Procedure B

1. Turn ignition switch OFF.
2. Disconnect cooling fan relay-2.
3. Turn ignition switch ON.
4. Check voltage between cooling fan relay-2 terminals 1, 3 and ground with CONSULT-II or tester.

   Voltage: Battery voltage 

   • OK or NG 
   Fig 1: Checking Voltage Between Cooling Fan Relay-2 Terminals 1, 3, Ground

   Courtesy of NISSAN MOTOR CO., U.S.A.

• OK : GO TO  3.
• NG : GO TO 2.

Check the following.

• Fuse and fusible link box connectors E23, E25
• Fuse block (J/B) connector E103
• Harness for open or short between cooling fan relay-2 and fuse
• Harness for open or short between cooling fan relay-2 and battery
  • : Repair harness or connectors.

1. Turn ignition switch OFF.
2. Disconnect cooling fan motor-1 harness connector.
3. Check harness continuity between cooling fan relay-2 terminal 5 and cooling fan motor-1 terminal 2, cooling fan relay-2 terminal 6 and cooling fan motor-1 terminal 3, cooling fan relay-2 terminal 7 and ground.

   Refer to WIRING DIAGRAM .

   • Continuity should exist. 
4. Also check harness for short to ground and short to power.

OK or NG 

• OK : GO TO 4.
• NG : Repair open circuit or short to ground or short to power in harness or connectors.

1. Disconnect ECM harness connector.
2. Check harness continuity between ECM terminal 89 and cooling fan relay-2 terminal 2.

   Refer to WIRING DIAGRAM .

   • Continuity should exist. 
3. Also check harness for short to ground and short to power.

OK or NG 

• OK : GO TO  6.
• NG : GO TO 5.

Check the following.

• Harness connectors E9, F47
• Harness for open or short between cooling fan relay-2 and ECM
  • : Repair open circuit or short to ground or short to power in harness or connectors.

Refer to "COMPONENT INSPECTION ".

OK or NG 

• OK : GO TO 7.
• NG : Replace cooling fan relays.

Refer to "COMPONENT INSPECTION ".

OK or NG 

• OK : GO TO 8.
• NG : Replace cooling fan motors.

Perform "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT ".

• : INSPECTION END