INFINITI QX56 2006 Factory Service Manual
Page 2311 of 3383
LAN-42
[CAN]
CAN SYSTEM (TYPE 1)
Revision: November 20092006 QX56
CHECK SHEET RESULTS (EXAMPLE)
NOTE:
If a check mark is put on “NG” on “INITIAL DIAG (Initial diagnosis) ”, replace the control unit.
Case 1
Check harness between TCM and driver seat control unit. Refer to LAN-124, "Inspection Between TCM and
Driver Seat Control Unit Circuit" .
PKIC3274E
PKIC2781E
Page 2312 of 3383
CAN SYSTEM (TYPE 1)LAN-43
[CAN]
C
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LAN
Revision: November 2009 2006 QX56
Case 2
Check harness between driver seat control unit and data link connector. Refer to LAN-126, "Inspection
Between Driver Seat Control Unit and Data Link Connector Circuit" .
PKIC3275E
PKIC2782E
Page 2313 of 3383
LAN-44
[CAN]
CAN SYSTEM (TYPE 1)
Revision: November 20092006 QX56
Case 3
Check harness between data link connector and ABS actuator and electric unit (control unit). Refer to LAN-
127, "Inspection Between Data Link Connector and ABS Actuator and Electric Unit (Control Unit) Circuit" .
PKIC3276E
PKIC2783E
Page 2314 of 3383
CAN SYSTEM (TYPE 1)LAN-45
[CAN]
C
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F
G H
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B
LAN
Revision: November 2009 2006 QX56
Case 4
Check ECM circuit. Refer to LAN-128, "ECM Circuit Inspection" .
PKIC3277E
PKIC2784E
Page 2315 of 3383
LAN-46
[CAN]
CAN SYSTEM (TYPE 1)
Revision: November 20092006 QX56
Case 5
Check TCM circuit. Refer to LAN-129, "TCM Circuit Inspection" .
PKIC3278E
PKIC2785E
Page 2316 of 3383
CAN SYSTEM (TYPE 1)LAN-47
[CAN]
C
DE
F
G H
I
J
L
M A
B
LAN
Revision: November 2009 2006 QX56
Case 6
Check driver seat control unit circuit. Refer to LAN-130, "Driver Seat Control Unit Circuit Inspection" .
PKIC3279E
PKIC2786E
Page 2317 of 3383
LAN-48
[CAN]
CAN SYSTEM (TYPE 1)
Revision: November 20092006 QX56
Case 7
Check combination meter circuit. Refer to LAN-131, "Combination Meter Circuit Inspection" .
PKIC3280E
PKIC2787E
Page 2318 of 3383
CAN SYSTEM (TYPE 1)LAN-49
[CAN]
C
DE
F
G H
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M A
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LAN
Revision: November 2009 2006 QX56
Case 8
Check display control unit circuit. Refer to LAN-131, "Display Control Unit Circuit Inspection" .
PKIC3281E
PKIC2788E
Page 2319 of 3383
LAN-50
[CAN]
CAN SYSTEM (TYPE 1)
Revision: November 20092006 QX56
Case 9
Check BCM circuit. Refer to LAN-132, "BCM Circuit Inspection" .
PKIC3282E
PKIC2789E
Page 2320 of 3383
CAN SYSTEM (TYPE 1)LAN-51
[CAN]
C
DE
F
G H
I
J
L
M A
B
LAN
Revision: November 2009 2006 QX56
Case 10
Check data link connector circuit. Refer to LAN-132, "Data Link Connector Circuit Inspection" .
PKIC3283E
PKIC2790E