2009 INFINITI QX56 Factory Service Manual

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INFINITI QX56 2009  Factory Service Manual LAN-16
< BASIC INSPECTION >[CAN FUNDAMENTAL]
DIAGNOSIS AND REPAIR WORKFLOW
CAN system type is easily checked with the vehicle equi
pment identification information shown in the chart.
CAN System Type

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INFINITI QX56 2009  Factory Service Manual LAN
DIAGNOSIS AND REPAIR WORKFLOWLAN-17
< BASIC INSPECTION > [CAN FUNDAMENTAL]
C
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G H
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B A
O P
N
CAN system type is easily checked wi
th the vehicle equipment identification information sh

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INFINITI QX56 2009  Factory Service Manual LAN-18
< BASIC INSPECTION >[CAN FUNDAMENTAL]
DIAGNOSIS AND REPAIR WORKFLOW
Interview Sheet (Example)
COLLECT DATA
Collect CONSULT-III Data
Print out or save the following CONSULT-III data.
• SELF-DI

Page 2588 of 4171

INFINITI QX56 2009  Factory Service Manual LAN
DIAGNOSIS AND REPAIR WORKFLOWLAN-19
< BASIC INSPECTION > [CAN FUNDAMENTAL]
C
D
E
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N
Some items may not be needed depending on CAN system type of vehicle.
Create On-board Diagn

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INFINITI QX56 2009  Factory Service Manual LAN-20
< BASIC INSPECTION >[CAN FUNDAMENTAL]
DIAGNOSIS AND REPAIR WORKFLOW
For some models, CAN communication diagnosis result is 
received from the vehicle monitor. (CONSULT-III is
not available.)
CR

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INFINITI QX56 2009  Factory Service Manual LAN
DIAGNOSIS AND REPAIR WORKFLOWLAN-21
< BASIC INSPECTION > [CAN FUNDAMENTAL]
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• For abbreviations, refer to 
LAN-36, "Abbreviation List".
DETECT THE ROOT CAUSE
Identif

Page 2591 of 4171

INFINITI QX56 2009  Factory Service Manual LAN-22
< BASIC INSPECTION >[CAN FUNDAMENTAL]
DIAGNOSIS AND REPAIR WORKFLOW
Identify the error circuit using information from t
he “CAN DIAG SUPPORT MNTR” (“ECU list” included).
1. ECU list: Ch

Page 2592 of 4171

INFINITI QX56 2009  Factory Service Manual LAN
DIAGNOSIS AND REPAIR WORKFLOWLAN-23
< BASIC INSPECTION > [CAN FUNDAMENTAL]
C
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c. Reception item of “AV”: “UNKWN” is not indicated. This indicates normal communic