2004 INFINITI QX56 engine

IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
PG-27
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Revision: August 20072004 QX56
IPDM E/R Power/Ground Circuit InspectionEKS007NU
1. FUSE AND FUSIBLE LINK INSPECTION
Check that the following fusible links or IPDM E/R fuses are not blown.
OK or NG
OK >> GO TO 2.
NG >> Replace fuse or fusible link.
2. POWER CIRCUIT INSPECTION
1. Disconnect IPDM E/R harness connector E118.
2. Check voltage between IPDM E/R harness connector E118 terminals 1 (B/Y), 2 (R) and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace IPDM E/R power circuit harness.
3. GROUND CIRCUIT INSPECTION
1. Disconnect IPDM E/R harness connectors E122 and E124.
2. Check continuity between IPDM E/R harness connector E122
terminal 38 (B), and E124 terminal 59 (B) and ground.
OK or NG
OK >> Inspection End.
NG >> Repair or replace ground circuit harness of IPDM E/R.
Terminal No. Signal name Fuse, fusible link No.
1, 2 Battery power a, c, d
Battery voltage should exist.
SKIA1987E
Continuity should exist.
WKIA1453E

PG-28
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
Revision: August 20072004 QX56
Inspection with CONSULT-II (Self-Diagnosis)EKS007NV
CAUTION:
If a CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be
detected in self-diagnosis depending on which control unit(s) carry out CAN communication.
1. SELF-DIAGNOSIS RESULT CHECK
1. Connect CONSULT-II and select "IPDM E/R" on the Diagnosis System Selection screen.
2. Select "SELF-DIAG RESULTS" on the diagnosis mode selection screen.
3. Check display content in self-diagnosis results.
NOTE:
The Details for Display for the Period are as follows:

CRNT: Error currently detected by IPDM E/R.

PAST: Error detected in the past and stored in IPDM E/R memory.
Contents displayed
NO DTC DETECTED. FURTHER TESTING MAY BE REQUIRED.>>Inspection End.
CAN COMM CIRC>>Print out the self-diagnosis result and refer to LAN-5, "
CAN COMMUNICATION" .
CONSULT-II DisplayCONSULT-II
display codeTIME
Details of diagnosis result
CRNT PAST
NO DTC IS DETECTED.
FURTHER TESTING MAY BE REQUIRED.— — — No malfunction
CAN COMM CIRC U1000 X XAny of items listed below have errors:

TRANSMIT DIAG

ECM

BCM/SEC

IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
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Revision: August 20072004 QX56
Removal and Installation of IPDM E/REKS007NW
REMOVAL
1. Disconnect negative battery cable.
2. Remove IPDM E/R upper cover.
3. Release 2 clips and pull IPDM E/R up from case.
4. Disconnect IPDM E/R connectors and remove the IPDM E/R.
INSTALLATION
Installation is in the reverse order of removal.
WKIA1454E
WKIA1696E

GROUND CIRCUIT
PG-33
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Revision: August 20072004 QX56
ENGINE ROOM HARNESS
WKIA4232E

PG-36
GROUND CIRCUIT
Revision: August 20072004 QX56
ENGINE CONTROL HARNESS
WKIA1460E

PG-40
HARNESS
Revision: August 20072004 QX56
HARNESSPFP:24010
Harness LayoutEKS007NY
HOW TO READ HARNESS LAYOUT
The following Harness Layouts use a map style grid to help locate
connectors on the drawings:

Main Harness

Engine Room Harness LH View (Engine Compartment)

Engine Room Harness RH View (Engine Compartment)

Engine Control Harness

Chassis Harness

Body Harness

Body No. 2 Harness
To use the grid reference
1. Find the desired connector number on the connector list.
2. Find the grid reference.
3. On the drawing, find the crossing of the grid reference letter column and number row.
4. Find the connector number in the crossing zone.
5. Follow the line (if used) to the connector.
CONNECTOR SYMBOL
Main symbols of connector (in Harness Layout) are indicated below.
SEL252V
Connector typeWater proof type Standard type
Male Female Male Female

Cavity: 4 or Less

Relay connector

Cavity: From 5 to 8

Cavity: 9 or More

Ground terminal etc.
—

PG-44
HARNESS
Revision: August 20072004 QX56
ENGINE ROOM HARNESS (LH VIEW)
Engine Compartment
Refer to PG-47, "ENGINE ROOM HARNESS (RH VIEW)" for continuation of engine room harness.
WKIA3530E

HARNESS
PG-47
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Revision: August 20072004 QX56
ENGINE ROOM HARNESS (RH VIEW)
Engine Compartment
Refer to PG-44, "ENGINE ROOM HARNESS (LH VIEW)" for continuation of engine room harness.
WKIA4235E