Cooling System Circulation

While the engine is warmed up (thermostat closed), coolant circulates as follows.

Fig 1: Identifying Cooling System Circulation (Thermostat Closed)
Courtesy of SUZUKI OF AMERICA CORP.
When coolant is warmed up to normal temperature and the thermostat opens, coolant passes through the radiator core to be cooled as well as the above flow circuit.

Fig 2: Identifying Cooling System Circulation (Thermostat Open)
Courtesy of SUZUKI OF AMERICA CORP.