seat adjustment INFINITI QX56 2009 Factory Owner's Guide

INSPECTION AND ADJUSTMENTSE-5
< BASIC INSPECTION >
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INSPECTION AND ADJUSTMENT
Preliminary CheckINFOID:0000000003775440
1.FOREIGN OBJECTS
Check the following:
• objects on or behind the seats that could cause binding
• objects under the seats that may be in terfering with the seat’s moving parts
Are there any foreign objects that could be causing interference with the seats?
YES >> Remove objects.
NO >> GO TO 2.
2.WIRING CONNECTIONS
1. Disconnect third row power folding seat c ontrol unit and seat motor harness connectors.
2. Check terminals for damage or loose connections.
3. Reconnect harness connectors.
Are any connectors damaged or loose?
YES >> Repair or replace damaged parts.
NO >> GO TO 3.
3.POWER AND GROUND
Check power supply and ground circuits for third row power folding seat control unit. Refer to SE-19, "
Power
Supply and Ground Circuit Check for Third Row Power Folding Seat Control Unit".
Is the inspection result normal?
YES >> Refer to SE-29, "DTC Index".
NO >> Repair or replace as necessary.
Revision: December 20092009 QX56

SQUEAK AND RATTLE TROUBLE DIAGNOSESSE-41
< SYMPTOM DIAGNOSIS >
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Most of these incidents can be repaired by adjusting, se curing or insulating the 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 knocking noise
2. Sun visor shaft shaking in the holder
3. Front or rear windshield touching headliner and squeaking
Again, pressing on the components to stop the noise while duplicating the conditions can isolate most of these
incidents. Repairs usually consist of insulating with felt cloth tape.
OVERHEAD CONSOLE (FRONT AND REAR)
Overhead console noises are often caused by the cons ole panel clips not being engaged correctly. Most of
these incidents are repaired by pushing up on the c onsole at the clip locations until the clips engage.
In addition look for:
1. Loose harness or harness connectors.
2. Front console map/reading lamp lense loose.
3. Loose screws at console attachment points.
SEATS
When isolating seat noise it's important to note the position the seat is in and the load placed on the seat when
the noise is present. These conditions should be duplicated 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 suspected components while duplicating the con-
ditions under which the noise occurs. Most of thes e incidents can be repaired by repositioning the component
or applying urethane tape to the contact area.
UNDERHOOD
Some interior noise may be caused by components under the hood or on the 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 can usually be made by moving, adjusting, securing, or
insulating the component causing the noise.
Revision: December 20092009 QX56

SN
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DRIVER INFORMATION & MULTIMEDIA
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SECTION SN
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CONTENTS
SONAR SYSTEM
BASIC INSPECTION ....... .............................3
DIAGNOSIS AND REPAIR WORKFLOW ..... .....3
Work Flow ........................................................... ......3
INSPECTION AND ADJUSTMENT .....................5
Preliminary Check ............................................... ......5
FUNCTION DIAGNOSIS ...............................6
REAR SONAR SYSTEM ................................ .....6
System Diagram .................................................. ......6
System Description ...................................................6
Component Parts Location ........................................7
Component Description .............................................7
Self-Diagnosis Function ............................................7
FRONT AND REAR SONAR SYSTEM .......... ....10
System Diagram .................................................. ....10
System Description .................................................10
Component Parts Location ......................................11
Component Description ...........................................12
CONSULT-III Function (SONAR) ............................12
COMPONENT DIAGNOSIS .........................13
POWER SUPPLY AND GROUND CIRCUIT .. ....13
Diagnosis Procedure (With Rear Sonar System) ....13
Diagnosis Procedure (With Front and Rear Sonar
System) ............................................................... ....
13
SONAR SENSOR CIRCUIT INSPECTION ........15
Description .......................................................... ....15
Diagnosis Procedure (With Rear Sonar System) ....15
Diagnosis Procedure (With Front and Rear Sonar
System) ...................................................................
15
SONAR BUZZER CIRCUIT INSPECTION .........17
Description .......................................................... ....17
Diagnosis Procedure (With Rear Sonar System) ....17
Diagnosis Procedure (With Front and Rear Sonar
System) ...................................................................
17
Component Inspection ......................................... ....18
SONAR SYSTEM OFF SWITCH CIRCUIT IN-
SPECTION ........................................................
19
Description ........................................................... ....19
Diagnosis Procedure (With Rear Sonar System) ....19
Diagnosis Procedure (With Front and Rear Sonar
System) ............................................................... ....
19
Component Inspection .............................................20
ECU DIAGNOSIS .........................................21
SONAR CONTROL UNIT FOR REAR SONAR
SYSTEM ...................... ......................................
21
Reference Value .................................................. ....21
Wiring Diagram ........................................................23
DTC Index ...............................................................30
SONAR CONTROL UNIT FOR FRONT AND
REAR SONAR SYSTEM ...................................
31
Reference Value ......................................................31
Wiring Diagram ........................................................33
DTC Index ...............................................................44
SYMPTOM DIAGNOSIS ..............................45
SONAR SYSTEM SYMPTOMS ........................45
Symptom Table ................................................... ....45
PRECAUTION ..............................................46
PRECAUTION ...................................................46
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ....
46
Precaution Necessary for Steering Wheel Rota-
tion After Battery Disconnect ...................................
46
PREPARATION ...........................................48
PREPARATION .................................................48
Commercial Service Tool .................................... ....48
Revision: December 20092009 QX56

