2008 INFINITI QX56 diagram

LAN
ICC BRANCH LINE CIRCUITLAN-73
< COMPONENT DIAGNOSIS > [CAN]
C
D
E
F
G H
I
J
K L
B A
O P
N
ICC BRANCH LINE CIRCUIT
Diagnosis ProcedureINFOID:0000000001282450
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-47, "
Wiring Diagram".
Is the inspection result normal?
YES (Present error)>>Replace the ICC unit. Refer to CCS-70, "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: March 2010 2008 QX56

MIR-1
DRIVER CONTROLS
C
DE
F
G H
I
J
K
M
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
REMOVAL AND INSTALLA TION ...............10
INSIDE MIRROR ...............................................10
Removal and Installation ..................................... ....10
DOOR MIRROR ................................................11
Door Mirror Assembly ..............................................11
Door Mirror Glass ....................................................12
Mirror Actuator .........................................................13
Revision: March 2010 2008 QX56

MIR-2
< COMPONENT DIAGNOSIS >
DOOR MIRROR
COMPONENT DIAGNOSIS
DOOR MIRROR
Wiring DiagramINFOID:0000000001737087
AWLWA0021GB
Revision: March 20102008 QX56

INSIDE MIRRORMIR-5
< COMPONENT DIAGNOSIS >
C
DE
F
G H
I
J
K
M A
B
MIR
N
O P
INSIDE MIRROR
Wiring DiagramINFOID:0000000001737088
AWLWA0019GB
Revision: March 2010 2008 QX56

MWI
MWI-1
DRIVER INFORMATION & MULTIMEDIA
C
DE
F
G H
I
J
K L
M B
SECTION MWI
A
O P
CONTENTS
METER, WARNING LAMP & INDICATOR
BASIC INSPECTION ....... .............................4
DIAGNOSIS AND REPAIR WORKFLOW ..... .....4
Work Flow ........................................................... ......4
FUNCTION DIAGNOSIS ...............................5
METER SYSTEM ............................................ .....5
METER SYSTEM .........................................................5
METER SYSTEM : System Diagram ........................5
METER SYSTEM : System Description ....................5
METER SYSTEM : Arrangem ent of Combination
Meter ................................................................... ......
6
METER SYSTEM : Component Parts Location ........7
METER SYSTEM : Component Description ....... ......7
SPEEDOMETER ..........................................................8
SPEEDOMETER : System Diagram ................... ......8
SPEEDOMETER : System Description .....................8
SPEEDOMETER : Component Parts Location .........9
SPEEDOMETER : Component Description ........ ......9
TACHOMETER ...................................................... ......9
TACHOMETER : System Diagram ...........................9
TACHOMETER : System De scription .....................10
TACHOMETER : Component Parts Location ..... ....10
TACHOMETER : Component Description ..............10
ENGINE COOLANT TEMPERATURE GAUGE .... ....10
ENGINE COOLANT TEMPERATURE GAUGE :
System Diagram ......................................................
11
ENGINE COOLANT TEMPERATURE GAUGE :
System Description .................................................
11
ENGINE COOLANT TEMPERATURE GAUGE :
Component Parts Location ......................................
11
ENGINE COOLANT TEMPERATURE GAUGE :
Component Description ...........................................
12
FUEL GAUGE ........................................................ ....12
FUEL GAUGE : System Diagram ...........................12
FUEL GAUGE : System Description .......................12
FUEL GAUGE : Component Parts Location ...........12
FUEL GAUGE : Component Description ............. ....13
ENGINE OIL PRESSURE GAUGE ............................13
ENGINE OIL PRESSURE GAUGE : System Dia-
gram .................................................................... ....
13
ENGINE OIL PRESSURE GAUGE : System De-
scription ...................................................................
13
ENGINE OIL PRESSURE GAUGE : Component
Parts Location ..........................................................
14
ENGINE OIL PRESSURE GAUGE : Component
Description ...............................................................
14
VOLTAGE GAUGE ................................................ ....14
VOLTAGE GAUGE : System Diagram ....................15
VOLTAGE GAUGE : System Description ................15
VOLTAGE GAUGE : Component Parts Location ....15
VOLTAGE GAUGE : Component Description .........16
ODO/TRIP METER ................................................. ....16
ODO/TRIP METER : System Diagram ....................16
ODO/TRIP METER : System Description ................16
ODO/TRIP METER : Component Parts Location ....16
ODO/TRIP METER : Component Description .........17
SHIFT POSITION INDICATOR .............................. ....17
SHIFT POSITION INDICATOR : System Diagram ....17
SHIFT POSITION INDICATOR : System Descrip-
tion ...........................................................................
17
SHIFT POSITION INDICATOR : Component
Parts Location ..........................................................
18
SHIFT POSITION INDICATOR : Component De-
scription ............................................................... ....
18
WARNING LAMPS/INDICATOR LAMPS .............. ....18
WARNING LAMPS/INDICATOR LAMPS : System
Diagram ............................................................... ....
18
WARNING LAMPS/INDICATOR LAMPS : System
Description ........................................................... ....
19
WARNING LAMPS/INDICATOR LAMPS : Com-
ponent Parts Location ..............................................
19
WARNING LAMPS/INDICATOR LAMPS : Com-
ponent Description ...................................................
19
Revision: March 2010 2008 QX56

