Procedure A

1. Turn ignition switch OFF.
2. Disconnect IPDM E/R harness connector E6.
3. Check voltage between IPDM E/R terminals 15, 16 and ground with CONSULT-II or tester.
   • Voltage: Battery voltage 
   Fig 1: IPDM E/R Terminals 15, 16 & Ground Voltage Test

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

OK or NG

• OK: GO TO  3.
• NG: GO TO 2.

Check the following.

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

1. Disconnect cooling fan motor-1 harness connector and cooling fan motor-2 harness connector.
2. Disconnect all IPDM E/R harness connectors.
3. Check harness continuity between the following; cooling fan motor-1 terminal 2 and IPDM E/R terminal 11, cooling fan motor-1 terminal 3 and ground, IPDM E/R terminal 38, 60 and ground, Refer to WIRING DIAGRAM .
   • Continuity should exist. 
   Fig 2: Locating Cooling Fan Motor Harness Connector

   Courtesy of NISSAN MOTOR CO., U.S.A.
4. Check harness continuity between the following; cooling fan motor-2 terminal 2 and IPDM E/R terminal 10, cooling fan motor-2 terminal 3 and ground.

   Refer to WIRING DIAGRAM .

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

OK or NG

• OK: GO TO  5.
• NG: GO TO 4.

Check the following.

• Harness connector E12, F3
• Harness connector F103, F151
• 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
  • : 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 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.