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LAN-52
[CAN]
CAN SYSTEM (TYPE 2)
Revision: 2004 November 2004 FX35/FX45
CAN SYSTEM (TYPE 2)PFP:23710
System DescriptionAKS00BZQ
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Many elec-
tronic control units are equipped onto a vehicle, and each control unit shares information and links with other
control units during operation (not independent). In CAN communication, control units are connected with 2
communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only.
Component Parts and Harness Connector LocationAKS00BZR
SKIA7125E
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CAN SYSTEM (TYPE 2)
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Revision: 2004 November 2004 FX35/FX45
Wiring Diagram - CAN -AKS00BZS
TKWM1293E
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LAN-54
[CAN]
CAN SYSTEM (TYPE 2)
Revision: 2004 November 2004 FX35/FX45
TKWH0248E
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![INFINITI FX35 2004 Service Manual CAN SYSTEM (TYPE 2)
LAN-55
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Revision: 2004 November 2004 FX35/FX45
Work FlowAKS00BZT
1. When there are no indications of “BCM”, “METER A/C AMP”, “AUTO DRIVE P INFINITI FX35 2004 Service Manual CAN SYSTEM (TYPE 2)
LAN-55
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Revision: 2004 November 2004 FX35/FX45
Work FlowAKS00BZT
1. When there are no indications of “BCM”, “METER A/C AMP”, “AUTO DRIVE P](/manual-img/42/57021/w960_57021-3355.png)
CAN SYSTEM (TYPE 2)
LAN-55
[CAN]
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Revision: 2004 November 2004 FX35/FX45
Work FlowAKS00BZT
1. When there are no indications of “BCM”, “METER A/C AMP”, “AUTO DRIVE POS.” or “IPDM E/R” on
“SELECT SYSTEM” display of CONSULT-II, print the “SELECT SYSTEM”.
2. Print all the data of “SELF-DIAG RESULTS” for “ENGINE”, “A/T”, “BCM”, “METER A/C AMP”, “ABS”,
“AUTO DRIVE POS.”, and “IPDM E/R” displayed on CONSULT-II.
3. Print all the data of “CAN DIAG SUPPORT MNTR” for “ENGINE”, “A/T”, “BCM”, “METER A/C AMP”,
“ABS”, “AUTO DRIVE POS.”, and “IPDM E/R” displayed on CONSULT-II.
4. Attach the printed sheet of “SELECT SYSTEM”, “SELF-DIAG RESULTS” and “CAN DIAG SUPPORT
MNTR” onto the check sheet. Refer to LAN-57, "
CHECK SHEET" .
5. Based on the indications of “SELECT SYSTEM” and the results of “CAN DIAG SUPPORT MNTR”, put
marks “v” onto the items with “No indication”, “NG”, or “UNKWN” in the check sheet table. Refer to LAN-
57, "CHECK SHEET" .
NOTE:
If “NG” is displayed on “INITIAL DIAG (Initial diagnosis)” as “CAN DIAG SUPPORT MNTR” for the diag-
nosed control unit, replace the control unit.
The “CAN DIAG SUPPORT MNTR” items, which are not in check sheet table, are not related to diag-
nostic procedure on service manual.
So it is not necessary to check the status of “CAN DIAG SUPPORT MNTR” items which are not indi-
cated in check sheet table.
6. Check CAN communication line of the integrated display system. Refer to AV- 8 5 , "
CAN Communication
Line Inspection" .
7. Attach the CAN DIAG MONITOR check sheet onto the check sheet. Refer to LAN-57, "
CHECK SHEET" .
8. Mark the “NG” or “UNKWN” item of the check sheet table with “v” from the result of CAN DIAG MONITOR
check sheet. Refer to LAN-57, "
CHECK SHEET" .
PKIA2093E
PKIA8260E
PKIA8343E
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LAN-56
[CAN]
CAN SYSTEM (TYPE 2)
Revision: 2004 November 2004 FX35/FX45
NOTE:
If “NG” is displayed on “CAN COMM” as “CAN DIAG MNTR” for the diagnosed control unit, replace the
control unit. Refer to AV- 8 5 , "
CAN Communication Line Inspection" .
9. According to the check sheet results (example), start inspection. Refer to LAN-59, "
CHECK SHEET
RESULTS (EXAMPLE)" .
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CAN SYSTEM (TYPE 2)
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Revision: 2004 November 2004 FX35/FX45
CHECK SHEET
NOTE:
If “NG” is displayed on “INITIAL DIAG (Initial diagnosis)” or “CAN COMM” for the diagnosed control unit,
replace the control unit.
PKIA7943E
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LAN-58
[CAN]
CAN SYSTEM (TYPE 2)
Revision: 2004 November 2004 FX35/FX45
PKIA7944E
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CAN SYSTEM (TYPE 2)
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Revision: 2004 November 2004 FX35/FX45
CHECK SHEET RESULTS (EXAMPLE)
NOTE:
If “NG” is displayed on “INITIAL DIAG (Initial diagnosis)” or “CAN COMM” for the diagnosed control unit,
replace the control unit.
Case 1
Check harness between TCM and data link connector. Refer to LAN-74, "Circuit Check Between TCM and
Data Link Connector" .
PKIA7945E
SKIA6570E