INFINITI QX56 2011 Factory Service Manual

LAN
CAN SYSTEM (WITHOUT ICC)LAN-51
< WIRING DIAGRAM > [CAN]
C
D
E
F
G H
I
J
K L
B A
O P
N
JCMWM8318GB
Revision: 2010 May2011 QX56

LAN-52
< WIRING DIAGRAM >[CAN]
CAN SYSTEM (WITHOUT ICC)
JCMWM8319GB
Revision: 2010 May2011 QX56

LAN
CAN SYSTEM (WITHOUT ICC)LAN-53
< WIRING DIAGRAM > [CAN]
C
D
E
F
G H
I
J
K L
B A
O P
N
JCMWM8320GB
Revision: 2010 May2011 QX56

LAN-54
< WIRING DIAGRAM >[CAN]
CAN SYSTEM (WITHOUT ICC)
JCMWM8321GB
Revision: 2010 May2011 QX56

LAN
CAN SYSTEM (WITHOUT ICC)LAN-55
< WIRING DIAGRAM > [CAN]
C
D
E
F
G H
I
J
K L
B A
O P
N
JCMWM8322GB
Revision: 2010 May2011 QX56

LAN-56
< BASIC INSPECTION >[CAN]
DIAGNOSIS AND REPAIR WORKFLOW
BASIC INSPECTION
DIAGNOSIS AND REPAIR WORKFLOW
Interview SheetINFOID:0000000006220535
SKIB8898E
Revision: 2010 May2011 QX56

LAN
MALFUNCTION AREA CHARTLAN-57
< DTC/CIRCUIT DIAGNOSIS > [CAN]
C
D
E
F
G H
I
J
K L
B A
O P
N
DTC/CIRCUIT DIAGNOSIS
MALFUNCTION AREA CHART
System DiagramINFOID:0000000006220536
CAN Communication CircuitINFOID:0000000006220537
MAIN LINE
BRANCH LINE
JSMIA0344GB
Malfunction area Reference
Main line between ABS actuator an d electric unit (control unit)
and data link connector LAN-60, "
Diagnosis Procedure"
Main line between data link connector and air levelizer control
moduleLAN-61, "Diagnosis Procedure"
Main line between air levelizer control module and driver seat
control unit (Without ICC system)
LAN-62, "Diagnosis Procedure"
Main line between driver seat control unit and automatic back
door control module (With ICC system)LAN-63, "Diagnosis Procedure"
Revision: 2010 May2011 QX56

LAN-58
< DTC/CIRCUIT DIAGNOSIS >[CAN]
MALFUNCTION AREA CHART
SHORT CIRCUIT
ITS Communication CircuitINFOID:0000000006220538
MAIN LINE
BRANCH LINE
Malfunction area Reference
ECM branch line circuit LAN-68, "
Diagnosis Procedure"
Transfer control unit branch line circuitLAN-69, "Diagnosis Procedure"
ABS actuator and electric unit (control unit) branch line circuit LAN-70, "Diagnosis Procedure"
TCM branch line circuit LAN-71, "Diagnosis Procedure"
Air bag diagnosis sensor unit branch line circuitLAN-72, "Diagnosis Procedure"
AFS control unit branch line circuitLAN-73, "Diagnosis Procedure"
AV control unit branch line circuitLAN-74, "Diagnosis Procedure"
BCM branch line circuitLAN-75, "Diagnosis Procedure"
CAN gateway branch line circuit (CAN communication circuit 1)LAN-76, "Diagnosis Procedure"
CAN gateway branch line circuit (CAN communication circuit 2)LAN-77, "Diagnosis Procedure"
Data link connector branch line circuitLAN-78, "Diagnosis Procedure"
A/C auto amp. branch line circuitLAN-79, "Diagnosis Procedure"
Combination meter branch line circuitLAN-80, "Diagnosis Procedure"
Steering angle sensor branch line circuitLAN-81, "Diagnosis Procedure"
Low tire pressure warning control unit branch line circuitLAN-82, "Diagnosis Procedure"
IPDM E/R branch line circuitLAN-83, "Diagnosis Procedure"
Driver seat control unit branch line circuitLAN-84, "Diagnosis Procedure"
Pre-crash seat belt control unit (driver side) branch line circuitLAN-85, "Diagnosis Procedure"
Air levelizer control module branch line circuitLAN-86, "Diagnosis Procedure"
ADAS control unit branch line circuitLAN-87, "Diagnosis Procedure"
Automatic back door control module branch line circuitLAN-88, "Diagnosis Procedure"
Malfunction area Reference
CAN communication circuit (Without ICC system) LAN-94, "
Diagnosis Procedure"
CAN communication circuit 1 (With ICC system)LAN-96, "Diagnosis Procedure"
CAN communication circuit 2 (With ICC system)LAN-98, "Diagnosis Procedure"
Malfunction area Reference
Main line between side radar RH and side radar LH LAN-64, "
Diagnosis Procedure"
Main line between side radar LH and lane camera unitLAN-65, "Diagnosis Procedure"
Main line between lane camera unit and accelerator pedal actu-
atorLAN-67, "Diagnosis Procedure"
Malfunction area Reference
Side radar RH branch line circuit LAN-89, "
Diagnosis Procedure"
Side radar LH branch line circuitLAN-90, "Diagnosis Procedure"
Lane camera unit branch line circuitLAN-91, "Diagnosis Procedure"
Accelerator pedal actuator branch line circuitLAN-92, "Diagnosis Procedure"
ICC sensor branch line circuitLAN-93, "Diagnosis Procedure"
Revision: 2010 May2011 QX56

LAN
MALFUNCTION AREA CHARTLAN-59
< DTC/CIRCUIT DIAGNOSIS > [CAN]
C
D
E
F
G H
I
J
K L
B A
O P
N
SHORT CIRCUIT OR OPEN CIRCUIT
Malfunction area Reference
ITS communication circuit LAN-100, "
Diagnosis Procedure"
Revision: 2010 May2011 QX56

LAN-60
< DTC/CIRCUIT DIAGNOSIS >[CAN]
MAIN LINE BETWEEN ABS AND DLC CIRCUIT
MAIN LINE BETWEEN
ABS AND DLC CIRCUIT
Diagnosis ProcedureINFOID:0000000006220539
1.CHECK CONNECTOR
1. Turn the ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Check the following terminals and connectors for damage, bend and loose connection (connector side and harness side).
- Harness connector E107
- Harness connector M82
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair the terminal and connector.
2.CHECK HARNESS CONTI NUITY (OPEN CIRCUIT)
1. Disconnect the following harness connectors.
- ABS actuator and electric unit (control unit)
- Harness connectors E107 and M82
2. Check the continuity between the ABS actuator and electric unit (control unit) harness connector and the
harness connector.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair the main line between the ABS actuat or and electric unit (control unit) and the harness
connector E107.
3.CHECK HARNESS CONTI NUITY (OPEN CIRCUIT)
Check the continuity between the harness connector and the data link connector.
Is the inspection result normal?
YES (Present error)>>Check CAN system type decision again.
YES (Past error)>>Error was detected in the main li ne between the ABS actuator and electric unit (control
unit) and the data link connector.
NO >> Repair the main line between the harness connector M82 and the data link connector.
ABS actuator and electric unit (control unit)
harness connector Harness connector
Continuity
Connector No. Terminal No. Connector No. Terminal No.
E36 41
E107 1 Existed
27 6 Existed
Harness connector Data link connector Continuity
Connector No. Terminal No. Connector No. Terminal No.
M82 1
M4 6 Existed
6 14 Existed
Revision: 2010 May2011 QX56