Overall Function Check

Use this procedure to check the overall function of the cooling fan. During this check, a DTC might not be confirmed.

WARNING: Never remove the radiator cap and/or reservoir tank cap when the engine is hot. Serious burns could be caused by high pressure fluid escaping from the radiator and/or reservoir tank.
Wrap a thick cloth around cap. Carefully remove the cap by turning it a quarter turn to allow built-up pressure to escape. Then turn the cap all the way off.

WITH CONSULT-III

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 "DIAGNOSIS PROCEDURE ".
Confirm whether customer filled the coolant or not. If customer filled the coolant, skip the following steps and go to "DIAGNOSIS PROCEDURE ".
Turn ignition switch ON.

Fig 1: Identifying Coolant Level In Reservoir Tank
Courtesy of NISSAN MOTOR CO., U.S.A.
Perform "COOLING FAN" in "ACTIVE TEST" mode with CONSULT-III.
If the results are NG, go to "DIAGNOSIS PROCEDURE ".

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 "DIAGNOSIS PROCEDURE ".
Confirm whether customer filled the coolant or not. If customer filled the coolant, skip the following steps and go to "DIAGNOSIS PROCEDURE ".

Fig 2: Identifying Coolant Level In Reservoir Tank
Courtesy of NISSAN MOTOR CO., U.S.A.
Disconnect engine coolant temperature sensor harness connector.
Connect 150Ω resistor to engine coolant temperature sensor harness connector.
Start engine and make sure that cooling fan operates.
CAUTION: Be careful not to overheat engine.
If NG, go to "DIAGNOSIS PROCEDURE ".

Fig 3: Connecting 150 Resistor To Engine Coolant Temperature Sensor Harness Connector
Courtesy of NISSAN MOTOR CO., U.S.A.