Procedure A

1. Turn ignition switch OFF.
2. Disconnect IPDM E/R harness connector E6.
3. Check voltage between IPDM E/R terminal 16 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 16 And 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.

1. Disconnect cooling fan motor harness connector.
2. Disconnect IPDM E/R harness connectors E5 and E9.
   Fig 2: Locating Cooling Fan Motor Harness Connector

   Courtesy of NISSAN MOTOR CO., U.S.A.
3. Check harness continuity between the following; cooling fan motor terminal 2 and IPDM E/R terminal 8, cooling fan motor terminal 3 and ground, cooling fan motor terminal 4 and ground, IPDM E/R terminal 54 and ground.

   Refer to wiring diagram.

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

OK or NG

1. OK: GO TO  5.
2. NG: GO TO 4.

Check the following.

• Harness connectors E55, E54
• Harness for open or short between IPDM E/R and cooling fan motor
• Harness for open or short between IPDM E/R and ground
• Harness for open or short between cooling fan motor and ground
  1. : Repair open circuit or short to ground or short to power in harness or connectors.

Refer to COOLING FAN MOTOR .

OK or NG

1. OK: GO TO 6.
2. NG: Replace cooling fan motor.

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.