2004 INFINITI QX56 cabin filter
[x] Cancel search: cabin filterPage 408 of 3371
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Revision: August 20072004 QX56 SENSOR ........................................................... 129
COMPONENT INSPECTION ............................ 131
Optical Sensor Circuit .......................................... 131
COMPONENT DESCRIPTION ......................... 131
OPTICAL INPUT PROCESS ............................ 131
DIAGNOSTIC PROCEDURE FOR OPTICAL
SENSOR ........................................................... 132
Intake Sensor Circuit ............................................ 133
COMPONENT DESCRIPTION ......................... 133
DIAGNOSTIC PROCEDURE FOR INTAKE SEN-
SOR .................................................................. 133
COMPONENT INSPECTION ............................ 134
CONTROL UNIT ..................................................... 135
Removal and Installation ...................................... 135
FRONT AIR CONTROL .................................... 135
REAR AIR CONTROL ....................................... 135
AMBIENT SENSOR ................................................ 136
Removal and Installation ...................................... 136
REMOVAL ......................................................... 136
INSTALLATION ................................................. 136
IN-VEHICLE SENSOR ............................................ 137
Removal and Installation ...................................... 137
REMOVAL ......................................................... 137
INSTALLATION ................................................. 137
OPTICAL SENSOR ................................................ 138
Removal and Installation ...................................... 138
INTAKE SENSOR ................................................... 139
Removal and Installation ...................................... 139
REMOVAL ......................................................... 139
INSTALLATION ................................................. 139
BLOWER MOTOR .................................................. 140
Components ......................................................... 140
Removal and Installation ...................................... 140
FRONT BLOWER MOTOR ............................... 140
REAR BLOWER MOTOR ................................. 141
IN-CABIN MICROFILTER ....................................... 142
Removal and Installation ...................................... 142
FUNCTION ........................................................ 142
REPLACEMENT TIMING .................................. 142
REPLACEMENT PROCEDURE ....................... 142
HEATER & COOLING UNIT ASSEMBLY .............. 144
Components ......................................................... 144
Removal and Installation ...................................... 145
FRONT HEATER AND COOLING UNIT ASSEM-
BLY .................................................................... 145
REAR HEATER AND COOLING UNIT ASSEM-
BLY .................................................................... 146
HEATER CORE ...................................................... 147
Components ......................................................... 147
Removal and Installation ...................................... 148
FRONT HEATER CORE ................................... 148
REAR HEATER CORE ..................................... 149
DEFROSTER DOOR MOTOR ................................ 150
Removal and Installation ...................................... 150
REMOVAL ......................................................... 150
INSTALLATION ................................................. 150INTAKE DOOR MOTOR .........................................151
Removal and Installation ......................................151
REMOVAL .........................................................151
INSTALLATION .................................................151
MODE DOOR MOTOR ............................................152
Removal and Installation ......................................152
REMOVAL .........................................................152
INSTALLATION .................................................152
AIR MIX DOOR MOTOR .........................................153
Components .........................................................153
Removal and Installation ......................................153
FRONT AIR MIX DOOR MOTOR (DRIVER) .....153
FRONT AIR MIX DOOR MOTOR (PASSENGER) .154
REAR AIR MIX DOOR MOTOR ........................154
VARIABLE BLOWER CONTROL ...........................155
Removal and Installation ......................................155
REMOVAL .........................................................155
INSTALLATION .................................................155
REAR BLOWER MOTOR RESISTOR ....................156
Removal and Installation ......................................156
REMOVAL .........................................................156
