2011 INFINITI QX56 lock

SYSTEMMIR-9
< SYSTEM DESCRIPTION >
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 Changeover switch: Select either left or right
 A/T shift selector: R position
NOTE:
During the reverse interlock door mirror system, if all of the above conditions are not satisfied, mirror face
returns to original angle.
AUTO ANTI-DAZZLING INSIDE MIRROR SYSTEM
AUTO ANTI-DAZZLING INSIDE MIRRO R SYSTEM : System DescriptionINFOID:0000000006257224
The sensor built in inside mirror detects the bri ghtness of headlight of the vehicle behind and automatically
changes the light transmission to decrease the brightness.
Revision: 2010 May2011 QX56

REVERSE INTERLOCK DOOR MIRROR DOES NOT OPERATE
MIR-23
< SYMPTOM DIAGNOSIS >
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SYMPTOM DIAGNOSIS
REVERSE INTERLOCK DOOR MI RROR DOES NOT OPERATE
Diagnosis ProcedureINFOID:0000000006257230
1.CHECK DOOR MIRROR (MANUAL FUNCTION)
Check door mirror function with door mirror remote control switch.
Refer to ADP-126, "
DOOR MIRROR : Diagnosis Procedure".
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair or replace the malfunctioning parts.
2.CHECK DTC
Check DTC for TCM.
Refer to TM-78, "
DTC Index".
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair or replace the malfunctioning parts.
3.CONFIRM THE OPERATION
Confirm the operation again.
Is the result normal?
YES >> Check intermittent incident. Refer to GI-40, "Intermittent Incident".
NO >> GO TO 1.
Revision: 2010 May2011 QX56

MIR-24
< SYMPTOM DIAGNOSIS >
SQUEAK AND RATTLE TROUBLE DIAGNOSES
SQUEAK AND RATTLE TROUBLE DIAGNOSES
Work FlowINFOID:0000000006257247
CUSTOMER INTERVIEW
Interview the customer if possible, to determine the c onditions that exist when the noise occurs. Use the Diag-
nostic Worksheet during the interview to document t he facts and conditions when the noise occurs and any of
customer's comments; refer to MIR-28, "
Diagnostic Worksheet". This information is necessary to duplicate the
conditions that exist when the noise occurs.
 The customer may not be able to provide a detailed description or the location of the noise. Attempt to obtain all the facts and conditions that exist w hen the noise occurs (or does not occur).
 If there is more than one noise in the vehicle, perform a diagnosis and repair the noise that the customer is
concerned about. This can be accomplished by performing a cruise test on the vehicle with the customer.
 After identifying the type of noise, isolate the noise in terms of its characteristics. The noise characteristics
are provided so the customer, service adviser and technician are all speaking the same language when
defining the noise.
 Squeak – (Like tennis shoes on a clean floor)
Squeak characteristics include the light contact/fast movement/brought on by road conditions/hard surfaces
= higher pitch noise/softer surfaces = lower pitch noises/edge to surface = chirping
 Creak – (Like walking on an old wooden floor)
Creak characteristics include firm contact/slow mo vement/twisting with a rotational movement/pitch depen-
dent on materials/often brought on by activity.
 Rattle – (Like shaking a baby rattle)
Rattle characteristics include the fast repeated contac t/vibration or similar movement/loose parts/missing
clip or fastener/incorrect clearance.
 Knock – (Like a knock on a door)
Knock characteristics include hollow sounding/someti mes repeating/often brought on by driver action.
 Tick – (Like a clock second hand) Tick characteristics include gentle contacting of light materials/loose components/can be caused by driver
action or road conditions.
 Thump – (Heavy, muffled knock noise) Thump characteristics include softer k nock/dead sound often brought on by activity.
 Buzz – (Like a bumblebee)
Buzz characteristics include hi gh frequency rattle/firm contact.
 Often the degree of acceptable noise level will vary depending up on the person. A noise that you may judge as acceptable may be very irritating to the customer.
 Weather conditions, especially humidity and temperat ure, may have a great effect on noise level.
DUPLICATE THE NOISE AND TEST DRIVE
If possible, drive the vehicle with the customer until the noise is duplicated. Note any additional information on
the Diagnostic Worksheet regarding the conditions or lo cation of the noise. This information can be used to
duplicate the same conditions when you confirm the repair.
SBT842
Revision: 2010 May2011 QX56

