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 

OK or NG 

• OK: GO TO  3.
• NG: GO TO  2.

Fig 1: Checking Voltage Between IPDM E/R Terminals 15, 16 & Ground

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

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 and cooling fan motor-2 harness connector.
2. Check harness continuity between the following terminals.

   Cooling fan motor-1 terminal 1 and IPDM E/R terminal 10, cooling fan motor-1 terminal 4 and ground, cooling fan motor-2 terminal 1 and IPDM E/R terminal 11, cooling fan motor-2 terminal 4 and ground, IPDM E/R terminal 60 and ground. Refer to WIRING DIAGRAM .

   • Continuity should exist. 
3. 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.

Fig 2: Checking Cooling Fan Motors Circuit

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

Refer to COMPONENT INSPECTION .

OK or NG 

• OK: GO TO  5.
• 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.