INSTALLATION .................................................156
DUCTS AND GRILLES ...........................................157
Components .........................................................157
Removal and Installation ......................................160
CENTER CONSOLE HEAT DUCT AND REAR
FINISHER ASSEMBLY GRILLE ........................160
DEFROSTER NOZZLE .....................................160
RH AND LH SIDE DEMISTER DUCT ...............160
RH AND LH VENTILATOR DUCT .....................160
CENTER VENTILATOR DUCT .........................160
FLOOR DUCT ...................................................160
REAR OVERHEAD DUCTS ..............................160
REAR FLOOR DUCT ........................................161
GRILLES ...........................................................161
REFRIGERANT LINES ...........................................162
HFC-134a (R-134a) Service Procedure ...............162
SETTING OF SERVICE TOOLS AND EQUIP-
MENT ................................................................162
Components .........................................................164
Removal and Installation for Compressor ............166
REMOVAL .........................................................166
INSTALLATION .................................................167
Removal and Installation for Compressor Clutch . 167
REMOVAL .........................................................167
INSPECTION ....................................................168
INSTALLATION .................................................168
BREAK-IN OPERATION ....................................170
Removal and Installation for Low-pressure Flexible
Hose .....................................................................170
REMOVAL .........................................................170
INSTALLATION .................................................170
Removal and Installation for High-pressure Flexible
Hose .....................................................................170
REMOVAL .........................................................170
INSTALLATION .................................................170
Removal and Installation for High-pressure Pipe . 170
REMOVAL .........................................................170
INSTALLATION .................................................171
Page 547 of 3371
ATC-142
IN-CABIN MICROFILTER
Revision: August 20072004 QX56
IN-CABIN MICROFILTERPFP:27277
Removal and InstallationEJS002D3
FUNCTION
The air inside the passenger compartment is filtered by the in-cabin
microfilters when the heater or A/C controls are set on either the
recirculation or fresh mode. The two in-cabin microfilters are located
in the front heater and cooling unit assembly. The rear heater and
cooling unit assembly only draws in air from the passenger compart-
ment to recirculate into the passenger compartment, so the rear
heater and cooling unit assembly is not equipped with in-cabin
microfilters.
REPLACEMENT TIMING
Replacement of the two in-cabin microfilters is recommended on a regular interval depending on the driving
conditions. Refer to MA-6, "
PERIODIC MAINTENANCE" . It may also be necessary to replace the two in-
cabin microfilters as part of a component replacement if the in-cabin microfilters are damaged.
REPLACEMENT PROCEDURE
1. Remove the two lower glove box hinge pins to remove the glove
box from the instrument panel and let it hang from the cord.
2. Remove the screw and remove the in-cabin microfilter cover.
3. Remove the in-cabin microfilters from the front heater and cool-
ing unit assembly housing.
4. Insert the first new in-cabin microfilter into the front heater and
cooling unit assembly housing and slide it over to the right.
Insert the second new in-cabin microfilter into the front heater
and cooling unit assembly housing.
NOTE:
The in-cabin microfilters are marked with air flow arrows. The
end of the microfilter with the arrow should face the rear of the
vehicle. The arrows should point downward.
LJIA0012E
WLIA0027E
LJIA0134E
LJIA0148E
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IN-CABIN MICROFILTER
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5. Install the in-cabin microfilter cover.
6. Install the lower glove box in the instrument panel and secure it
with the two hinge pins.
LJIA0134E
WLIA0027E
Page 554 of 3371
HEATER CORE
ATC-149
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5. Remove the heater core.
NOTE:
If the in-cabin microfilters are contaminated from coolant leaking
from the heater core, replace the in-cabin microfilters with new
ones before installing the new heater core.
Installation
Installation is in the reverse order of removal.
REAR HEATER CORE
Removal
1. Partially drain the engine cooling system. Refer to MA-12, "DRAINING ENGINE COOLANT" .
2. Remove the rear RH interior trim panel. Refer to EI-34, "
Removal and Installation" .
3. Disconnect the rear heater hoses from the heater core.
4. Remove the rear heater core bracket.
5. Remove the heater core.
Installation
Installation is in the reverse order of removal.