TM-4
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ................................................................
174
Precaution Necessary for Steering Wheel Rota-
tion After Battery Disconnect .................................
174
Precaution for On Board Diagnosis (OBD) System
of A/T and Engine ..................................................
175
Precaution .............................................................175
Service Notice or Precaution .................................176
PREPARATION ..........................................177
PREPARATION .............................................. .177
Special Service Tool ............................................ ..177
Commercial Service Tool ......................................178
ON-VEHICLE MAINTENANCE ..................179
A/T FLUID ....................................................... .179
Checking the A/T Fluid (ATF) .............................. ..179
Changing the A/T Fluid (ATF) ................................181
A/T FLUID COOLER ........................................183
A/T Fluid Cooler Cleaning ................................... ..183
Inspection ..............................................................185
STALL TEST ....................................................186
Inspection and Judgment .................................... ..186
LINE PRESSURE TEST ..................................188
Inspection and Judgment .................................... ..188
ROAD TEST .....................................................190
Description ........................................................... ..190
Check Before Engine Is Started ............................190
Check At Idle .........................................................190
Cruise Test - Part 1 ...............................................191
Cruise Test - Part 2 ...............................................193
Cruise Test - Part 3 ...............................................194
Vehicle Speed When Shifting Gears .....................194
Vehicle Speed When Performing and Releasing
Complete Lock-up .................................................
194
A/T POSITION .................................................195
Adjustment of A/T Position .................................. ..195
Checking of A/T Position .......................................195
ON-VEHICLE REPAIR ............................. ..196
SHIFT CONTROL SYSTEM ........................... .196
A/T Shift Selector Removal and Installation ........ ..196
AIR BREATHER HOSE ...................................197
2WD ........................................................................ ..197
2WD : Removal and Installation ............................197
4WD ........................................................................ ..197
4WD : Removal and Installation ............................197
OIL PAN ...........................................................201
Oil Pan ................................................................. .201
CONTROL VALVE WITH TCM ........................203
Control Valve with TCM and A/T Fluid Tempera-
ture Sensor 2 ....................................................... .
203
REAR OIL SEAL ..............................................212
Rear Oil Seal ........................................................ .212
FLUID COOLER SYSTEM ...............................213
Exploded View ..................................................... .213
Removal and Installation .......................................213
REMOVAL AND INSTALLATION .............214
TRANSMISSION ASSEMBLY ........................ ..214
Removal and Installation (2WD) .......................... .214
Removal and Installation (4WD) ...........................216
DISASSEMBLY AND ASSEMBLY ...........220
OVERHAUL .................................................... ..220
Component .......................................................... .220
Oil Channel ...........................................................227
Location of Adjusting Shims, Needle Bearings,
Thrust Washers and Snap Rings ......................... .
229
DISASSEMBLY .............................................. ..232
Disassembly ......................................................... .232
REPAIR FOR COMPONENT PARTS ..............249
Oil Pump .............................................................. .249
Front Sun Gear, 3rd One-Way Clutch ...................251
Front Carrier, Input Clutch, Rear Internal Gear .....253
Mid Sun Gear, Rear Sun Gear, High and Low Re-
verse Clutch Hub ..................................................
258
High and Low Reverse Clutch ..............................263
Direct Clutch .........................................................265
ASSEMBLY .................................................... ..268
Assembly (1) ........................................................ .268
Adjustment ............................................................281
Assembly (2) .........................................................283
SERVICE DATA AND SPECIFICATIONS
(SDS) ............... ..........................................
290
SERVICE DATA AND SPECIFICATIONS
(SDS) .............................................................. ..
290
General Specification ........................................... .290
Vehicle Speed at Which Gear Shifting Occurs .....290
Vehicle Speed at Which Lock-up Occurs/Releas-
es ..........................................................................
291
Stall Speed ............................................................291
Line Pressure ........................................................291
Input Speed Sensor ..............................................291
Output Speed Sensor ...........................................291
Reverse Brake ......................................................291
Total End Play .......................................................292
Torque Converter .................................................
Revision: December 20092009 QX56

