2010 INFINITI QX56 Factory Service Manual

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INFINITI QX56 2010  Factory Service Manual LAN
DIAGNOSIS AND REPAIR WORKFLOWLAN-19
< BASIC INSPECTION > [CAN FUNDAMENTAL]
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E
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B A
O P
N
Some items may not be needed depending on CAN system type of vehicle.
Create On-board Diagn

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INFINITI QX56 2010  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 2010  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

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INFINITI QX56 2010  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

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INFINITI QX56 2010  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

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INFINITI QX56 2010  Factory Service Manual LAN-24
< BASIC INSPECTION >[CAN FUNDAMENTAL]
DIAGNOSIS AND REPAIR WORKFLOW
On CAN DIAG SUPPORT MNTR (without PAST), “UNK
WN” is indicated even though the item is not used
in the trouble diagnosis.

Page 2623 of 4210

INFINITI QX56 2010  Factory Service Manual LAN
DIAGNOSIS AND REPAIR WORKFLOWLAN-25
< BASIC INSPECTION > [CAN FUNDAMENTAL]
C
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h. Reception item of “ABS”: “UNKWN” is not indicated. This indicates normal communi

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INFINITI QX56 2010  Factory Service Manual LAN-26
< BASIC INSPECTION >[CAN FUNDAMENTAL]
DIAGNOSIS AND REPAIR WORKFLOW
Reception item of “IPDM-E”: On “ECM”, “OK” is indicated. IPDM-E 
communicates normally with ECM. Put
a check mark