LJIA0134E
LJIA0069E
LJIA0071E
Page 2240 of 3371
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Brake lines and cables inspection ..................... MA-27
Brake master cylinder ....................................... BR-15
Brake switch .................................................... EC-551
BRK/SW - Wiring diagram ............................... EC-552
Bulb specifications ........................................... LT-170
Bumper, front ...................................................... EI-13
Bumper, rear ....................................................... EI-15
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Cabin air filter .................................................... MA-20
Camshaft ........................................................... EM-43
Camshaft inspection .......................................... EM-47
Camshaft position sensor (PHASE) ................ EC-261
CAN - Wiring diagram EC-136, LAN-18, LAN-52, LAN-
92, LAN-128
CAN (Controller Area Network) .. WT-9, BRC-10, LAN-
16, LAN-50, LAN-90, LAN-126
CAN communication . EC-31, EC-135, AT-103, WT-9,
BRC-10
, LAN-16, LAN-50, LAN-90, LAN-126
Canister-See EVAP canister ........................... EC-636
Center case (Transfer) ..................................... TF-113
CHARGE - Wiring diagram ............................... SC-18
Charging system ............................................... SC-17
Chassis and body maintenance ........................ MA-20
Chassis and body maintenanceSchedule 1 ........ MA-7
Chassis and body maintenanceSchedule 2 ........ MA-9
CHIME - Wiring diagram ..................................... DI-46
Circuit breaker ................................................... PG-67
Clock ................................................................... DI-70
CLOCK - Wiring diagram .................................... DI-70
Closed loop control ........................................... EC-27
Closed loop control (Bank 1) ........................... EC-407
Closed loop control (Bank 2) ........................... EC-407
Clutch drum (Transfer) ..................................... TF-116
Clutch force release limit adjustment ................. TF-42
Clutch pressure switch (Transfer) ...................... TF-95
Coil spring (front) ............................................. FSU-10
Collision diagnosis .......................................... SRS-60
Combination lamp, front, removal and installation . LT-
33
Combination lamp, rear, removal and installation .. LT-
122
Combination meter ................................................ DI-5
Combination switch ............................................ LT-97
COMBSW - Wiring diagram ............................... LT-97
COMM - Wiring diagram ................................... AV-87
COMPAS - Wiring diagram ................................. DI-27
Compass ............................................................. DI-26
Component Location (auto A/C) ...................... ATC-37
Compressor clutch removal and installation . ATC-167
Compressor mounting ................................... ATC-166
Compressor precaution ................................... ATC-11
Compressor special service tool ..................... ATC-14
Condenser ..................................................... ATC-173
Connecting rod .................................................. EM-91
Connecting rod bearing clearance .................... EM-91
Connecting rod bushing clearance .................... EM-91
Console box - See Instrument panel ................... IP-10
Console box lamp ............................................. LT-152
CONSULT for all-mode 4WD ............................. TF-31
CONSULT for VDC ......................................... BRC-28
CONSULT-II for engine ................................... EC-103
Control units (terminal arrangement) ................. PG-71
Control valve (A/T) ............................................. AT-37
Control valve (Transfer) .................................... TF-119
Controller Area Network (CAN) . WT-9, BRC-10, LAN-
16, LAN-50, LAN-90, LAN-126
Converter housing installation ............ AT-257, AT-260
COOL/F - Wiring diagram ................................ EC-413
Coolant mixture ratio ......................................... MA-11
Coolant replacement ......................................... MA-12
Cooling circuit (engine) ........................................ CO-6
Cooling fan ........................................................ CO-13
Cooling fan control ........................................... EC-410
Cooling fan motor ............................................ EC-419
Cooling unit (A/C evaporator) ....... ATC-144, ATC-175
Corrosion protection ......................................... BL-167
Crankcase ventilation system - See Positive crankcase
ventilation ........................................................ EC-645
Crankshaft ......................................................... EM-74
Crankshaft position sensor (POS) ................... EC-255
Crash zone sensor .......................................... SRS-55
Cylinder block .................................................... EM-73
Cylinder block boring ......................................... EM-94
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D/LOCK - Wiring diagram ................................... BL-20
Data link connector .......................................... EC-105
Daytime light system .......................................... LT-34
Daytime running light - See Daytime light system .. LT-
34
DEF - Wiring diagram ....................................... GW-82
Diagnosis sensor unit ...................................... SRS-58
Diagnostic trouble code (DTC) .......................... EC-53
Diagnostic trouble code (DTC) for OBD system .. EC-8
Diagnostic trouble code (DTC) inspection priority chart
EC-76
