2011-2015/remont/mechanical/#engine-mechanical-service-information)
3. INSTALL AIR CLEANER CASE SUB-ASSEMBLY . Refer to «INSTALLATION - Step 2»(/toyota/prius-c/i-2011-2015/remont/auxiliary-emission-control-systems/#emission-control-system-service-information)
4. INSTALL AIR CLEANER CAP SUB-ASSEMBLY . Refer to «INSTALLATION - Step 2»(/toyota/prius-c/i-2011-2015/remont/engine-control-systems/#engine-control-system-service-information)
5. ADD COOLANT (for Engine) See step 2
6. INSPECT FOR COOLANT LEAK (for Engine) . Refer to «ON-VEHICLE INSPECTION - Step 1»(/toyota/prius-c/i-2011-2015/remont/cooling-fan/#engine-cooling-system-inspection)

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1. REMOVE FRONT EXHAUST PIPE ASSEMBLY Refer to «REMOVAL»(/toyota/prius-c/i-2011-2015/remont/exhaust/#intake-system-exhaust-system-service-information)
2. DRAIN COOLANT (for Engine) See step 1
3. REMOVE EXHAUST PIPE GAS CONTROL ACTUATOR SUB-ASSEMBLY Remove the 5 bolts, No. 1 exhaust pipe heat insulator and exhaust pipe gas control actuator sub-assembly with the exhaust by-pass pipe installed. NOTE: When removing the exhaust pipe gas control actuator sub-assembly, use caution because coolant may spill out from the exhaust heat recirculation system. Do not apply any excessive force to the exhaust by-pass pipe when removing the exhaust pipe gas control actuator sub-assembly. Remove the exhaust by-pass pipe from the exhaust pipe gas control actuator sub-assembly.

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1. INSTALL EXHAUST PIPE GAS CONTROL ACTUATOR SUB-ASSEMBLY Install the exhaust by-pass pipe to the exhaust pipe gas control actuator sub-assembly. NOTE: When reusing the exhaust by-pass pipe, inspect the O-ring. If the O-ring has scratches or cuts, replace the exhaust by-pass pipe. Install the No. 1 exhaust pipe heat insulator, exhaust pipe gas control actuator sub-assembly and exhaust by-pass pipe with the 5 bolts. Bolt A Torque: 5.0 N*m (51 kgf*cm, 44 in.*lbf) Bolt B Torque: 8.5 N*m (87 kgf*cm, 75 in.*lbf) NOTE: Do not apply any excessive force to the exhaust by-pass pipe when installing the exhaust pipe gas control actuator sub-assembly. When replacing the exhaust pipe gas control actuator sub-assembly with a new one: Remove the spacer from the new exhaust pipe gas control actuator sub-assembly. TEXT IN ILLUSTRATION *1 Spacer HINT: The spacer is provided with a new exhaust pipe gas control actuator sub-assembly.
2. INSTALL FRONT EXHAUST PIPE ASSEMBLY Refer to «INSTALLATION»(/toyota/prius-c/i-2011-2015/remont/exhaust/#intake-system-exhaust-system-service-information)
3. ADD COOLANT (for Engine) See step 2
4. INSPECT FOR COOLANT LEAK (for Engine) . Refer to «ON-VEHICLE INSPECTION - Step 1»(/toyota/prius-c/i-2011-2015/remont/cooling-fan/#engine-cooling-system-inspection)

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1. INSPECT COOLING FAN MOTOR Check that the motor operates smoothly when the auxiliary battery is connected to the cooling fan motor connector. TEXT IN ILLUSTRATION *a Component without harness connected (Cooling Fan Motor) Clamp the 400 A probe of an ammeter over the (+) wire of the cooling fan motor. Measure the current while the motor is operating. Standard Current Item Condition Specified Condition Cooling fan motor 20°C (68°F) at 12 V 12.2 to 15.7 A If the result is not as specified, replace the cooling fan motor.

