2011 INFINITI QX56 Factory Service Manual

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Page 3649 of 5598

INFINITI QX56 2011 Factory Service Manual
LAN
CAN COMMUNICATION CIRCUIT 1LAN-229
< DTC/CIRCUIT DIAGNOSIS > [CAN SYSTEM (TYPE 4)]
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5.CHECK SYMPTOM
Connect all the connectors. Check if the symptoms descr ibed in th

Page 3650 of 5598

INFINITI QX56 2011 Factory Service Manual
LAN-230
< DTC/CIRCUIT DIAGNOSIS >[CAN SYSTEM (TYPE 4)]
CAN COMMUNICATION CIRCUIT 2
CAN COMMUNICATION CIRCUIT 2
Diagnosis ProcedureINFOID:0000000006256401
1.CONNECTOR INSPECTION
1. Turn the ignition s

Page 3651 of 5598

INFINITI QX56 2011 Factory Service Manual
LAN
CAN COMMUNICATION CIRCUIT 2LAN-231
< DTC/CIRCUIT DIAGNOSIS > [CAN SYSTEM (TYPE 4)]
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Non-reproduced>>Start the diagnosis again. Follow
the trouble diagnosis procedure

Page 3652 of 5598

INFINITI QX56 2011 Factory Service Manual
LAN-232
< DTC/CIRCUIT DIAGNOSIS >[CAN SYSTEM (TYPE 4)]
ITS COMMUNICATION CIRCUIT
ITS COMMUNICATION CIRCUIT
Diagnosis ProcedureINFOID:0000000006256402
1.CHECK CAN DIAGNOSIS
Check the CAN diagnosis res

LAN-232
< DTC/CIRCUIT DIAGNOSIS >[CAN SYSTEM (TYPE 4)]
ITS COMMUNICATION CIRCUIT
ITS COMMUNICATION CIRCUIT
Diagnosis ProcedureINFOID:0000000006256402
1.CHECK CAN DIAGNOSIS
Check the CAN diagnosis results from CONSULT-III to see that the CAN communication circuit 1 and CAN
communication circuit 2 have no malfunction.
NOTE:
For identification of CAN communication circuit 1, CAN communication circuit 2, and ITS communication cir-
cuit, refer to LAN-57, "
System Diagram".
Are the CAN communication 1 and CAN communication 2 circuits normal?
YES >> GO TO 2.
NO >> Check and repair CAN communication circuit 1 and/or CAN communication circuit 2.
2.CONNECTOR INSPECTION
1. Turn the ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Check the following terminals and connectors fo r damage, bend and loose connection (unit side and con-
nector side).
- ADAS control unit
- Harness connector B63
- Harness connector B239
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair the terminal and connector.
3.CHECK HARNESS CONTI NUITY (OPEN CIRCUIT)
1. Disconnect the following harness connectors.
- ADAS control unit
- ICC sensor
2. Check the continuity between the ADAS control unit harness connector and the ICC sensor harness con-
nector.
Is the inspection result normal?
YES >> GO TO 4.
NO >> Repair the ADAS control unit branch line. (ITS communication circuit). Refer to LAN-57, "
System
Diagram".
4.CHECK HARNESS CONTINUITY (SHORT CIRCUIT)
1. Disconnect the following harness connectors.
- Side radar RH
- Side radar LH
- Lane camera unit
- Accelerator pedal actuator
2. Check the continuity between the ADAS control unit harness connector terminals.
Is the inspection result normal?
YES >> GO TO 5.
NO >> Check the harness and repair the root cause.
ADAS control unit harness connector ICC sensor harness connector Continuity
Connector No. Terminal No. Connector No. Terminal No.
B61 7
E65 3 Existed
86Existed
ADAS control unit harness connector Continuity
Connector No. Terminal No.
B61 7 8 Not existed
Revision: 2010 May2011 QX56

Page 3653 of 5598

INFINITI QX56 2011 Factory Service Manual
LAN
ITS COMMUNICATION CIRCUITLAN-233
< DTC/CIRCUIT DIAGNOSIS > [CAN SYSTEM (TYPE 4)]
C
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5.CHECK HARNESS CONTINUI
TY (SHORT CIRCUIT)
Check the continuity between the ADAS c