Differential carrier assembly ............................ RFD-11
Differential carrier disassembly ....................... RFD-13
Differential gear oil replacement ........................ MA-25
Dimensions ......................................................... GI-49
Direct clutch solenoid valve ................ AT-157, AT-160
Display and amp.assembly .............................. ATC-60
Display Control Unit ......................................... AV-158
Dome light - See Interior lamp .......................... LT-129
Door glass .......................................... GW-69, GW-72
Door lock .......................................................... BL-132
Door mirror lamp ............................................... LT-129
Door trim .............................................................. EI-31
Door, front ........................................... BL-129, GW-69
Door, rear ........................................... BL-129, GW-72
Drive belt ........................................................... EM-12
Drive chain (Transfer) ....................................... TF-115
Drive pinion diff. inspection .............................. RFD-12
Drive pinion height ........................................... RFD-17
Drive shaft (rear) ................................................ RAX-7
Page 2242 of 3371
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H/AIM - Wiring diagram ...................................... LT-66
H/LAMP - Wiring diagram .................................. LT-10
Handling precautions for plastics ..................... BL-189
Harness connector ............................................ PG-68
Harness layout .................................................. PG-40
Hazard warning lamp ......................................... LT-80
Headlamp ............................................................. LT-6
Headlamp aiming control ................................... LT-65
Headlamp leveler - See Headlamp aiming control . LT-
65
Headlamp removal and installation .................... LT-33
Heated oxygen sensor 2 (bank 1) .... EC-186, EC-196,
EC-383
, EC-395
Heated oxygen sensor 2 (bank 2) .... EC-186, EC-196,
EC-383
, EC-395
Heated oxygen sensor 2 heater (bank 1) ........ EC-138
Heated oxygen sensor 2 heater (bank 2) ........ EC-138
Heated seat ....................................................... SE-89
Heater and cooling unit (Heater core) . ATC-144, ATC-
147
Heater unit (heater core) ............... ATC-144, ATC-147
Height (Dimensions) ........................................... GI-49
HFC134a (R134a) system identification ........... ATC-7
HFC134a (R134a) system precaution ............... ATC-5
HFC134a (R134a) system service procedure ATC-162
HFC134a (R134a) system service tools ......... ATC-14
HFC134a system service equipment precaution ATC-
11
High and low reverse clutch solenoid valve .... AT-163,
AT-166
Horn ................................................................ WW-56
HORN - Wiring diagram .................................. WW-56
How to erase DTC for OBD system .................. EC-62
HSEAT - Wiring diagram ................................... SE-91
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I/MIRR - Wiring diagram ................................... GW-76
IATS - Wiring diagram ..................................... EC-162
ICC - Wiring diagram ....................................... ACS-20
ICC/BS - Wiring diagram ................................. EC-527
ICC/SW - Wiring diagram ................................ EC-512
ICCBOF - Wiring diagram ............................... EC-614
Identification plate .............................................. GI-47
Idle air volume learning ..................................... EC-44
Idle mixture ratio ................................................ EC-33
Idle speed .......................................................... EC-33
Idle speed control (ISC) .................... EC-342, EC-344
Ignition coil .......................................... EM-26, EC-583
Ignition control system .................................... EC-583
Ignition key hole illumination ............................ LT-129
Ignition timing .................................................... EC-33
IGNSYS - Wiring diagram ............................... EC-584
ILL - Wiring diagram ......................................... LT-158
Illumination ....................................................... LT-152
Illumination control .............................. LT-152, LT-169
In vehicle sensor ........................... ATC-128, ATC-137
In-cabin Microfilter ............................................. MA-20
INJECT - Wiring diagram ................................. EC-596
Injector ............................................................. EC-595
Input clutch solenoid valve ................. AT-145, AT-148
Instrument panel .................................................. IP-10
Instrument panel speaker .................................. AV-46
INT/L - Wiring diagram ..................................... LT-135
Intake air temperature sensor ............ EC-161, EC-181
Intake door control linkage adjustment . ATC-78, ATC-
80
Intake door motor ........................... ATC-76, ATC-151
Intake manifold .................................................. EM-15
Intake sensor ................................ ATC-133, ATC-139
Intelligent cruise control (ICC) system ............... ACS-6
Interior ................................................................. EI-34
Interior lamp ...................................................... LT-129
Interior lamp on-off control ................................ LT-129
Internal gear (Transfer) ..................................... TF-127
IPDM (Intelligent power distribution module engine
room) ................................................................. PG-17
IVIS (Infiniti vehicle immobilizer system) precautions ...
