2009 INFINITI QX56 Factory Service Manual

Page 1953 of 4171

INFINITI QX56 2009  Factory Service Manual DIAGNOSIS AND REPAIR WORKFLOWEXL-5
< BASIC INSPECTION >
C
DE
F
G H
I
J
K
M A
B
EXL
N
O P
DETAILED FLOW
1.INTERVIEW FOR MALFUNCTION
Find out what the customers concerns are.
>> GO TO 2.
2.SYMPTOM CHEC

Page 1954 of 4171

INFINITI QX56 2009  Factory Service Manual EXL-6
< BASIC INSPECTION >
DIAGNOSIS AND REPAIR WORKFLOW
YES >> GO TO 5.
NO >> GO TO 11.
11 .REPAIR CHECK (OPERATION CHECK)
Check the operation of each part.
Does it operate normally?
YES >> Inspectio

Page 1955 of 4171

INFINITI QX56 2009  Factory Service Manual HEADLAMPEXL-7
< FUNCTION DIAGNOSIS >
C
DE
F
G H
I
J
K
M A
B
EXL
N
O P
FUNCTION DIAGNOSIS
HEADLAMP
System DiagramINFOID:0000000005867511
System DescriptionINFOID:0000000005867512
Control of the headlam

Page 1956 of 4171

INFINITI QX56 2009  Factory Service Manual EXL-8
< FUNCTION DIAGNOSIS >
HEADLAMP
A Xenon type headlamp is adapted to the low beam headlamps. Xenon bulbs do not use a filament. Instead,
they produce light when a high voltage current is pa ssed

Page 1957 of 4171

INFINITI QX56 2009  Factory Service Manual DAYTIME LIGHT SYSTEMEXL-9
< FUNCTION DIAGNOSIS >
C
DE
F
G H
I
J
K
M A
B
EXL
N
O P
DAYTIME LIGHT SYSTEM
System DiagramINFOID:0000000003776148
System DescriptionINFOID:0000000003776149
The headlamp syst

Page 1958 of 4171

INFINITI QX56 2009  Factory Service Manual EXL-10
< FUNCTION DIAGNOSIS >
DAYTIME LIGHT SYSTEM
Component Description
INFOID:0000000003776151
After starting the engine with the parking brake released and  the lighting switch in the OFF or 1ST po

Page 1959 of 4171

INFINITI QX56 2009  Factory Service Manual AUTO LIGHT SYSTEMEXL-11
< FUNCTION DIAGNOSIS >
C
DE
F
G H
I
J
K
M A
B
EXL
N
O P
AUTO LIGHT SYSTEM
System DiagramINFOID:0000000005867516
System DescriptionINFOID:0000000003776153
• BCM (Body Control

Page 1960 of 4171

INFINITI QX56 2009  Factory Service Manual EXL-12
< FUNCTION DIAGNOSIS >
AUTO LIGHT SYSTEM
Component Parts Location
INFOID:0000000003776154
Component DescriptionINFOID:0000000003776155
AUTO LIGHT OPERATION
The auto light system operates t he l