2011 INFINITI QX56 turn signal

MIR-34
< REMOVAL AND INSTALLATION >
OUTSIDE MIRROR
2. Disconnect harness connector (B), and remove screws (C)and pawl (D) fixing the side camera finisher (1) to housing.
3. Remove side turn signal lamp fixing screws (E), and then remove side turn signal lamp.
NOTE:
Pull slightly side camera finisher (1) covering side turn sig-
nal lamp bottom screw.
4. Remove side camera finisher assembly.
5. Remove around view camera. Refer to AV-233, "
Removal and Installation".
6. Remove all the harness connector terminal from the connector. NOTE:
Write a short note to describe connector terminal layout before starting operation.
7. Remove base. 1. Remove base cover. Remove base cover fixing pawls with a flat-bladed screw-
driver (A) wrapped into a tape.
CAUTION:
Apply protective tape (B) aro und the base to protect the
surface from damage.
2. Remove puddle lamp. Refer to INL-79, "
Removal and Installation".
3. Remove base mounting bolts located under base cover.
4. Remove base.
8. Remove the fixing screws (A), and then remove power fold unit and bracket from housing.
JMLIA0913ZZ
JMLIA0914ZZ
: Pawl
JMLIA1146ZZ
JMLIA0923ZZ
Revision: 2010 May2011 QX56

OUTSIDE MIRRORMIR-37
< REMOVAL AND INSTALLATION >
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6. Remove side turn signal lamp fixing screws (E) and remove side turn signal lamp.
NOTE:
Pull slightly side camera finisher (1) covering side turn signal
lamp bottom screw.
7. Remove side camera finisher assembly.
8. Remove around view camera. Refer to AV-233, "
Removal and Installation".
Assembly
Assemble in the reverse order of disassembly.
JMLIA0914ZZ
Revision: 2010 May2011 QX56

MWI-2
DIAGNOSIS SYSTEM (COMBINATION
METER) ..............................................................
29
On Board Diagnosis Function .............................. ...29
CONSULT-III Function ...........................................30
ECU DIAGNOSIS INFORMATION ..............35
COMBINATION METER ................................. ...35
Reference Value .................................................. ...35
Fail-Safe .................................................................42
DTC Index ..............................................................43
IPDM E/R ...........................................................44
List of ECU Reference ......................................... ...44
WIRING DIAGRAM .....................................45
METER SYSTEM ............................................ ...45
Wiring Diagram .................................................... ...45
CLOCK ...............................................................55
Wiring Diagram .................................................... ...55
BASIC INSPECTION ...................................57
DIAGNOSIS AND REPAIR WORKFLOW
(METER SYSTEM ) .......................................... ...
57
Work flow ............................................................. ...57
DTC/CIRCUIT DIAGNOSIS ...................... ...59
U1000 CAN COMM CIRCUIT ......................... ...59
Description ........................................................... ...59
DTC Logic ...............................................................59
Diagnosis Procedure .............................................59
U1010 CONTROL UNIT (CAN) .........................60
Description ........................................................... ...60
DTC Logic ...............................................................60
Diagnosis Procedure ..............................................60
B2205 VEHICLE SPEED ...................................61
Description ........................................................... ...61
DTC Logic ...............................................................61
Diagnosis Procedure .............................................61
B2267 ENGINE SPEED .....................................62
Description ........................................................... ...62
DTC Logic ...............................................................62
Diagnosis Procedure ..............................................62
B2268 WATER TEMP ........................................63
Description ........................................................... ...63
DTC Logic ...............................................................63
Diagnosis Procedure ..............................................63
POWER SUPPLY AND GROUND CIRCUIT .....64
COMBINATION METER ........................................ ...64
COMBINATION METER : Diagnosis Procedure ....64
TRIP RESET AND ILLUMINATION CON-
TROL SWITCH SIGNAL CIRCUIT ....................
65
Diagnosis Procedure ............................................ ...65
Component Inspection ............................................66
TRIP COMPUTER SWITCH SIGNAL CIRCUIT
...
67
Diagnosis Procedure ............................................ ...67
Component Inspection ............................................68
FUEL LEVEL SENSOR SIGNAL CIRCUIT .......69
Component Function Check ................................ ...69
Diagnosis Procedure ..............................................69
Component Inspection ............................................70
OIL PRESSURE SWITCH SIGNAL CIRCUIT ...71
Component Function Check ...................................71
Diagnosis Procedure ...............................................71
Component Inspection ............................................71
WASHER LEVEL SWITCH SIGNAL CIRCUIT ...73
Diagnosis Procedure ............................................ ...73
Component Inspection ............................................73
A/C AUTO AMP. CONNECTION RECOGNI-
TION SIGNAL CIRCUIT ....................................
74
Diagnosis Procedure ........................................... ...74
SYMPTOM DIAGNOSIS ............................75
THE FUEL GAUGE INDICATOR DOES NOT
OPERATE ....................................................... ...
75
Description ........................................................... ...75
Diagnosis Procedure ...............................................75
THE TRIP RESET AND ILLUMINATION CON-
TROL SWITCH IS INOPERATIVE ....................
76
Description ........................................................... ...76
Diagnosis Procedure ...............................................76
THE TRIP COMPUTER SWITCH IS INOPER-
ATIVE .................................................................
77
Description ........................................................... ...77
Diagnosis Procedure ...............................................77
THE OIL PRESSURE WARNING LAMP
DOES NOT TURN ON .................................... ...
78
Description ........................................................... ...78
Diagnosis Procedure ...............................................78
THE OIL PRESSURE WARNING LAMP
DOES NOT TURN OFF .................................. ...
79
Description ........................................................... ...79
Diagnosis Procedure ...............................................79
THE PARKING BRAKE RELEASE WARNING
CONTINUES DISPLAYING, OR DOES NOT
DISPLAY ............................................................
80
Description ........................................................... ...80
Diagnosis Procedure ...............................................80
Revision: 2010 May2011 QX56

