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 ".
Start engine.
Be careful not to overheat engine.
Turn air conditioner switch ON.
Turn blower fan switch ON.

Fig 1: Identifying Coolant Level In Reservoir Tank
Courtesy of NISSAN MOTOR CO., U.S.A.
Make sure that cooling fan operates at low speed.
If NG, go to "DIAGNOSTIC PROCEDURE ".

If OK, go to the following step.
Turn ignition switch OFF.
Disconnect engine coolant temperature sensor harness connector.
Connect 200Ω resistor to engine coolant temperature sensor harness connector.
Restart engine.
Turn air conditioner switch and blower fan switch ON.

Fig 2: Identifying Cooling Fan And Its Operating Conditions
Courtesy of NISSAN MOTOR CO., U.S.A.
Make sure that cooling fan operates at higher speed than low speed.
1. Be careful not to overheat engine.
If NG, go to "DIAGNOSTIC PROCEDURE ".
If OK, go to the following step.
Turn ignition switch OFF.
Turn air conditioner switch and blower fan switch OFF.
Disconnect 200Ω resistor then connect 150Ω resistor to engine coolant temperature sensor harness connector.

Fig 3: Connecting 200Ω Resistor To Engine Coolant Temperature Sensor Harness Connector
Courtesy of NISSAN MOTOR CO., U.S.A.
Restart engine and make sure that cooling fan-2 operates at higher speed than the speed at step 12.
1. Be careful not to overheat engine.
If NG, go to "DIAGNOSTIC PROCEDURE ".

Fig 4: Connecting 150Ω Resistor To Engine Coolant Temperature Sensor Harness Connector
Courtesy of NISSAN MOTOR CO., U.S.A.