Procedure A

1. Turn ignition switch OFF.
2. Disconnect IPDM E/R harness connector E123.
3. Check voltage between IPDM E/R terminal 15, 16 and ground with CONSULT-II or tester.

   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 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

1. : Repair open circuit or short to ground in harness or connectors.

1. Disconnect IPDM E/R harness connector E121, E124.
2. Check harness continuity between IPDM E/R terminal 14, 38, 60 and ground. Refer to Wiring Diagram .

   Continuity should exist. 

3. Also check harness for short to power.

OK or NG

1. OK : GO TO 4.
2. NG : Repair open circuit or short to power in harness or connectors.

1. Disconnect cooling fan motor-1 harness connector.
2. Disconnect IPDM E/R harness connector E118, E123.
3. Check harness continuity between the following terminals. Cooling fan motor-1 terminal 2 and IPDM E/R terminal 11 Cooling fan motor-1 terminal 3 and IPDM E/R terminal 9 Refer to Wiring diagram .

   Continuity should exist. 

4. Also check harness for short to ground or short to power.

OK or NG

1. OK : GO TO 5
2. NG : Repair open circuit or short to ground or short to power in harness or connectors.
   Fig 2: Disconnecting Cooling Fan Motor-1 Harness Connector

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

1. Check harness continuity between the following terminals. Cooling fan motor-1 terminal 1 and IPDM E/R terminal 8 Cooling fan motor-1 terminal 4 and ground

   Refer to Wiring diagram .

   Continuity should exist. 

2. Also check harness for short to power.

OK or NG

1. OK : GO TO 6.
2. NG : Repair open circuit or short to power in harness or connectors.

1. Disconnect cooling fan motor-2 harness connector.
2. Check harness continuity between the following terminals. Cooling fan motor-2 terminals 2 and IPDM E/R terminal 13 Cooling fan motor-2 terminals 3 and IPDM E/R terminal 12 Refer to Wiring diagram .

   Continuity should exist. 

3. Also check harness for short to ground or short to power.

OK or NG

1. OK : GO TO 7.
2. NG : Repair open circuit or short to ground or short to power in harness or connectors.
   Fig 3: Disconnecting Cooling Fan Motor-2 Harness Connector

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

1. Check harness continuity between the following terminals. Cooling fan motor-2 terminal 1 and IPDM E/R terminal 10 Cooling fan motor-2 terminal 4 and ground

   Refer to Wiring Diagram .

   Continuity should exist. 

2. Also check harness for short to power.

OK or NG

1. OK : GO TO 8.
2. NG : Repair open circuit or short to power in harness or connectors.

Refer to "COMPONENT INSPECTION ".

OK or NG

1. OK : GO TO 9.
2. NG : Replace cooling fan motors.

Preform "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT ".

OK or NG

1. OK : Replace IPDM E/R. Refer to "IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ".
2. NG : Repair or replace harness or connector.