MWI-10
< SYSTEM DESCRIPTION >
SYSTEM
System Description Reference
Measuring in-
struments Speedometer Indicates vehicle speed.
MWI-13,
"SPEEDOME-
TER : System De-
scription"
Tachometer Indicates engine speed.MWI-14, "
TA -
CHOMETER :
System Descrip-
tion"
Engine coolant temperature gauge Indicates engine coolant temperature.MWI-14, "
EN-
GINE COOLANT
TEMPERATURE
GAUGE : System
Description"
Fuel gauge Indicates fuel level.
MWI-14, "
FUEL
GAUGE : System
Description"
Engine oil pressure gauge Indicates engine oil pressure.MWI-15, "
EN-
GINE OIL PRES-
SURE GAUGE :
System Descrip-
tion"
Voltmeter Indicates voltage of ignition signal.
MWI-15, "
VOLT-
METER : System
Description"
Warning lamp/
indicator lampOil pressure warning lamp
The warning lamp turns ON or turns OFF,
according to engine hydraulic pressure.MWI-16, "
OIL
PRESSURE
WARNING LAMP
: System Descrip-
tion"
Master warning lamp
Turns ON/OFF in synchronization with a
warning indicated on the information display.MWI-16, "
MAS-
TER WARNING
LAMP : System
Description"
Meter illumi-
nation controlMeter illumination on/off control function
The meter illumination turns ON/OFF, ac-
cording to the status of ignition switch and a
cranking condition.
MWI-16, "
METER
ILLUMINATION
CONTROL : Sys-
tem Description"Meter illumination control function Switch mode between daytime mode and
night time mode, according to a light switch
position or ambient brightness.
Meter effect
function Engine-start effect function
Controls pointers of combination meter and
meter illumination at engine start to produce
illumination effects.MWI-17, "
METER
EFFECT FUNC-
TION : System
Description"Driver welcome function
Controls meter illumination to produce illu-
mination effects when getting in the vehicle.
Revision: 2010 May2011 QX56

MWI
SYSTEMMWI-13
< SYSTEM DESCRIPTION >
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SPEEDOMETER
SPEEDOMETER : System DiagramINFOID:0000000006221696
SPEEDOMETER : System DescriptionINFOID:0000000006221697
 The ABS actuator and electric unit (control unit) conv erts the rectangular wave signal provided by the wheel
sensor to a vehicle speed signal and transmits it to the combination meter via CAN communication.
 The combination meter indicates the vehicle speed to the speedometer according to the vehicle speed sig-
nal received via CAN communication.
TACHOMETER
Warning lamp/indicator lamp ABS warning lamp
The lamp turns ON by suspending communication.
VDC warning lamp
Brake warning lamp
IBA OFF indicator lamp
4WD warning lamp
Malfunction indicator lamp
VDC OFF indicator lamp
CRUISE warning lamp
Low tire pressure warning lamp The lamp blinking caused by suspending communication.
High beam indicator lamp
The lamp turns OFF by suspending communication.
Turn signal indicator lamp
Tail lamp indicator lamp
A/T CHECK indicator lamp
Key warning lamp
AT P w a r n i n g l a m p
Lane departure warning lamp
LDP ON indicator lamp
CRUISE indicator lamp
Oil pressure warning lamp
SNOW mode indicator lamp
TOW mode indicator lamp
CK SUSP indicator lamp
BSW indicator lamp
Function Specifications
JSNIA2382GB
Revision: 2010 May2011 QX56

