2006 INFINITI QX56 Factory Service Manual

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INFINITI QX56 2006 Factory Service Manual PG-24
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
Revision: November 20092006 QX56
Auto Active TestEKS00BN6
DESCRIPTION
In auto active test mode, operation inspection can be performe

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INFINITI QX56 2006 Factory Service Manual IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)PG-25
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Revision: November 2009 2006 QX56
Concept of Auto Active Test
IPDM E/R actuates auto active test mode when

IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)PG-25
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Revision: November 2009 2006 QX56
Concept of Auto Active Test
IPDM E/R actuates auto active test mode when it receives door switch signal from BCM via CAN commu-
nication line. Therefore, when auto active test mode is activated successfully, CAN communication
between IPDM E/R and BCM is normal.
If any of the systems controlled by IPDM E/R cannot be operated, possible cause can be easily diagnosed
using auto active test.
Diagnosis chart in auto active test mode
Item Number Test Item Operation Time/Frequency
1 Rear window defogger 10 seconds
2 Front wipers LOW 5 seconds then HIGH 5 seconds
3 Tail, license, and parking lamps 10 seconds
4 Front fog lamps 10 seconds
5 Headlamps Low on for 10 seconds. High on-off five times.
6 A/C compressor (magnetic clutch) ON-OFF 5 times
7 Cooling fan 10 seconds
SymptomInspection contents Possible cause
Rear window defogger
does not operate. Perform auto active
test. Does rear win-
dow defogger oper-
ate?YES
BCM signal input circuit
NO
Rear window defogger relay
Open circuit of rear window defogger
IPDM E/R malfunction
Harness or connector malfunction between IPDM E/R and rear window
defogger
Any of front wipers, tail
and parking lamps, front
fog lamps, and head-
lamps (Hi, Lo) do not
operate. Perform auto active
test. Does system in
question operate?YES
BCM signal input system
NO
Lamp/wiper motor malfunction
Lamp/wiper motor ground circuit malfunction
Harness/connector malfunction between IPDM E/R and system in
question
IPDM E/R (integrated relay) malfunction
A/C compressor does
not operate. Perform auto active
test. Does magnet
clutch operate?YES
BCM signal input circuit
CAN communication signal between BCM and ECM
CAN communication signal between ECM and IPDM E/R
NO
Magnet clutch malfunction
Harness/connector malfunction between IPDM E/R and magnet clutch
IPDM E/R (integrated relay) malfunction
Cooling fan does not
operate. Perform auto active
test. Does cooling fan
operate?YES
ECM signal input circuit
CAN communication signal between ECM and IPDM E/R
NO
Cooling fan motor malfunction
Harness/connector malfunction between IPDM E/R and cooling fan
motor
IPDM E/R (integrated relay) malfunction

Page 2667 of 3383

INFINITI QX56 2006 Factory Service Manual PG-26
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
Revision: November 20092006 QX56
SchematicEKS00BN7
WKWA3831E

Page 2668 of 3383

INFINITI QX56 2006 Factory Service Manual IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)PG-27
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Revision: November 2009 2006 QX56
IPDM E/R Terminal ArrangementEKS00BN8
WKIA4656E

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INFINITI QX56 2006 Factory Service Manual PG-28
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
Revision: November 20092006 QX56
IPDM E/R Power/Ground Circuit InspectionEKS00BN9
1. FUSE AND FUSIBLE LINK INSPECTION
Check that the

Page 2670 of 3383

INFINITI QX56 2006 Factory Service Manual IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)PG-29
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Revision: November 2009 2006 QX56
Inspection with CONSULT-II (Self-Diagnosis)EKS00BNA
CAUTION:
If a CONSULT-

Page 2671 of 3383

INFINITI QX56 2006 Factory Service Manual PG-30
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
Revision: November 20092006 QX56
Removal and Installation of IPDM E/REKS00BNB
REMOVAL
1. Disconnect negative battery cable.
2. Remove

Page 2672 of 3383

INFINITI QX56 2006 Factory Service Manual GROUND CIRCUITPG-31
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Revision: November 2009 2006 QX56
GROUND CIRCUITPFP:24080
Ground DistributionEKS00BNC
MAIN HARNESS
WKIA4657E

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