Procedure B

1. Turn ignition switch OFF.
2. Disconnect cooling fan motor-1 harness connector and cooling fan motor-2 harness connector.
   Fig 1: Identifying Cooling Fan Motor

   Courtesy of NISSAN MOTOR CO., U.S.A.
3. Disconnect all IPDM E/R harness connectors.
4. Check harness continuity between the following; cooling fan motor-1 terminal 1 and IPDM E/R terminal 8, cooling fan motor-1 terminal 4 and IPDM E/R terminal 9, IPDM E/R terminal 14 and ground, Refer to WIRING DIAGRAM .

   Continuity should exist  .

5. Also check harness connector for short to ground or short to power.
6. Check harness continuity between the following; cooling fan motor-2 terminal 1 and IPDM E/R terminal 13, cooling fan motor-2 terminal 4 and IPDM E/R terminal 12, Refer to WIRING DIAGRAM .

   Continuity should exist  .

7. Also check harness for short to ground and short to power.

OK or NG 

OK: GO TO  3.

NG: GO TO 2.

Check the following.

• Harness for open or short between cooling fan motors-1, 2 and IPDM E/R
• Harness for open or short between IPDM E/R and ground

  : 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 4.

NG: Replace malfunctioning cooling fan motors.

Perform "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT ".

OK or NG 

OK: Replace IPDM E/R. Refer to "IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM) ".

NG: Repair or replace harness or connectors.