SQUEAK AND RATTLE TROUBLE DIAGNOSESMIR-25
< SYMPTOM DIAGNOSIS >
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If the noise can be duplicated easily during the test drive, to help identify the source of the noise, try to dupli-
cate the noise with the vehicle stopped by doing one or all of the following:
1) Close a door.
2) Tap or push/pull around the area where the noise appears to be coming from.
3) Rev the engine.
4) Use a floor jack to recreate vehicle “twist”.
5) At idle, apply engine load (electrical load, half-cl utch on M/T models, drive position on A/T models).
6) Raise the vehicle on a hoist and hit a tire with a rubber hammer.
 Drive the vehicle and attempt to duplicate the conditions the customer states exist when the noise occurs.
 If it is difficult to duplicate the noise, drive the vehicle slowly on an undulating or rough road to stress the vehicle body.
CHECK RELATED SERVICE BULLETINS
After verifying the customer concern or symptom, che ck ASIST for Technical Service Bulletins (TSBs) related
to that concern or symptom.
If a TSB relates to the symptom, follow the procedure to repair the noise.
LOCATE THE NOISE AND IDENTIFY THE ROOT CAUSE
1. Narrow down the noise to a general area. To help pinpoint the source of the noise, use a listening tool
(Chassis Ear: J-39570, Engine Ear and mechanics stethoscope).
2. Narrow down the noise to a more specific area and identify the cause of the noise by:
 Removing the components in the area that you suspect the noise is coming from.
Do not use too much force when removing clips and fasteners, otherwise clips and fastener can be broken
or lost during the repair, resulting in the creation of new noise.
 Tapping or pushing/pulling the component that you suspect is causing the noise.
Do not tap or push/pull the component with excessive force, otherwise the noise will be eliminated only tem-
porarily.
 Feeling for a vibration with your hand by touching t he component(s) that you suspect is (are) causing the
noise.
 Placing a piece of paper between components that you suspect are causing the noise.
 Looking for loose components and contact marks. Refer to MIR-26, "
Inspection Procedure".
REPAIR THE CAUSE
 If the cause is a loose component, tighten the component securely.
 If the cause is insufficient clearance between components:
- Separate components by repositioning or loosening and retightening the component, if possible.
- Insulate components with a suitable insulator such as urethane pads, foam blocks, felt cloth tape or ure-
thane tape. A Nissan Squeak and Rattle Kit (J-43980) is available through your authorized Nissan Parts
Department.
CAUTION:
Do not use excessive force as many components are constructed of plastic and may be damaged.
NOTE:
Always check with the Parts Department for the latest parts information.
The following materials are contained in the Niss an Squeak and Rattle Kit (J-43980). Each item can be
ordered separately as needed.
URETHANE PADS [1.5 mm (0.059 in) thick]
Insulates connectors, harness, etc.
76268-9E005: 100 ×135 mm (3.94 ×5.31 in)/76884-71L01: 60 ×85 mm (2.36 ×3.35 in)/76884-
71L02:15 ×25 mm (0.59 ×0.98 in)
INSULATOR (Foam blocks)
Insulates components from contact. Can be used to fill space behind a panel.
73982-9E000: 45 mm (1.77 in) thick, 50 ×50 mm (1.97 ×1.97 in)/73982-
50Y00: 10 mm (0.39 in) thick, 50 ×50 mm (1.97 ×1.97 in)
INSULATOR (Light foam block)
80845-71L00: 30 mm (1.18 in) thick, 30 ×50 mm (1.18 ×1.97in)
FELT CLOTHTAPE
Used to insulate where movement does not occur. Ideal for instrument panel applications.
68370-4B000: 15 ×25 mm (0.59 ×0.98 in) pad/68239-13E00: 5 mm (0.20 in) wide tape roll
The following materials, not found in the kit, can also be used to repair squeaks and rattles.
UHMW (TEFLON) TAPE
Revision: 2010 May2011 QX56