MWI-2
INFORMATION DISPLAY .........................................19
INFORMATION DISPLAY : System Diagram .........20
INFORMATION DISPLAY : System Description ....20
INFORMATION DISPLAY : Component Parts Lo-
cation ................................................................... ...
21
INFORMATION DISPLAY : Component Descrip-
tion ....................................................................... ...
21
COMPASS .........................................................22
Description ........................................................... ...22
DIAGNOSIS SYSTEM (METER) .......................24
Diagnosis Description .......................................... ...24
CONSULT-III Function (METER/M&A) ................ ...25
COMPONENT DIAGNOSIS ........................28
DTC U1000 CAN COMMUNICATION ............ ...28
DTC Logic ............................................................ ...28
Diagnosis Procedure .............................................28
DTC B2205 VEHICLE SPEED CIRCUIT ...........29
Description ........................................................... ...29
DTC Logic ...............................................................29
Diagnosis Procedure .............................................29
POWER SUPPLY AND GROUND CIRCUIT .....30
COMBINATION METER ........................................ ...30
COMBINATION METER : Diagnosis Procedure ....30
BCM (BODY CONTROL MODULE) ...................... ...30
BCM (BODY CONTROL MODULE) : Diagnosis
Procedure ...............................................................
31
IPDM E/R (INTELLIGENT POWER DISTRIBU-
TION MODULE ENGINE ROOM) .......................... ...
31
IPDM E/R (INTELLIGENT POWER DISTRIBU-
TION MODULE ENGINE ROOM) : Diagnosis Pro-
cedure .....................................................................
31
FUEL LEVEL SENSOR SIGNAL CIRCUIT .......33
Description ........................................................... ...33
Component Function Check ...................................33
Diagnosis Procedure .............................................33
Component Inspection ............................................34
OIL PRESSURE SWITCH SIGNAL CIRCUIT ...35
Description ..............................................................35
Component Function Check ...................................35
Diagnosis Procedure ..............................................35
Component Inspection ............................................35
PARKING BRAKE SWITCH SIGNAL CIR-
CUIT ...................................................................
36
Description ........................................................... ...36
Component Function Check ...................................36
Diagnosis Procedure ..............................................36
Component Inspection ............................................36
WASHER LEVEL SWITCH SIGNAL CIRCUIT ...37
Description ........................................................... ...37
Diagnosis Procedure ............................................ ...37
Component Inspection ............................................37
COMPASS .........................................................38
Wiring Diagram .................................................... ...38
CLOCK ..............................................................40
Wiring Diagram .................................................... ...40
ECU DIAGNOSIS .......................................42
COMBINATION METER ................................. ...42
Reference Value .................................................. ...42
Wiring Diagram .......................................................44
Fail Safe ..................................................................61
DTC Index ...............................................................62
BCM (BODY CONTROL MODULE) ..................64
Reference Value .................................................. ...64
Terminal Layout ......................................................64
Physical Values .......................................................64
Wiring Diagram .......................................................64
DTC Inspection Priority Chart ...............................64
DTC Index ..............................................................64
IPDM E/R (INTELLIGENT POWER DISTRI-
BUTION MODULE ENGINE ROOM) .................
65
Reference Value .................................................. ...65
Terminal Layout ......................................................65
Physical Values .......................................................65
Wiring Diagram .......................................................65
Fail Safe .................................................................65
DTC Index ..............................................................65
SYMPTOM DIAGNOSIS ............................66
THE FUEL GAUGE POINTER DOES NOT
MOVE .............................................................. ...
66
Description ........................................................... ...66
Diagnosis Procedure ...............................................66
THE FUEL GAUGE POINTER DOES NOT
MOVE TO "F" WHEN REFUELING ..................
67
Description ........................................................... ...67
Diagnosis Procedure ...............................................67
THE OIL PRESSURE WARNING LAMP
DOES NOT TURN ON .................................... ...
68
Description ........................................................... ...68
Diagnosis Procedure ...............................................68
THE OIL PRESSURE WARNING LAMP
DOES NOT TURN OFF .................................. ...
69
Description ........................................................... ...69
Diagnosis Procedure ...............................................69
THE PARKING BRAKE RELEASE WARNING
CONTINUES DISPLAYING, OR DOES NOT
DISPLAY ............................................................
70
Description ........................................................... ...70
Diagnosis Procedure ...............................................70
Revision: March 2010 2008 QX56

