2008 INFINITI QX56 Factory Service Manual

Page 2745 of 4083

INFINITI QX56 2008  Factory Service Manual PCS-12
< FUNCTION DIAGNOSIS >[IPDM E/R]
DIAGNOSIS SYSTEM (IPDM E/R)
DIAGNOSIS SYSTEM (IPDM E/R)
Diagnosis DescriptionINFOID:0000000001696490
AUTO ACTIVE TEST
Description
In auto active test mode, the

Page 2746 of 4083

INFINITI QX56 2008  Factory Service Manual PCS
DIAGNOSIS SYSTEM (IPDM E/R)PCS-13
< FUNCTION DIAGNOSIS > [IPDM E/R]
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Concept of auto active test
• IPDM E/R starts the auto active test with the door 
switch signals

Page 2747 of 4083

INFINITI QX56 2008  Factory Service Manual PCS-14
< FUNCTION DIAGNOSIS >[IPDM E/R]
DIAGNOSIS SYSTEM (IPDM E/R)
CONSULT - III Func tion (IPDM E/R)
INFOID:0000000001696491
APPLICATION ITEM
CONSULT-III performs the following functi ons via CAN co

Page 2748 of 4083

INFINITI QX56 2008  Factory Service Manual PCS
DIAGNOSIS SYSTEM (IPDM E/R)PCS-15
< FUNCTION DIAGNOSIS > [IPDM E/R]
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ACTIVE TEST
Te s t  i t e m
Monitor Item
[Unit] MAIN SIG-
NALS Description
MOTOR FAN REQ
[1/2/3/4]

Page 2749 of 4083

INFINITI QX56 2008  Factory Service Manual PCS-16
< FUNCTION DIAGNOSIS >[IPDM E/R]
DIAGNOSIS SYSTEM (IPDM E/R)
EXTERNAL LAMPSOFF
OFF
TAIL Operates the tail lamp relay.
LO Operates the headlamp low relay.
HI Operates the headlamp low relay and

Page 2750 of 4083

INFINITI QX56 2008  Factory Service Manual PCS
U1000 CAN COMM CIRCUITPCS-17
< COMPONENT DIAGNOSIS > [IPDM E/R]
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COMPONENT DIAGNOSIS
U1000 CAN COMM CIRCUIT
DescriptionINFOID:0000000001696492
Refer to 
LAN-4, "System

Page 2751 of 4083

INFINITI QX56 2008  Factory Service Manual PCS-18
< COMPONENT DIAGNOSIS >[IPDM E/R]
POWER SUPPLY AND GROUND CIRCUIT
POWER SUPPLY AND GROUND CIRCUIT
Diagnosis ProcedureINFOID:0000000001696495
1. CHECK FUSES AND FUSIBLE LINK
Check that the follo

Page 2752 of 4083

INFINITI QX56 2008  Factory Service Manual PCS
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
PCS-19
< ECU DIAGNOSIS > [IPDM E/R]
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ECU DIAGNOSIS
IPDM E/R (INTELLIGENT POWER 
DISTRIBUTION MODULE ENGINE