INFINITI QX56 2010 Factory Service Manual

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CAN COMMUNICATION SYSTEMLAN-53
< COMPONENT DIAGNOSIS > [CAN]
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Wiring Diagram - CAN SYSTEM -INFOID:0000000005146467
ABMWA0423GB
Revision: April 20092010 QX56

LAN-54
< COMPONENT DIAGNOSIS >[CAN]
CAN COMMUNICATION SYSTEM
AAMWA0130GB
Revision: April 20092010 QX56

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CAN COMMUNICATION SYSTEMLAN-55
< COMPONENT DIAGNOSIS > [CAN]
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AAMIA0012GB
Revision: April 20092010 QX56

LAN-56
< COMPONENT DIAGNOSIS >[CAN]
CAN COMMUNICATION SYSTEM
AAMIA0013GB
Revision: April 20092010 QX56

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CAN COMMUNICATION SYSTEMLAN-57
< COMPONENT DIAGNOSIS > [CAN]
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AAMIA0014GB
Revision: April 20092010 QX56

LAN-58
< COMPONENT DIAGNOSIS >[CAN]
CAN COMMUNICATION SYSTEM
AAMIA0015GB
Revision: April 20092010 QX56

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CAN COMMUNICATION SYSTEMLAN-59
< COMPONENT DIAGNOSIS > [CAN]
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AAMIA0016GB
Revision: April 20092010 QX56

LAN-60
< COMPONENT DIAGNOSIS >[CAN]
MALFUNCTION AREA CHART
MALFUNCTION AREA CHART
Main LineINFOID:0000000005146468
Branch LineINFOID:0000000005146469
Short CircuitINFOID:0000000005146470
Malfunction area
Reference
Main line between TCM and driver seat control unit LAN-61, "
Diagnosis Procedure"
Main line between TCM and ICC sensorLAN-63, "Diagnosis Procedure"
Main line between ICC sensor and ICC unitLAN-64, "Diagnosis Procedure"
Main line between ICC unit and driver seat control unitLAN-65, "Diagnosis Procedure"
Main line between driver seat control unit and AV control unitLAN-66, "Diagnosis Procedure"
Main line between AV control unit and data link connectorLAN-67, "Diagnosis Procedure"
Main line between data link connector and combination meterLAN-68, "Diagnosis Procedure"
Main line between combination meter and ABS actuator and
electric unit (control unit)LAN-69, "Diagnosis Procedure"
Main line between combination meter and transfer control unit
LAN-70, "Diagnosis Procedure"
Main line between transfer control unit and ABS actuator and
electric unit (control unit)LAN-71, "Diagnosis Procedure"
Malfunction area
Reference
ECM branch line circuit LAN-72, "
Diagnosis Procedure"
TCM branch line circuitLAN-73, "Diagnosis Procedure"
ICC sensor branch line circuitLAN-74, "Diagnosis Procedure"
ICC unit branch line circuitLAN-75, "Diagnosis Procedure"
Driver seat control unit branch line circuitLAN-76, "Diagnosis Procedure"
AV control unit branch line circuitLAN-77, "Diagnosis Procedure"
BCM branch line circuitLAN-78, "Diagnosis Procedure"
Data link connector branch line circuitLAN-79, "Diagnosis Procedure"
A/C auto amp. branch line circuitLAN-80, "Diagnosis Procedure"
Intelligent Key unit branch line circuitLAN-81, "Diagnosis Procedure"
Combination meter branch line circuitLAN-82, "Diagnosis Procedure"
Steering angle sensor branch line circuitLAN-83, "Diagnosis Procedure"
Transfer control unit branch line circuitLAN-84, "Diagnosis Procedure"
ABS actuator and electric unit (control unit) branch line circuit LAN-85, "Diagnosis Procedure"
IPDM E/R branch line circuit LAN-86, "Diagnosis Procedure"
Malfunction area Reference
CAN communication circuit LAN-87, "
Diagnosis Procedure"
Revision: April 20092010 QX56

LAN
MAIN LINE BETWEEN TCM AND ADP CIRCUITLAN-61
< COMPONENT DIAGNOSIS > [CAN]
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MAIN LINE BETWEEN TCM AND ADP CIRCUIT
Diagnosis ProcedureINFOID:0000000005146471
1.CHECK CONNECTOR
1. Turn the ignition switch OFF.
2. Disconnect the battery cabl e from the negative terminal.
3. Check the following terminals and connectors for damage, bend and loose connection (connector side
and harness side).
- Harness connector F14
- Harness connector E5
- Harness connector E34
- Harness connector B40
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 harness connectors F14 and E5.
2. Check the continuity between the harness connector terminals.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair the main line between the A/T assembly and the harness connector F14.
3.CHECK HARNESS CONTI NUITY (OPEN CIRCUIT)
1. Disconnect the harness connectors E34 and B40.
2. Check the continuity between the harness connectors.
Is the inspection result normal?
YES >> GO TO 4.
NO >> Repair the main line between the harness connectors E5 and E34.
4.CHECK HARNESS CONTI NUITY (OPEN CIRCUIT)
1. Disconnect the harness connectors B37 and B200.
2. Check the continuity between the harness connectors.
Is the inspection result normal?
YES (Present error)>>Check the following items again. • Decision of CAN system type.
• Not received CONSULT-III data [SELF-DIAG RESULTS, CAN DIAG SUPPORT MNTR (“ECU
list” included)].
• Procedure for detecting root cause.
YES (Past error)>>Error was detected in the main line between the TCM and the driver seat control unit.
Connector No. Terminal No. Continuity
F14 35E
xis te d
14 15Existed
Harness connector Harness connector
Continuity
Connector No. Terminal No.Connector No. Terminal No.
E5 5
E34 24
Existed
15 23Existed
Harness connector Harness connector
Continuity
Connector No. Terminal No.Connector No. Terminal No.
B40 24
B37 15
Existed
23 14Existed
Revision: April 20092010 QX56

LAN-62
< COMPONENT DIAGNOSIS >[CAN]
MAIN LINE BETWEEN TCM AND ADP CIRCUIT
NO >> Repair the main line between the harness connectors B40 and B37.
Revision: April 20092010 QX56