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1. REMOVE RADIATOR ASSEMBLY Refer to «REMOVAL»(/toyota/prius-c/i-2011-2015/remont/cooling-fan/#engine-cooling-system-service-information)
2. REMOVE FAN Remove the nut and fan.
3. REMOVE COOLING FAN MOTOR Disconnect the 2 clamps and connector. Remove the 3 screws and cooling fan motor.

1. INSTALL COOLING FAN MOTOR Install the cooling fan motor with the 3 screws. Torque: 3.9 N*m (40 kgf*cm, 35 in.*lbf) Connect the 2 clamps and connector.
2. INSTALL FAN Install the fan with the nut. Torque: 6.3 N*m (64 kgf*cm, 56 in.*lbf)
3. INSTALL RADIATOR ASSEMBLY Refer to «INSTALLATION»(/toyota/prius-c/i-2011-2015/remont/cooling-fan/#engine-cooling-system-service-information)

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1. INSPECT COOLING FAN ECU Put the vehicle in the following conditions: The ignition switch is off. The coolant temperature is less than 92°C (198°F). The auxiliary battery voltage is between 11 to 14 V. The A/C switch is off. Connect the pickup of a clamp-on ammeter over one of the two wires for the cooling fan motor. Turn the ignition switch to ON (IG) and wait for approximately 10 seconds. Check that the fan stops. Turn the ignition switch to ON (READY). Check that the fan stops with the engine idling. HINT: Make sure that the radiator 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 Specified Condition Cooling fan motor 12.2 to 15.7 A HINT: The 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 Specified Condition Cooling fan motor 12.2 to 15.7 A Put the engine in inspection mode. Refer to «INSPECTION MODE PROCEDURE»(/toyota/prius-c/i-2011-2015/remont/hoistjack/#introduction) . After the engine is warmed up, check that the fan operates as shown in the illustration. HINT: The coolant temperature at which the fan starts operating is approximately 96°C (205°F). This system can also be checked using the Techstream. Select the following menu items: Powertrain / Engine and ECT / Data List / Coolant Temp.

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1. CHECK WATER FILLER CAP SUB-ASSEMBLY Measure the valve opening pressure. If there are water stains or foreign matter on rubber packings 1, 2 or 3, clean the part(s) with water and finger scouring. Check that rubber packings 1, 2 and 3 are not deformed, cracked or swollen. Check that 3 and 4 are not stuck together. Apply engine coolant to rubber packings 2 and 3 before using the radiator cap tester. When using the cap tester, tilt it upward 30° or more. Pump the cap tester several times, and check the maximum pressure *1. TEXT IN ILLUSTRATION *1 Radiator Cap Tester *2 Water Filler Cap Sub-assembly *a 30° or more Pumping speed 1 pump every second *1: Even if the cap cannot maintain the maximum pressure, it is not a defect. Judgment Criterion Item Specified Condition Standard value (for brand-new cap) 93.3 to 122.7 kPa (0.95 to 1.25 kgf/cm 2 , 13.5 to 17.8 psi) Minimum standard value (for used cap) 78.5 kPa (0.8 kgf/cm 2 , 11.4 psi) If the maximum pressure is less than the specified pressure for the minimum standard value, replace the water filler cap sub-assembly.