MIR-26
< SYMPTOM DIAGNOSIS >
SQUEAK AND RATTLE TROUBLE DIAGNOSES
Insulates where slight movement is present. Ideal for instrument panel applications.
SILICONE GREASE
Used in place of UHMW tape that will be visible or not fit. Will only last a few months.
SILICONE SPRAY
Use when grease cannot be applied.
DUCT TAPE
Use to eliminate movement.
CONFIRM THE REPAIR
Confirm that the cause of a noise is repaired by test driving the vehicle. Operate the vehicle under the same
conditions as when the noise originally occurred. Refer to the notes on the Diagnostic Worksheet.
Inspection ProcedureINFOID:0000000006257248
Refer to Table of Contents for specific component removal and installationinformation.
INSTRUMENT PANEL
Most incidents are caused by contact and movement between:
1. The cluster lid A and instrument panel
2. Acrylic lens and combination meter housing
3. Instrument panel to front pillar garnish
4. Instrument panel to windshield
5. Instrument panel mounting pins
6. Wiring harnesses behind the combination meter
7. A/C defroster duct and duct joint
These incidents can usually be located by tapping or moving the components to duplicate the noise or by
pressing on the components while driving to stop the noise. Most of these incidents can be repaired by
applying felt cloth tape or silicon spray (in hard to reach areas). Urethane pads can be used to insulate
wiring harness.
CAUTION:
Do not use silicone spray to is olate a squeak or rattle. If you saturatethe area with silicone, you
will not be able to recheck the repair.
CENTER CONSOLE
Components to pay attention to include:
1. Shifter assembly cover to finisher
2. A/C control unit and cluster lid C
3. Wiring harnesses behind audio and A/C control unit
The instrument panel repair and isolation pr ocedures also apply to thecenter console.
DOORS
Pay attention to the:
1. Finisher and inner panel making a slapping noise
2. Inside handle escutcheon to door finisher
3. Wiring harnesses tapping
4. Door striker out of alignment causing a popping noise on startsand stops
Tapping or moving the components or pressing on them wh ile driving to duplicate the conditions can isolate
many of these incidents. You can usually insulate the areas with felt cloth tape or insulator foam blocks from
the Nissan Squeak and Rattle Kit (J-43980) to repair the noise.
TRUNK
Trunk noises are often caused by a loose jack or loose items put intothe trunk by the owner.
In addition look for:
1. Trunk lid dumpers out of adjustment
2. Trunk lid striker out of adjustment
3. The trunk lid torsion bars knocking together
4. A loose license plate or bracket
Revision: 2010 May2011 QX56

