Procedure A

1. Turn ignition switch OFF.
2. Disconnect IPDM E/R harness connectors E120.
3. Check voltage between IPDM E/R terminal 22 and ground with CONSULT-II or tester.
   • Voltage: Battery voltage 
   Fig 1: Checking Voltage Between IPDM E/R Connector Terminal 22 And Ground

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

OK or NG 

• OK: GO TO  3.
• NG: GO TO 2.

Check the following.

• 40A fusible link
• Harness for open or short between IPDM E/R and battery
  • Repair open circuit or short to ground in harness or connectors.

1. Disconnect IPDM E/R harness connectors E120, E124.
2. Disconnect cooling fan motor harness connector.
3. Check harness continuity between the following; cooling fan motor terminal 1 and IPDM E/R terminal 20, cooling fan motor terminal 2 and IPDM E/R terminal 24. Refer to WIRING DIAGRAM .
   • Continuity should exist. 
   Fig 2: Locating Cooling Fan Motor Harness Connector

   Courtesy of NISSAN MOTOR CO., U.S.A.
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. Check harness continuity between the following;

   cooling fan motor terminal 3 and ground,

   cooling fan motor terminal 4 and ground.

   Refer to WIRING DIAGRAM .

   • Continuity should exist. 
2. Also check harness for short to power.

OK or NG 

• OK: GO TO 5.
• NG: Repair open circuit or short to power in harness or connectors.

Refer to COMPONENT INSPECTION .

OK or NG 

• OK: GO TO 6.
• NG: Replace 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 connector.