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1. PRECAUTION NOTE: After turning the ignition switch off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) auxiliary battery terminal notice before proceeding with work. Refer to «PRECAUTION»(/toyota/prius-c/i-2011-2015/remont/hoistjack/#introduction) .
2. REMOVE FRONT FLOOR COVER RH . Refer to «REMOVAL - Step 3»(/toyota/prius-c/i-2011-2015/remont/seats/#seats-service-information)
3. DISCONNECT CABLE FROM NEGATIVE AUXILIARY BATTERY TERMINAL NOTE: When disconnecting the cable, some systems need to be initialized after the cable is reconnected. Refer to «INITIALIZATION»(/toyota/prius-c/i-2011-2015/remont/hoistjack/#introduction__initialization) .
4. REMOVE ENGINE UNDER COVER LH
5. REMOVE ENGINE UNDER COVER RH
6. DRAIN COOLANT (for Inverter) . Refer to «REPLACEMENT - Step 1»(/toyota/prius-c/i-2011-2015/remont/engine-control-systems/#hybrid-battery-control-system-service-information)
7. DRAIN COOLANT (for Engine) See step 1
8. REMOVE FRONT BUMPER ASSEMBLY Refer to «REMOVAL»(/toyota/prius-c/i-2011-2015/remont/exteriorinterior-trim/#exterior-panels-trim-service-information__removal)
9. REMOVE RADIATOR SUPPORT OPENING COVER . Refer to «DISASSEMBLY - Step 16»(/toyota/prius-c/i-2011-2015/remont/exteriorinterior-trim/#exterior-panels-trim-service-information)
10. REMOVE AIR CLEANER CAP SUB-ASSEMBLY . Refer to «REMOVAL - Step 2»(/toyota/prius-c/i-2011-2015/remont/engine-control-systems/#engine-control-system-service-information)
11. REMOVE AIR CLEANER CASE SUB-ASSEMBLY . Refer to «REMOVAL - Step 2»(/toyota/prius-c/i-2011-2015/remont/auxiliary-emission-control-systems/#emission-control-system-service-information)
12. REMOVE HOOD LOCK ASSEMBLY . Refer to «REMOVAL - Step 6»(/toyota/prius-c/i-2011-2015/remont/exterior-body-panels/#door-hood-service-information)
13. DISCONNECT NO. 1 RADIATOR HOSE Disconnect the reserve tank hose. Disconnect the No. 1 radiator hose.
14. DISCONNECT NO. 2 RADIATOR HOSE Disconnect the No. 2 radiator hose.
15. DISCONNECT OUTLET NO. 1 HYBRID WATER PUMP HOSE Disconnect the 3 clamps and outlet No. 1 hybrid water pump hose.
16. DISCONNECT NO. 1 INVERTER COOLING HOSE ASSEMBLY Disconnect the 3 clamps and No. 1 inverter cooling hose assembly.
17. REMOVE UPPER RADIATOR SUPPORT SUB-ASSEMBLY Disconnect the horn connector. Disconnect the 3 clamps and cooling fan ECU connector. Disconnect the clamp of hood lock control cable. Remove the 5 bolts and upper radiator support sub-assembly. Remove the 2 radiator support cushions.
18. REMOVE NO. 2 FAN SHROUD Remove the 2 bolts, 2 claws and No. 2 fan shroud.
19. REMOVE RADIATOR ASSEMBLY Remove the radiator assembly with the fan shroud. NOTE: Do not apply any excessive force to the cooler condenser assembly or pipe when removing the radiator assembly. Remove the 2 lower radiator supports. Remove the 2 bolts and No. 3 radiator hose. Remove the 2 claws and radiator assembly.

