2009 INFINITI QX56 Factory Service Manual

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Page 2649 of 4171

INFINITI QX56 2009 Factory Service Manual LAN-80
< COMPONENT DIAGNOSIS >[CAN]
M&A BRANCH LINE CIRCUIT
M&A BRANCH LINE CIRCUIT
Diagnosis ProcedureINFOID:0000000003776480
INSPECTION PROCEDURE
1.CHECK CONNECTOR
1. Turn the ignition switch OFF.
2

Page 2650 of 4171

INFINITI QX56 2009 Factory Service Manual LAN
STRG BRANCH LINE CIRCUITLAN-81
< COMPONENT DIAGNOSIS > [CAN]
C
D
E
F
G H
I
J
K L
B A
O P
N
STRG BRANCH
LINE CIRCUIT
Diagnosis ProcedureINFOID:0000000003776481
INSPECTION PROCEDURE
1.CHECK CONNECT

Page 2651 of 4171

INFINITI QX56 2009 Factory Service Manual LAN-82
< COMPONENT DIAGNOSIS >[CAN]
4WD BRANCH LINE CIRCUIT
4WD BRANCH LINE CIRCUIT
Diagnosis ProcedureINFOID:0000000003776482
1.CHECK CONNECTOR
1. Turn the ignition switch OFF.
2. Disconnect the batt

Page 2652 of 4171

INFINITI QX56 2009 Factory Service Manual LAN
ABS BRANCH LINE CIRCUITLAN-83
< COMPONENT DIAGNOSIS > [CAN]
C
D
E
F
G H
I
J
K L
B A
O P
N
ABS BRANCH LINE CIRCUIT
Diagnosis ProcedureINFOID:0000000003776483
1.CHECK CONNECTOR
1. Turn the ignition

Page 2653 of 4171

INFINITI QX56 2009 Factory Service Manual LAN-84
< COMPONENT DIAGNOSIS >[CAN]
IPDM-E BRANCH LINE CIRCUIT
IPDM-E BRANCH LINE CIRCUIT
Diagnosis ProcedureINFOID:0000000003776484
INSPECTION PROCEDURE
1.CHECK CONNECTOR
1. Turn the ignition switch

Page 2654 of 4171

INFINITI QX56 2009 Factory Service Manual LAN
CAN COMMUNICATION CIRCUITLAN-85
< COMPONENT DIAGNOSIS > [CAN]
C
D
E
F
G H
I
J
K L
B A
O P
N
CAN COMMUNICATION CIRCUIT
Diagnosis ProcedureINFOID:0000000003776485
1.CONNECTOR INSPECTION
1. Turn the

Page 2655 of 4171

INFINITI QX56 2009 Factory Service Manual LAN-86
< COMPONENT DIAGNOSIS >[CAN]
CAN COMMUNICATION CIRCUIT
Inspection result
Reproduced>>GO TO 6.
Non-reproduced>>Start the diagnosis again. Follow
the trouble diagnosis procedure when past error

Page 2656 of 4171

INFINITI QX56 2009 Factory Service Manual LU-1
ENGINE
C
DE
F
G H
I
J
K L
M
SECTION LU
A
LU
N
O P
CONTENTS
ENGINE LUBRICATION SYSTEM
PRECAUTION ....... ........................................2
PRECAUTIONS .....................................

LU-1
ENGINE
C
DE
F
G H
I
J
K L
M
SECTION LU
A
LU
N
O P
CONTENTS
ENGINE LUBRICATION SYSTEM
PRECAUTION ....... ........................................2
PRECAUTIONS .............................................. .....2
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ......
2
Precaution Necessary for Steering Wheel Rota-
tion After Battery Disconnect ............................... ......
2
Precaution for Liquid Gasket .....................................3
PREPARATION ............................................4
PREPARATION .............................................. .....4
Special Service Tool ........................................... ......4
Commercial Service Tool ..........................................4
FUNCTION DIAGNOSIS ...............................6
LUBRICATION SYSTEM ............................... .....6
Lubrication Circuit ............................................... ......6
Schematic .................................................................7
ON-VEHICLE MAINTENANCE .....................8
ENGINE OIL ................................................... .....8
Inspection ............................................................ ......8
Changing Engine Oil ............................................ .....9
OIL FILTER .......................................................11
Removal and Installation .........................................11
ON-VEHICLE REPAIR .................................12
OIL COOLER ....................................................12
Exploded View ..................................................... ....12
Removal and Installation .........................................12
OIL PUMP .........................................................14
Exploded View .........................................................14
Removal and Installation .........................................14
DISASSEMBLY AND ASSEMBLY ..............16
OIL PUMP .........................................................16
Disassembly and Assembly ................................. ....16
SERVICE DATA AND SPECIFICATIONS
(SDS) ............... .......................................... ...
18
SERVICE DATA AND SPECIFICATIONS
(SDS) .................................................................
18
Standard and Limit .............................................. ....18
Revision: December 20092009 QX56

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