With GST

Check the coolant level in the reservoir tank and radiator. Allow engine to cool before checking coolant level. If the coolant level in the reservoir tank and/or radiator is below the proper range, skip the following steps and go to "DIAGNOSTIC PROCEDURE ".
Confirm whether customer filled the coolant or not. If customer filled the coolant, skip the following steps and go to "DIAGNOSTIC PROCEDURE ".
Perform IPDM E/R auto active test and check cooling fan motor operation, refer to "AUTO ACTIVE TEST ".
If NG, go to "DIAGNOSTIC PROCEDURE ".

Fig 1: Identifying Coolant Level In Reservoir Tank
Courtesy of NISSAN NORTH AMERICA, INC.