LAN
ITS COMMUNICATION CIRCUITLAN-233
< DTC/CIRCUIT DIAGNOSIS > [CAN SYSTEM (TYPE 4)]
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5.CHECK HARNESS CONTINUI
TY (SHORT CIRCUIT)
Check the continuity between the ADAS control unit harness connector and the ground.
Is the inspection result normal?
YES >> GO TO 6.
NO >> Check the harness and repair the root cause.
6.CHECK TERMINATION CIRCUIT
1. Remove the ADAS control unit and the ICC sensor.
2. Check the resistance between t he ADAS control unit terminals.
3. Check the resistance between the ICC sensor terminals.
Is the inspection result normal?
YES >> GO TO 7.
NO >> Replace the ADAS control unit and/or the ICC sensor.
7.CHECK SYMPTOM
Connect all the connectors. Check if the symptoms descr ibed in the “Symptom (Results from interview with
customer)” are reproduced.
Inspection result
Reproduced>>GO TO 8.
Non-reproduced>>Start the diagnosis again. Follow the trouble diagnosis procedure when past error is
detected.
8.CHECK UNIT REPRODUCTION
Perform the reproduction test as per the following procedure for each unit.
1. Turn the ignition switch OFF.
2. Disconnect the battery cabl e from the negative terminal.
3. Disconnect one of the unit connectors of ITS communication circuit.
NOTE:
ADAS control unit and ICC sensor have a termi nation circuit. Check other units first.
4. Connect the battery cable to the negative terminal. Check if the symptoms described in the “Symptom
(Results from interview with customer)” are reproduced.
NOTE:
Although unit-related error symptoms occur, do not confuse them with other symptoms.
Inspection result
Reproduced>>Connect the connector. Check other units as per the above procedure.
Non-reproduced>>Replace the unit whose connector was disconnected.
ADAS control unit harness connector
GroundContinuity
Connector No. Terminal No.
B61 7 Not existed
8 Not existed
ADAS control unit
Resistance (Ω)
Te r m i n a l N o .
7 8 Approx. 108 – 132
ICC sensor Resistance (Ω)
Te r m i n a l N o .
3 6 Approx. 108 – 132
Revision: 2010 May2011 QX56

Page 3654 of 5598

INFINITI QX56 2011 Factory Service Manual
LU-1
ENGINE
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SECTION LU
A
LU
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CONTENTS
ENGINE LUBRICATION SYSTEM
PRECAUTION ................ ...............................2
PRECAUTIONS ....................................

LU-1
ENGINE
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SECTION LU
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LU
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CONTENTS
ENGINE LUBRICATION SYSTEM
PRECAUTION ................ ...............................2
PRECAUTIONS .............................................. .....2
Liquid Gasket ..................................................... ......2
PREPARATION ............................................3
PREPARATION .............................................. .....3
Special Service Tool ........................................... ......3
Commercial Service Tool ..........................................3
SYSTEM DESCRIPTION ..............................5
LUBRICATION SYSTEM ............................... .....5
Engine Lubrication System ................................. ......5
Engine Lubrication System Schematic ......................6
PERIODIC MAINTENANCE ..........................7
ENGINE OIL ................................................... .....7
Inspection ............................................................ ......7
Draining .....................................................................8
Refilling .....................................................................8
OIL FILTER .........................................................9
Removal and Installation ..................................... ......9
Inspection ............................................................ .....9
REMOVAL AND INSTALLATION ...............11
OIL COOLER ....................................................11
Exploded View ..................................................... ....11
Removal and Installation .........................................11
Inspection ................................................................12
OIL PUMP .........................................................13
Exploded View .........................................................13
Removal and Installation .........................................13
Disassembly and Assembly .....................................14
Inspection ................................................................14
SERVICE DATA AND SPECIFICATIONS
(SDS) ............... .............................................
17
SERVICE DATA AND SPECIFICATIONS
(SDS) .................................................................
17
Periodical Maintenance Specification .................. ....17
Engine Oil Pressure ...............................................17
Oil Pump .................................................................17
Regulator Valve ......................................................17
Revision: 2010 May2011 QX56

Page 3655 of 5598

INFINITI QX56 2011 Factory Service Manual
LU-2
< PRECAUTION >
PRECAUTIONS
PRECAUTION
PRECAUTIONS
Liquid GasketINFOID:0000000006289611
LIQUID GASKET APPLICATION PROCEDURE
1. Remove old liquid gasket adhering to the liquid gasket application s

Page 3656 of 5598

INFINITI QX56 2011 Factory Service Manual
PREPARATIONLU-3
< PREPARATION >
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PREPARATION
PREPARATION
Special Service ToolINFOID:0000000006289612
Commercial Service ToolINFOID:0000000006289613
Tool number
(Kent-Moo

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