IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM): Diagnosis Procedure

Check that the following IPDM E/R fuses or fusible link are not blown.

Is the fuse blown? 

YES: Replace the blown fuse or fusible link after repairing the affected circuit.

No: GO TO 2

1. Turn ignition switch OFF.
2. Disconnect IPDM E/R.
3. Check voltage between IPDM E/R harness connectors and ground.
   CONNECTOR TERMINAL VOLTAGE CHART
   
   

   Terminals			Ignition switch position
   (+)		(-)	OFF	ON	START
   Connector	Terminal
   E118 (A)	1	Ground	Battery voltage	Battery voltage	Battery voltage
   	2		Battery voltage	Battery voltage	Battery voltage
   E119 (B)	12		0V	Battery voltage	Battery voltage

   Fig 1: Checking Voltage Between IPDM E/R Harness Side Connectors And Ground

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

   Is the measurement value normal? 

   YES: GO TO 3

   No: Repair or replace harness.

1. Turn ignition switch OFF.
2. Check continuity between IPDM E/R harness connectors and ground.
   CONNECTOR TERMINAL CONTINUITY CHART
   
   

   IPDM E/R		Ground	Continuity
   Connector	Terminal
   E122 (A)	38		Yes
   E124 (B)	59

   Does continuity exist? 

   YES: Inspection End.

   No: Repair or replace harness.

   Fig 2: Checking Continuity Between IPDM E/R Harness Side Connectors And Ground

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