GI-3
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Jacking points ..................................................... GI-40
Junction box (J/B) .............................................. PG-76
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Key illumination ................................................ LT-129
Keyless entry system - See Multi-remote control system
BL-44
Knock sensor (KS) ........................................... EC-250
KS - Wiring diagram ........................................ EC-251
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Length (Dimensions) .......................................... GI-49
License lamp .................................................... LT-108
Lifting points ....................................................... GI-41
Line pressure solenoid valve ........................... AT-124
Line pressure switch (Transfer) .......................... TF-95
Line pressure test (A/T) ..................................... AT-59
Liquid gasket application ......................... LU-2, FFD-2
Location of electrical units ................................. PG-64
Low coast brake solenoid valve .......... AT-169, AT-172
Low tire pressure warning system ...................... WT-7
Low tire pressure warning system - trouble diagnoses
WT-10
Low tire pressure warning system - Wiring diagram .....
WT-10
Lubricant (R134a) A/C ..................................... ATC-22
Lubricants .......................................................... MA-10
Lubrication circuit (engine) .................................. LU-5
Lubrication oil A/C ........................................... ATC-22
Lubrication-locks, hinges and hood latches ....... MA-30
Page 2618 of 3371
MA-1
MAINTENANCE
L MAINTENANCE
CONTENTS
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SECTION MA
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Revision: August 20072004 QX56 PRECAUTIONS .......................................................... 2
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 2
PREPARATION ........................................................... 3
Special Service Tools ............................................... 3
GENERAL MAINTENANCE ....................................... 4
General Maintenance ............................................... 4
PERIODIC MAINTENANCE ....................................... 6
Introduction of Periodic Maintenance ....................... 6
Maintenance For Off-road Driving (4WD only) ......... 6
Schedule 1 ............................................................... 6
EMISSION CONTROL SYSTEM MAINTE-
NANCE .................................................................. 6
CHASSIS AND BODY MAINTENANCE ............... 7
Schedule 2 ............................................................... 8
EMISSION CONTROL SYSTEM MAINTE-
NANCE .................................................................. 8
CHASSIS AND BODY MAINTENANCE ............... 9
RECOMMENDED FLUIDS AND LUBRICANTS ...... 10
Fluids and Lubricants ............................................. 10
SAE Viscosity Number ............................................11
GASOLINE ENGINE OIL .....................................11
ANTI-FREEZE COOLANT MIXTURE RATIO ......11
ENGINE MAINTENANCE ......................................... 12
Checking Drive Belts .............................................. 12
DRIVE BELT TENSION ...................................... 12
Changing Engine Coolant ...................................... 12
DRAINING ENGINE COOLANT ......................... 12
REFILLING ENGINE COOLANT ........................ 13
FLUSHING COOLING SYSTEM ......................... 14
Checking Fuel Lines ............................................... 15
Changing Fuel Filter ............................................... 15
Changing Engine Air Cleaner Filter ........................ 15
VISCOUS PAPER TYPE ..................................... 15
Changing Engine Oil .............................................. 16
Changing Oil Filter ................................................. 16
Changing Spark Plugs ........................................... 17
REMOVAL ........................................................... 17INSPECTION AFTER REMOVAL ....................... 18