WT-2
Hazard Warning Lamps Flash When Ignition
Switch Is Turned On ...............................................
33
"TIRE PRESSURE" INFORMATION IN DIS-
PLAY UNIT DOES NOT EXIST .........................
34
"TIRE PRESSURE" Information in Display Unit
Does Not Exist ..................................................... ...
34
ID REGISTRATION CANNOT BE COMPLET-
ED ......................................................................
35
ID Registration Cannot Be Completed ................ ...35
NOISE, VIBRATION AND HARSHNESS
(NVH) TROUBLESHOOTING ......................... ...
36
NVH Troubleshooting Chart ................................ ...36
PRECAUTION .............................................37
PRECAUTIONS .............................................. ...37
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" .............................................................. ...
37
Precaution Necessary for Steering Wheel Rota-
tion After Battery Disconnect ..................................
37
PREPARATION ...........................................39
PREPARATION .............................................. ...39
Special Service Tool ............................................ ...39
Commercial Service Tool ........................................39
ON-VEHICLE MAINTENANCE ..................40
WHEEL ........................................................... ...40
Inspection ............................................................. ...40
ON-VEHICLE REPAIR ...............................41
WHEEL AND TIRE ASSEMBLY .................... ...41
Adjustment ........................................................... ...41
REMOVAL AND INSTALLATION ..............43
REMOVAL AND INSTALLATION .................. ...43
Transmitter (Pressure Sensor) ............................. ...43
SERVICE DATA AND SPECIFICATIONS
(SDS) .......... ................................. ...............
45
SERVICE DATA AND SPECIFICATIONS
(SDS) .............................................................. ...
45
Road Wheel ......................................................... ...45
Tire ..........................................................................45
Revision: December 20092009 QX56

WW-2
Wiring Diagram .......................................................61
Fail Safe .................................................................64
SYMPTOM DIAGNOSIS .............................66
WIPER AND WASHER SYSTEM SYMPTOMS
...
66
Symptom Table ................................................... ...66
NORMAL OPERATING CONDITION ................69
Description ........................................................... ...69
FRONT WIPER DOES NOT OPERATE ............70
Description ........................................................... ...70
Diagnosis Procedure ..............................................70
PRECAUTION .............................................72
PRECAUTION ... .............................................. ...72
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" .............................................................. ...
72
Precaution Necessary for Steering Wheel Rota-
tion After Battery Disconnect ..................................
72
ON-VEHICLE REPAIR ................................74
FRONT WIPER ARM ...................................... ...74
Front Wiper Arms ................................................ ...74
FRONT WIPER DRIVE ASSEMBLY .................75
Wiper Motor and Linkage ..................................... ...75
FRONT WASHER TUBE ...................................76
Washer Tube Layout ............................................ ...76
FRONT WASHER NOZZLE ..............................77
Washer Nozzle Adjustment .................................. ...77
WASHER TANK ................................................78
Washer Fluid Reservoir ..........................................78
FRONT WASHER PUMP ..................................79
Washer Motor ...................................................... ...79
FRONT WIPER AND WASHER SWITCH .........80
Wiper and Washer Switch .................................... ...80
REAR WIPER AND WASHER SYSTEM ...........81
Rear Wiper Arm ................................................... ...81
Rear Wiper Motor ....................................................81
Rear Washer Nozzle Adjustment ............................82
Rear Washer Tube Layout ......................................83
Rear Washer Nozzle ...............................................83
Rear Wiper and Washer Switch ..............................83
Washer Fluid Reservoir ....................................... ...84
Washer Motor .........................................................84
Revision: December 20092009 QX56