Page 2513 of 4210
INL-44
< COMPONENT DIAGNOSIS >
ILLUMINATION
ILLUMINATION
Wiring DiagramINFOID:0000000005146743
ABLWA0428GB
Revision: April 20092010 QX56
Page 2536 of 4210
BCM (BODY CONTROL MODULE)INL-67
< ECU DIAGNOSIS >
C
DE
F
G H
I
J
K
M A
B
INL
N
O P
Wiring DiagramINFOID:0000000005337697
ABMWA0374GB
Revision: April 20092010 QX56
Page 2599 of 4210

LAN
LAN-1
ELECTRICAL & POWER CONTROL
C
DE
F
G H
I
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K L
B
SECTION LAN
A
O P
N
CONTENTS
LAN SYSTEM
CAN FUNDAMENTAL
PRECAUTION ....... ........................................
3
PRECAUTIONS .............................................. .....3
Precaution for Trouble Diagnosis ........................ ......3
Precaution for Harness Repair ..................................3
FUNCTION DIAGNOSIS .. .............................4
CAN COMMUNICATION SYSTEM ................ .....4
System Description ............................................. ......4
System Diagram ........................................................4
CAN Communication Control Circuit .........................5
DIAG ON CAN .....................................................6
Description .......................................................... ......6
System Diagram ........................................................6
TROUBLE DIAGNOSIS ......................................7
Condition of Error Detection ................................ ......7
Symptom When Error Occurs in CAN Communi-
cation System ...................................................... ......
7
Self-Diagnosis .........................................................11
CAN Diagnostic Support Monitor ............................11
BASIC INSPECTION ...................................13
DIAGNOSIS AND REPAIR WORKFLOW ..... ....13
Information Needed for Trouble Diagnosis ......... ....13
How to Use CAN Communication Signal Chart ......13
Trouble Diagnosis Flow Chart .................................14
Trouble Diagnosis Procedure ..................................14
CAN
HOW TO USE THIS MANU AL .....................
36
HOW TO USE THIS SECTION ....................... ....36
Caution ................................................................ ....36
Abbreviation List ......................................................36
PRECAUTION ..............................................37
PRECAUTIONS .................................................37
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ....
37
Precautions for Trouble Diagnosis ..........................37
Precautions for Harness Repair ..............................37
BASIC INSPECTION ...................................39
DIAGNOSIS AND REPAIR WORKFLOW ........39
Interview Sheet .................................................... ....39
Diagnosis Sheet (CAN Type 1) ...............................40
Diagnosis Sheet (CAN Type 2) ...............................41
Diagnosis Sheet (CAN Type 3) ...............................42
Diagnosis Sheet (CAN Type 4) ...............................43
FUNCTION DIAGNOSIS ..............................44
CAN COMMUNICATION SYSTEM ...................44
CAN System Specification Chart ......................... ....44
CAN Communication Signal Chart ..........................44
TROUBLE DIAGNOSIS ....................................47
CAN Diagnostic Support Monitor .............................47
DTC Index ...............................................................51
COMPONENT DIAGNOSIS .........................52
CAN COMMUNICATION SYSTEM ...................52
Component Parts Location .................................. ....52
Wiring Diagram - CAN SYSTEM - ...........................53
MALFUNCTION AREA CHART ........................60
Main Line ............................................................. ....60
Branch Line .............................................................60
Short Circuit .............................................................60
MAIN LINE BETWEEN TCM AND ADP CIR-
CUIT ..................................................................
61
Diagnosis Procedure ...............................................61
Revision: April 20092010 QX56
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LAN
CAN COMMUNICATION SYSTEMLAN-53
< COMPONENT DIAGNOSIS > [CAN]
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E
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Wiring Diagram - CAN SYSTEM -INFOID:0000000005146467
ABMWA0423GB
Revision: April 20092010 QX56
Page 2672 of 4210
![INFINITI QX56 2010 Factory Service Manual LAN-74
< COMPONENT DIAGNOSIS >[CAN]
LASER BRANCH LINE CIRCUIT
LASER BRANCH LINE CIRCUIT
Diagnosis ProcedureINFOID:0000000005146481
1.CHECK CONNECTOR
1. Turn the ignition switch OFF.
2. Disconnect the INFINITI QX56 2010 Factory Service Manual LAN-74
< COMPONENT DIAGNOSIS >[CAN]
LASER BRANCH LINE CIRCUIT
LASER BRANCH LINE CIRCUIT
Diagnosis ProcedureINFOID:0000000005146481
1.CHECK CONNECTOR
1. Turn the ignition switch OFF.
2. Disconnect the](/manual-img/42/57032/w960_57032-2671.png)
LAN-74
< COMPONENT DIAGNOSIS >[CAN]
LASER BRANCH LINE CIRCUIT
LASER BRANCH LINE CIRCUIT
Diagnosis ProcedureINFOID:0000000005146481
1.CHECK CONNECTOR
1. Turn the ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Check the terminals and connectors of the ICC s ensor for damage, bend and loose connection (unit side
and connector side).
