2009 INFINITI QX56 Factory Service Manual

Page 2841 of 4171

INFINITI QX56 2009  Factory Service Manual PCS-4
< BASIC INSPECTION >[IPDM E/R]
DIAGNOSIS AND REPAIR WORKFLOW
8. DETECT MALFUNCTIONING PART BY DIAGNOSTIC PROCEDURE
Inspect according to Diagnostic Procedure of the system.
NOTE:
The Diagnostic P

Page 2842 of 4171

INFINITI QX56 2009  Factory Service Manual PCS
RELAY CONTROL SYSTEMPCS-5
< FUNCTION DIAGNOSIS > [IPDM E/R]
C
D
E
F
G H
I
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K L
B A
O P
N
FUNCTION DIAGNOSIS
RELAY CONTROL SYSTEM
System DiagramINFOID:0000000003776486
AWMIA1158GB
Revision: Decemb

Page 2843 of 4171

INFINITI QX56 2009  Factory Service Manual PCS-6
< FUNCTION DIAGNOSIS >[IPDM E/R]
RELAY CONTROL SYSTEM
System Description
INFOID:0000000003776487
IPDM E/R activates the internal cont rol circuit to perform the relay ON-OFF control according to

Page 2844 of 4171

INFINITI QX56 2009  Factory Service Manual PCS
RELAY CONTROL SYSTEMPCS-7
< FUNCTION DIAGNOSIS > [IPDM E/R]
C
D
E
F
G H
I
J
K L
B A
O P
N
Component Parts LocationINFOID:0000000003776488
1. IPDM E/R E118, E119, E120, E121, 
E122, E123, E124
ALMI

Page 2845 of 4171

INFINITI QX56 2009  Factory Service Manual PCS-8
< FUNCTION DIAGNOSIS >[IPDM E/R]
POWER CONTROL SYSTEM
POWER CONTROL SYSTEM
System DiagramINFOID:0000000003776489
System DescriptionINFOID:0000000003776490
COOLING FAN CONTROL
IPDM E/R controls t

Page 2846 of 4171

INFINITI QX56 2009  Factory Service Manual PCS
SIGNAL BUFFER SYSTEMPCS-9
< FUNCTION DIAGNOSIS > [IPDM E/R]
C
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E
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G H
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K L
B A
O P
N
SIGNAL BUFFER SYSTEM
System DiagramINFOID:0000000003776491
System DescriptionINFOID:0000000003776492
IPDM

Page 2847 of 4171

INFINITI QX56 2009  Factory Service Manual PCS-10
< FUNCTION DIAGNOSIS >[IPDM E/R]
POWER CONSUMPTION CONTROL SYSTEM
POWER CONSUMPTIO
N CONTROL SYSTEM
System DiagramINFOID:0000000003776493
System DescriptionINFOID:0000000003776494
OUTLINE
• I

Page 2848 of 4171

INFINITI QX56 2009  Factory Service Manual PCS
POWER CONSUMPTION CONTROL SYSTEMPCS-11
< FUNCTION DIAGNOSIS > [IPDM E/R]
C
D
E
F
G H
I
J
K L
B A
O P
N
Component Parts LocationINFOID:0000000003776495
1. IPDM E/R E118, E119, E120, E121, 
E122, E1