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.
   1. Voltage: Battery voltage 

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

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

OK or NG

1. OK: GO TO  3.
2. NG: GO TO 2.

Check the following.

• 40A fusible links
• 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.

1. Disconnect cooling fan motor-1 harness connector and cooling fan motor-2 harness connector.
2. Disconnect IPDM E/R harness connector E5.
3. Check harness continuity between cooling fan motor-1 terminal 2 and IPDM E/R terminal 11, cooling fan motor-1 terminal 3 and ground.

   Refer to wiring diagram.

   1. Continuity should exist. 
      Fig 2: Locating Fan Motor Harness Connector

      Courtesy of NISSAN MOTOR CO., U.S.A.
4. Also check harness for short to ground and short to power.
5. Check harness continuity between cooling fan motor-2 terminal 2 and IPDM E/R terminal 10, cooling fan motor-2 terminal 3 and ground.

   Refer to wiring diagram.

   1. Continuity should exist. 
6. 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 connectors.

Refer to Component Inspection .

OK or NG

1. OK: GO TO 5.
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) - G35 SEDAN .
2. NG: Repair or replace harness or connector.