1F-2 Engine Cooling System:
Schematic and Routing Diagram
Coolant Circulation
S5JB0A1602001
While the engine is warmed up (thermostat closed), coolant circulates as follows.
When coolant is warmed up to normal temperature and the thermostat opens, coolant passes through the radiator
core to be cooled as follows.
11
10
3
7
4
9
8
6
5
2
12
1
I5JB0A161001-01
1. Radiator inlet hose
5. Thermostat
9. Heater core inlet hose
2. Radiator outlet hose
6. Water pump
10. Heater core outlet hose
3. Throttle body inlet hose
7. Throttle body
11. Heater core
4. Throttle body outlet hose
8. Engine
12. Radiator
11
10
3
7
4
9
8
6
5
2
12
1
I5JB0A161002-01
1. Radiator inlet hose
5. Thermostat
9. Heater core inlet hose
2. Radiator outlet hose
6. Water pump
10. Heater core outlet hose
3. Throttle body inlet hose
7. Throttle body
11. Heater core
4. Throttle body outlet hose
8. Engine
12. Radiator
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