MWI
METER SYSTEMMWI-5
< FUNCTION DIAGNOSIS >
C
DE
F
G H
I
J
K L
M B A
O P
FUNCTION DIAGNOSIS
METER SYSTEM
METER SYSTEM
METER SYSTEM : System DiagramINFOID:0000000001691233
METER SYSTEM : System DescriptionINFOID:0000000001691234
COMBINATION METER
• Speedometer, odo/trip meter, tachometer, fuel gauge, engine coolant temperature gauge, engine oil pres-
sure gauge, voltage gauge and information display are controlled by the unified meter control unit, which is
built into the combination meter.
• Warning and indicator lamps are controlled by the unified meter control unit and by components connected directly to the combination meter.
• Digital meter is adopted for odo/trip meter.* *The record of the odometer is kept even if the battery cable is disconnected. The record of the trip meter is
erased when the battery cable is disconnected.
• Odo/trip meter segments can be checked in diagnosis mode.
• Meter/gauge can be checked in diagnosis mode.
AWNIA0274GB
Revision: March 2010 2008 QX56

MWI-8
< FUNCTION DIAGNOSIS >
METER SYSTEM
SPEEDOMETER
SPEEDOMETER : System DiagramINFOID:0000000001691238
SPEEDOMETER : System DescriptionINFOID:0000000001691239
The ABS actuator and electric unit (control unit) provides a vehicle speed signal to the combination meter via
CAN communication lines.
ABS actuator and electric unit
(control unit) Transmits the vehicle speed signal to the combination meter with CAN communication line.
BCM • Transmits signals provided by various units to the combination meter with CAN communication
line.
• Transmits the security signal to the combination meter.
TCM • Transmits shift position signal to the combination meter with CAN communication line.
• Transmits A/T oil temperature signal to the combination meter with CAN communication line.
Washer level switch Transmits the washer level signal to the combination meter.
Brake fluid level switch Transmits the brake fluid level switch signal to the combination meter.
Parking brake switch Refer to MWI-36, "
Description".
Unit
Description
WKIA5370E
Revision: March 2010 2008 QX56