Procedure A

1. Turn ignition switch OFF.
2. Disconnect IPDM E/R harness connector E120.
3. Check voltage between IPDM E/R terminal 22 and ground with CONSULT-II or tester.
   1. Voltage: Battery voltage 

OK or NG 

1. OK: GO TO  3.
2. NG: GO TO 2.

Fig 1: Checking Voltage Between IPDM E/R Terminal 22 & Ground

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

Check the following.

• 40A fusible link
• Harness for open or short between IPDM E/R and battery
  1. Repair open circuit or short to ground or short to power in harness or connectors.
• CHECK COOLING FAN MOTOR CIRCUIT FOR OPEN OR SHORT 
  1. Disconnect cooling fan motor harness connector.
  2. Check harness continuity between cooling fan motor terminal 1 and IPDM E/R terminal 24, cooling fan motor terminal 2 and ground.

     Refer to WIRING DIAGRAM .

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

  OK or NG 

  1. OK: GO TO 4.
  2. NG: Repair open circuit or short to ground or short to power in harness or connectors.
  Fig 2: Locating Cooling Fan Motor Harness Connector

  Courtesy of NISSAN MOTOR CO., U.S.A.
• CHECK COOLING FAN MOTOR 

  Refer to "COMPONENT INSPECTION "

  OK or NG 

  1. OK: GO TO 5.
  2. NG: Replace cooling fan motor.
• CHECK INTERMITTENT INCIDENT 

  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.