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1. INSTALL RADIATOR ASSEMBLY Install the radiator assembly with the 2 claws. Install the No. 3 radiator hose with the 2 bolts. Torque: 7.5 N*m (76 kgf*cm, 66 in.*lbf) Install the 2 lower radiator supports. Install the radiator assembly with the fan shroud. NOTE: Do not apply any excessive force to the cooler condenser assembly or pipe when installing the radiator assembly.
2. INSTALL NO. 2 FAN SHROUD Install the No. 2 fan shroud with the 2 bolts and 2 claws. Torque: 7.0 N*m (71 kgf*cm, 62 in.*lbf)
3. INSTALL UPPER RADIATOR SUPPORT SUB-ASSEMBLY Install the 2 radiator support cushions. Temporarily install the upper radiator support sub-assembly with the 5 bolts. Fully tighten the bolt (A). Torque: 5.5 N*m (56 kgf*cm, 49 in.*lbf) Fully tighten the bolt (B). Torque: 5.5 N*m (56 kgf*cm, 49 in.*lbf) Fully tighten the bolt (C). Torque: 13 N*m (127 kgf*cm, 9 ft.*lbf) Connect the clamp of the hood lock control cable. Connect the cooling fan ECU connector and 3 clamps. Connect the horn connector.
4. CONNECT NO. 1 INVERTER COOLING HOSE ASSEMBLY Connect the No. 1 inverter cooling hose assembly and 3 clamps.
5. CONNECT OUTLET NO. 1 HYBRID WATER PUMP HOSE Connect the outlet No. 1 hybrid water pump hose and 3 clamps.
6. CONNECT NO. 2 RADIATOR HOSE Connect the No. 2 radiator hose.
7. CONNECT NO. 1 RADIATOR HOSE Connect the No. 1 radiator hose. Connect the reserve tank hose.
8. INSTALL HOOD LOCK ASSEMBLY . Refer to «INSTALLATION - Step 3»(/toyota/prius-c/i-2011-2015/remont/exterior-body-panels/#door-hood-service-information)
9. INSTALL AIR CLEANER CASE SUB-ASSEMBLY . Refer to «INSTALLATION - Step 2»(/toyota/prius-c/i-2011-2015/remont/auxiliary-emission-control-systems/#emission-control-system-service-information)
10. INSTALL AIR CLEANER CAP SUB-ASSEMBLY . Refer to «INSTALLATION - Step 2»(/toyota/prius-c/i-2011-2015/remont/engine-control-systems/#engine-control-system-service-information)
11. INSTALL RADIATOR SUPPORT OPENING COVER . Refer to «REASSEMBLY - Step 7»(/toyota/prius-c/i-2011-2015/remont/exteriorinterior-trim/#exterior-panels-trim-service-information)
12. INSTALL FRONT BUMPER ASSEMBLY Refer to «INSTALLATION»(/toyota/prius-c/i-2011-2015/remont/exteriorinterior-trim/#exterior-panels-trim-service-information__installation)
13. CONNECT CABLE TO NEGATIVE AUXILIARY BATTERY TERMINAL NOTE: When disconnecting the cable, some systems need to be initialized after the cable is reconnected. Refer to «INITIALIZATION»(/toyota/prius-c/i-2011-2015/remont/hoistjack/#introduction__initialization) .
14. INSTALL FRONT FLOOR COVER RH . Refer to «INSTALLATION - Step 7»(/toyota/prius-c/i-2011-2015/remont/seats/#seats-service-information)
15. ADD COOLANT (for Inverter) . Refer to «REPLACEMENT - Step 2»(/toyota/prius-c/i-2011-2015/remont/engine-control-systems/#hybrid-battery-control-system-service-information)
16. ADD COOLANT (for Engine) See step 2
17. INSPECT FOR COOLANT LEAK (for Inverter) . Refer to «ON-VEHICLE INSPECTION - Step 1»(/toyota/prius-c/i-2011-2015/remont/engine-control-systems/#hybrid-battery-control-system-service-information)
18. INSPECT FOR COOLANT LEAK (for Engine) . Refer to «ON-VEHICLE INSPECTION - Step 1»(/toyota/prius-c/i-2011-2015/remont/cooling-fan/#engine-cooling-system-inspection)
19. INSTALL ENGINE UNDER COVER RH
20. INSTALL ENGINE UNDER COVER LH

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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 Auxiliary battery voltage is not applied between terminals 1 and 2 10 kohms or higher 3 - 5 Auxiliary battery voltage is applied between terminals 1 and 2 Below 1 ohms If the result is not as specified, replace the relay.

See also:
• INSPECTION MODE PROCEDURE
• ON-VEHICLE INSPECTION - Step 1
• REMOVAL - Step 2
• REMOVAL - Step 2
• REMOVAL
• REMOVAL - Step 4
• INSTALLATION
• REMOVAL - Step 22
• REMOVAL
• REMOVAL - Step 3
• INITIALIZATION
• REPLACEMENT - Step 1
• REMOVAL
• DISASSEMBLY - Step 16
• REMOVAL - Step 6
• INSTALLATION
• REMOVAL