MWI-16
< SYSTEM DESCRIPTION >
SYSTEM
OIL PRESSURE WARNING LAMP : System Description
INFOID:0000000006221709
 IPDM E/R reads the ON/OFF signals fr om the oil pressure switch and transmits the oil pressure switch sig-
nal to the combination meter via BCM with the CAN communication.
 The combination meter turns the oil pressure warning lamp ON (at the time of a reduction in hydraulic pres-
sure)/OFF (except at the time of a reduction in hydraulic pressure) according to the oil pressure switch signal
received via CAN communication.
MASTER WARNING LAMP
MASTER WARNING LAMP : System DiagramINFOID:0000000006221710
MASTER WARNING LAMP : System DescriptionINFOID:0000000006221711
When receiving a signal from each unit, switch, or s ensor, the combination meter turns ON/OFF the master
warning lamp in synchronization with the following warnings on the information display:
 Door open warning
 Parking brake release warning
 Low fuel warning
 Low washer fluid warning
 NO KEY warning
NOTE:
For details on warnings displayed on the vehicle information display, refer to MWI-20, "
INFORMATION DIS-
PLAY : System Description".
METER ILLUMINATION CONTROL
METER ILLUMINATION CONTROL : System DiagramINFOID:0000000006221712
METER ILLUMINATION CONTRO L : System DescriptionINFOID:0000000006221713
METER ILLUMINATION ON/OFF CONTROL FUNCTION
 Combination meter turns ON meter illumination when the following condition is satisfied:
- Ignition switch ON
 Combination meter turns OFF meter illumination when any of the following condition is satisfied:
JSNIA3098GB
JSNIA3235GB
Revision: 2010 May2011 QX56

MWI-18
< SYSTEM DESCRIPTION >
SYSTEM
When recognizing an engine start, the combination meter controls the following items for producing the effect.
 Speedometer
 Tachometer
 Engine coolant temperature gauge
 Fuel gauge
 Engine oil pressure gauge
 Voltmeter
 Meter illumination
Meter and Illumination Operations During Engine-start Effect
The combination meter controls the following items during the engine-start effect.
NOTE:
The pointers are stopped and illumination is turned off while cranking the engine.
Engine Start Judgement
The combination meter judges “engine-start” and activates the engine-start effect only once when the follow-
ing operational conditions are all satisfied.
NOTE:
Engine-start effect exits when any of the above operat ional conditions is cancelled during the engine-start
effect.
Signal path
The combination meter judges “engine-start,” according to the following signals and activates the engine-start
effect function.
DRIVER WELCOME FUNCTION
Control item Operation
Speedometer Sweeps the pointer.
Tachometer Sweeps the pointer.
Engine coolant temperature gauge Stops the pointer.
Fuel gauge Stops the pointer.
Engine oil pressure gauge Stops the pointer.
Voltmeter Stops the pointer.
Meter illumination Pointers Turns on the illumination at the effect level.
Information display Turns on the illumination at the normal brightness level.
Other than those above Increases the brightness to the effect level in stages.
Condition
Ignition switch ON position
Vehicle speed Less than 1 km/h (0.6 MPH)
Engine state Other than the time of cranking the engine
500 rpm or more
Information display
(SETTING) The setting of “EFFECT” is “ON.”
Signal name Signal path
Ignition signal —
Starter relay status signal BCM Combination meter
Engine speed signal ECM Combination meter
Engine status signal
Vehicle speed signal ABS actuator and electric unit (control unit) Combination meter
Revision: 2010 May2011 QX56

MWI
SYSTEMMWI-19
< SYSTEM DESCRIPTION >
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BCM transmits a meter ring illumination request signal to the illumination meter when all the following opera-
tional conditions are satisfied. When receiving the meter ring illumination request signal from BCM via CAM
communication, the combination meter increases illuminat ion brightness of the combination meter to the set
brightness level in stages. After a certain period of time, the meter illumination gradually dims to be turned
OFF.
*: Close the driver side door with the intelligent key left inside the vehicle.
Timing Chart
INFORMATION DISPLAY
INFORMATION DISPLAY : System DiagramINFOID:0000000006221716
Operational condition
Ignition switch LOCK position
Driver door Open→Close
*
JSNIA3099GB
JSNIA2997GB
Revision: 2010 May2011 QX56