Procedure B

1. Turn ignition switch OFF.
2. Disconnect cooling fan motor-1 harness connector and cooling fan motor-2 harness connector.
3. Disconnect IPDM E/R harness connectors E5 and E6.
4. Check harness continuity between the following; cooling fan motor-1 terminal 1 and IPDM E/R terminal 8, cooling fan motor-1 terminal 4 and IPDM E/R terminal 9, IPDM E/R terminal 14 and ground.

   Refer to wiring diagram.

   1. Continuity should exist. 
5. Also check harness for short to ground and short to power.
6. Check harness continuity between the following; cooling fan motor-2 terminal 1 and IPDM E/R terminal 13, cooling fan motor-2 terminal 4 and IPDM E/R terminal 12, IPDM E/R terminal 14 and ground.

   Refer to wiring diagram.

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

      Courtesy of NISSAN MOTOR CO., U.S.A.
7. Also check harness for short to ground and short to power.

OK or NG

1. OK: GO TO 2.
2. NG: Repair open circuit or short to ground or short to power in harness or connectors.

Refer to Component Inspection .

OK or NG

1. OK: GO TO 3.
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 connectors.