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair the terminal and connector.
2.CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect the connector of ICC sensor.
2. Check the resistance between the ICC sensor harness connector terminals.
Is the measurement value within the specification?
YES >> GO TO 3.
NO >> Repair the ICC sensor branch line.
3.CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of the ICC sensor. Refer to CCS-48, "
Wiring Diagram".
Is the inspection result normal?
YES (Present error)>>Replace the ICC sensor. Refer to CCS-72, "ICC Sensor".
YES (Past error)>>Error was detect ed in the ICC sensor branch line.
NO >> Repair the power supply and the ground circuit.
ICC sensor harness connector Resistance (Ω)
Connector No. Terminal No.
E42 23Approx. 54 – 66
Revision: April 20092010 QX56
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![INFINITI QX56 2010 Factory Service Manual LAN
ICC BRANCH LINE CIRCUITLAN-75
< COMPONENT DIAGNOSIS > [CAN]
C
D
E
F
G H
I
J
K L
B A
O P
N
ICC BRANCH LINE CIRCUIT
Diagnosis ProcedureINFOID:0000000005146482
1.CHECK CONNECTOR
1. Turn the ignition INFINITI QX56 2010 Factory Service Manual LAN
ICC BRANCH LINE CIRCUITLAN-75
< COMPONENT DIAGNOSIS > [CAN]
C
D
E
F
G H
I
J
K L
B A
O P
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ICC BRANCH LINE CIRCUIT
Diagnosis ProcedureINFOID:0000000005146482
1.CHECK CONNECTOR
1. Turn the ignition](/manual-img/42/57032/w960_57032-2672.png)
LAN
ICC BRANCH LINE CIRCUITLAN-75
< COMPONENT DIAGNOSIS > [CAN]
C
D
E
F
G H
I
J
K L
B A
O P
N
ICC BRANCH LINE CIRCUIT
Diagnosis ProcedureINFOID:0000000005146482
1.CHECK CONNECTOR
1. Turn the ignition switch OFF.
2. Disconnect the battery cabl e from the negative terminal.
3. Check the terminals and connectors of the ICC unit for damage, bend and loose connection (unit side and
connector side).
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair the terminal and connector.
2.CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect the connector of ICC unit.
2. Check the resistance between the ICC unit harness connector terminals.
Is the measurement value within the specification?
YES >> GO TO 3.
NO >> Repair the ICC unit branch line.
3.CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of the ICC unit. Refer to CCS-48, "
Wiring Diagram".
Is the inspection result normal?
YES (Present error)>>Replace the ICC unit. Refer to CCS-71, "ICC Unit".
YES (Past error)>>Error was detected in the ICC unit branch line.
NO >> Repair the power supply and the ground circuit.
ICC unit harness connector Resistance (Ω)
Connector No. Terminal No.
B13 14 5 Approx. 54 – 66
Revision: April 20092010 QX56
Page 2744 of 4210

MIR-1
DRIVER CONTROLS
C
DE
F
G H
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K
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SECTION MIR
A
B
MIR
N
O P
CONTENTS
MIRRORS
COMPONENT DIAGNOSIS ..........................2
DOOR MIRROR .............................................. .....2
Wiring Diagram ................................................... ......2
INSIDE MIRROR .................................................5
Wiring Diagram ................................................... ......5
PRECAUTION ...............................................8
PRECAUTIONS .............................................. .....8
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ......
8
Precaution Necessary for Steering Wheel Rota-
tion After Battery Disconnect ............................... ......
8
Handling for Adhesive and Primer ............................9
PREPARATION ...........................................10
PREPARATION .............................................. ....10
Special Service Tool ............................................ ....10
Commercial Service Tool ........................................10
REMOVAL AND INSTALLATION ...............11
INSIDE MIRROR ...............................................11
Wiring Diagram - I/MIRR - ................................... ....11
Removal and Installation .........................................12
DOOR MIRROR ................................................13
Wiring Diagram - MIRROR -Without Power Fold-
ing Mirrors ................................................................
13
Wiring Diagram - H/MIRR - ......................................15
Door Mirror Assembly ..............................................17
Door Mirror Glass ....................................................17
DISASSEMBLY AND ASSEMBLY ..............19
DOOR MIRROR ................................................19
Mirror Actuator ..................................................... ....19
Revision: April 20092010 QX56
Page 2745 of 4210
MIR-2
< COMPONENT DIAGNOSIS >
DOOR MIRROR
COMPONENT DIAGNOSIS
DOOR MIRROR
Wiring DiagramINFOID:0000000005146590
ABLWA0538GB
Revision: April 20092010 QX56