Procedure B

1. Turn ignition switch OFF.
2. Disconnect cooling fan motor-1 harness connector and cooling fan motor-2 harness connector.
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, 38, 60 and ground. Refer to wiring diagram.

   Continuity should exist. 

5. Also check harness for short to ground and short to power.
   Fig 1: Disconnecting Cooling Fan Motor-1 And 2 Harness Connector

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

1. OK: GO TO  3.
2. 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 cooling fan motors-1, 2 and ground
• Harness for open or short between IPDM E/R and ground

1. : Repair open circuit or short to ground or short to power in harness connectors.

Refer to "Component Inspection ".

OK or NG 

1. OK: GO TO 4.
2. NG: Replace cooling fan motors.

Perform "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT ".

OK or NG 

1. OK: Replace IPDM E/R. Refer to "IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM) ".
2. NG: Repair or replace harness connectors.