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

WARNING: This page is about a different car, the 2009 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.

CHECK FUSES AND FUSIBLE LINK

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

FUSE AND FUSIBLE LINK REFERENCE

Terminal No.	Signal name	Fuses and fusible link No.
1, 2	Battery power supply	B, D
-		42
-		43

Is the fuse blown?

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

NO: GO TO 2

CHECK POWER SUPPLY CIRCUIT

Turn ignition switch OFF.
Disconnect IPDM E/R connectors.
Check voltage between IPDM E/R harness connector and ground.

TERMINALS VOLTAGE REFERENCE

Terminals			Voltage (V) (Approx.)
	(+)			(-)
	IPDM E/R			(-)
Connector	Terminal	Ground
E16	1		Battery voltage
E16	2		Battery voltage

Fig 1: Checking Voltage Between IPDM E/R Harness Connector Terminal 1, 2 And Ground

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

Is the measurement value normal?

YES: GO TO 3

NO: Repair harness or connector.

CHECK GROUND CIRCUIT

Check continuity between IPDM E/R harness connectors and ground.

TERMINALS CONTINUITY REFERENCE

IPDM E/R		Continuity
Connector	Terminal	Continuity
A: E18	12	Yes
B: E17	41	Yes

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

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

Does continuity exist?

YES: Inspection End.

NO: Repair harness or connector.