INFINITI QX56 2008 Factory Service Manual

INFINITI QX56 2008 Factory Service Manual QX56 2008 INFINITI INFINITI https://www.carmanualsonline.info/img/42/57030/w960_57030-0.png INFINITI QX56 2008 Factory Service Manual
Trending: fuel pump, ESP, fuse box, dimensions, air filter, spark plugs, fog light bulb

Page 2501 of 4083

INFINITI QX56 2008  Factory Service Manual LAN-6
< FUNCTION DIAGNOSIS >[CAN FUNDAMENTAL]
DIAG ON CAN
DIAG ON CAN
DescriptionINFOID:0000000001374964
“Diag on CAN” is a diagnosis using CAN communication instead of previous DDL1 and DDL2 comm

Page 2502 of 4083

INFINITI QX56 2008  Factory Service Manual LAN
TROUBLE DIAGNOSISLAN-7
< FUNCTION DIAGNOSIS > [CAN FUNDAMENTAL]
C
D
E
F
G H
I
J
K L
B A
O P
N
TROUBLE DIAGNOSIS
Condition of Error DetectionINFOID:0000000001374966
“U1000” or “U1001” is in

Page 2503 of 4083

INFINITI QX56 2008  Factory Service Manual LAN-8
< FUNCTION DIAGNOSIS >[CAN FUNDAMENTAL]
TROUBLE DIAGNOSIS
Example: Data link connector branch line open circuit
NOTE:
• When data link connector branch line is open, transmission and reception

Page 2504 of 4083

INFINITI QX56 2008  Factory Service Manual LAN
TROUBLE DIAGNOSISLAN-9
< FUNCTION DIAGNOSIS > [CAN FUNDAMENTAL]
C
D
E
F
G H
I
J
K L
B A
O P
N
Example: Main Line Between Data Link Connector and ABS Actuator and Electr
ic Unit (Control Unit) Open

Page 2505 of 4083

INFINITI QX56 2008  Factory Service Manual LAN-10
< FUNCTION DIAGNOSIS >[CAN FUNDAMENTAL]
TROUBLE DIAGNOSIS
Self-Diagnosis
INFOID:0000000001374968
CAN Diagnostic Support MonitorINFOID:0000000001374969
CONSULT-III and CAN diagnostic support mon

Page 2506 of 4083

INFINITI QX56 2008  Factory Service Manual LAN
TROUBLE DIAGNOSISLAN-11
< FUNCTION DIAGNOSIS > [CAN FUNDAMENTAL]
C
D
E
F
G H
I
J
K L
B A
O P
N
Example: CAN DIAG SUPPORT MNTR indication
Without PAST
With PAST
MONITOR ITEM (ON-BOARD DIAGNOSIS)
NO

Page 2507 of 4083

INFINITI QX56 2008  Factory Service Manual LAN-12
< FUNCTION DIAGNOSIS >[CAN FUNDAMENTAL]
TROUBLE DIAGNOSIS
Example: Vehicle Display 
ItemResult indi-
cated Error counter
Description
CAN_COMM
(Initial diagnosis) OK
0 Normal at present
NG 1 –

Page 2508 of 4083

INFINITI QX56 2008  Factory Service Manual LAN
DIAGNOSIS AND REPAIR WORKFLOWLAN-13
< BASIC INSPECTION > [CAN FUNDAMENTAL]
C
D
E
F
G H
I
J
K L
B A
O P
N
BASIC INSPECTION
DIAGNOSIS AND REPAIR WORKFLOW
Information Needed for Trouble DiagnosisINFO

Page 2509 of 4083

INFINITI QX56 2008  Factory Service Manual LAN-14
< BASIC INSPECTION >[CAN FUNDAMENTAL]
DIAGNOSIS AND REPAIR WORKFLOW
Trouble Diagnosis Flow Chart
INFOID:0000000001374972
Trouble Diagnosis ProcedureINFOID:0000000001374973
INTERVIEW WITH CUSTOM

Page 2510 of 4083

INFINITI QX56 2008  Factory Service Manual LAN
DIAGNOSIS AND REPAIR WORKFLOWLAN-15
< BASIC INSPECTION > [CAN FUNDAMENTAL]
C
D
E
F
G H
I
J
K L
B A
O P
N
• Result: Symptom
NOTE:
• Check normal units as well as error symptoms.
- Example: Circ
Trending: fuel tank removal, mirror controls, engine oil capacity, center console, torque, radio antenna, service schedule