SQUEAK AND RATTLE TROUBLE DIAGNOSESMIR-27
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Most of these incidents can be repaired by adjusting, securing or insulatingthe item(s) or component(s) caus-
ing the noise.
SUNROOF/HEADLINING
Noises in the sunroof/headlining area can often be traced to one of the following:
1. Sunroof lid, rail, linkage or seals making a rattle or light knockingnoise
2. Sunvisor shaft shaking in the holder
3. Front or rear windshield touching headlining and squeaking
Again, pressing on the components to stop the noise whil e duplicatingthe conditions can isolate most of these
incidents. Repairs usually consistof insulating with felt cloth tape.
SEATS
When isolating seat noise it's important to note the pos ition the seatis in and the load placed on the seat when
the noise is present. These conditionsshould be duplic ated when verifying and isolating the cause of the
noise.
Cause of seat noise include:
1. Headrest rods and holder
2. A squeak between the seat pad cushion and frame
3. The rear seatback lock and bracket
These noises can be isolated by moving or pressing on the suspectedcomponents while duplicating the condi-
tions under which the noise occurs. Most of these incidents can be repaired by repositioning the component
orapplying urethane tape to the contact area.
UNDERHOOD
Some interior noise may be caused by components under the hood or onthe engine wall. The noise is then
transmitted into the passenger compartment.
Causes of transmitted underhood noise include:
1. Any component mounted to the engine wall
2. Components that pass through the engine wall
3. Engine wall mounts and connectors
4. Loose radiator mounting pins
5. Hood bumpers out of adjustment
6. Hood striker out of adjustment
These noises can be difficult to isolate since they cannot be reached from the interior of the vehicle. The best
method is to secure, move or insulate one component at a time and test drive the vehicle. Also, engine RPM
or load can be changed to isolate the noise. Repairs c an usually be made by moving, adjusting, securing, or
insulating the component causing the noise.
Revision: 2010 May2011 QX56

MWI
MWI-1
DRIVER INFORMATION & MULTIMEDIA
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CONTENTS
METER, WARNING LAMP & INDICATOR
PRECAUTION ................ ...............................4
PRECAUTIONS .............................................. .....4
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ......
4
PREPARATION ............................................5
PREPARATION .............................................. .....5
Commercial Service Tools .................................. ......5
SYSTEM DESCRIPTION ..............................6
COMPONENT PARTS ................................... .....6
METER SYSTEM .........................................................6
METER SYSTEM : Component Parts Location .. ......6
METER SYSTEM : Component Description .............7
CLOCK .................................................................. ......7
CLOCK : Component Parts Location ........................8
SYSTEM ..............................................................9
METER SYSTEM .........................................................9
METER SYSTEM : System Diagram ........................9
METER SYSTEM : System Description ....................9
METER SYSTEM : Fail-Safe ..................................12
SPEEDOMETER ................ ........................................13
SPEEDOMETER : System Diagram ................... ....13
SPEEDOMETER : System Description ...................13
TACHOMETER ...................................................... ....13
TACHOMETER : System Diagram .........................14
TACHOMETER : System Description .....................14
ENGINE COOLANT TEMPERATURE GAUGE .... ....14
ENGINE COOLANT TEMPERATURE GAUGE :
System Diagram ......................................................
14
ENGINE COOLANT TEMPERATURE GAUGE :
System Description .................................................
14
FUEL GAUGE ........................................................ ....14
FUEL GAUGE : System Diagram ............................14
FUEL GAUGE : System Description .......................14
ENGINE OIL PRESSURE GAUGE ............................15
ENGINE OIL PRESSURE GAUGE : System Dia-
gram .................................................................... ....
15
ENGINE OIL PRESSURE GAUGE : System De-
scription ...................................................................
15
VOLTMETER ......................................................... ....15
VOLTMETER : System Diagram .............................15
VOLTMETER : System Description .........................15
OIL PRESSURE WARNING LAMP ...........................15
OIL PRESSURE WARNING LAMP : System Dia-
gram .................................................................... ....
15
OIL PRESSURE WARNING LAMP : System De-
scription ...................................................................
16
MASTER WARNING LAMP ................................... ....16
MASTER WARNING LAMP : System Diagram .......16
MASTER WARNING LAMP : System Description ....16
METER ILLUMINATION CONTROL ..................... ....16
METER ILLUMINATION CONTROL : System Di-
agram ......................................................................
16
METER ILLUMINATION CONTROL : System De-
scription ...................................................................
16
METER EFFECT FUNCTION ................................ ....17
METER EFFECT FUNCTION : System Diagram ....17
METER EFFECT FUNCTION : System Descrip-
tion ...........................................................................
17
INFORMATION DISPLAY ...................................... ....19
INFORMATION DISPLAY : System Diagram ..........19
INFORMATION DISPLAY : System Description .....20
OPERATION .....................................................28
Switch Name and Function ......................................28
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