INSTALLATION ................................................... 19
Checking EVAP Vapor Lines .................................. 19
CHASSIS AND BODY MAINTENANCE ................... 20
Changing In-cabin Microfilter .................................. 20
Checking Exhaust System ...................................... 21
Checking A/T Fluid ................................................. 21
Changing A/T Fluid ................................................. 23
Checking Transfer Fluid ......................................... 24
FLUID LEAKAGE AND FLUID LEVEL ................ 24
Changing Transfer Fluid ......................................... 24
DRAINING ........................................................... 24
FILLING ............................................................... 24
Checking Propeller Shaft ........................................ 24
Checking Final Drive Oil ......................................... 24
Changing Final Drive Oil ......................................... 25
Balancing Wheels ................................................... 25
REMOVAL ........................................................... 25
WHEEL BALANCE ADJUSTMENT ..................... 25
Tire Rotation ........................................................... 27
Checking Brake Fluid Level and Leaks .................. 27
Checking Brake Lines and Cables ......................... 27
Checking Disc Brake .............................................. 28
ROTOR ................................................................ 28
CALIPER ............................................................. 28
PAD ..................................................................... 28
Checking Steering Gear and Linkage ..................... 28
STEERING GEAR ............................................... 28
STEERING LINKAGE ......................................... 28
Checking Power Steering Fluid and Lines .............. 29
CHECKING FLUID LEVEL .................................. 29
CHECKING LINES .............................................. 29
Checking Axle and Suspension Parts .................... 29
FRONT AND REAR AXLE AND SUSPENSION
PARTS ................................................................. 29
DRIVE SHAFT ..................................................... 29
Lubricating Locks, Hinges and Hood Latches ........ 30
Checking Seat Belts, Buckles, Retractors, Anchors
and Adjusters .......................................................... 31
Page 2623 of 3371
MA-6
PERIODIC MAINTENANCE
Revision: August 20072004 QX56
PERIODIC MAINTENANCEPFP:00026
Introduction of Periodic MaintenanceELS00100
Two different maintenance schedules are provided, and should be used, depending upon the conditions in
which the vehicle is mainly operated. After 60,000 miles (96,000 km) or 48 months, continue the periodic
maintenance at the same mileage or time intervals, whichever comes first.
Maintenance For Off-road Driving (4WD only)ELS0012H
After driving the vehicle off-road through sand, mud, or water; more frequent maintenance may be required for
the following items:
Brake pads and rotors
Brake lines and hoses
Rear final drive oil, transmission fluid, and transfer fluid
Steering linkage
Drive shafts
Engine air cleaner filter
In-cabin microfilters
Schedule 1ELS00101
EMISSION CONTROL SYSTEM MAINTENANCE
Abbreviations: R = Replace. I = Inspect. Correct or replace if necessary. [ ]: At the mileage intervals only Schedule 1Follow Periodic Maintenance Schedule 1 if your driving habits frequently includes
one or more of the following driving conditions:
Repeated short trips of less than 5 miles (8 km).
Repeated short trips of less than 10 miles (16 km) with outside temperatures
remaining below freezing.
Operating in hot weather in stop-and-go “rush hour” traffic.
Extensive idling and/or low speed driving for long distances, such as police,
taxi or door-to-door delivery use.
Driving in dusty conditions.
Driving on rough, muddy, or salt spread roads.
Towing a trailer or using a car-top carrier.Emission Control Sys-
tem MaintenanceMA-6
Chassis and Body
MaintenanceMA-6
Schedule 2Follow Periodic Maintenance Schedule 2 if none of the driving conditions shown
in Schedule 1 apply to the driving habits.Emission Control Sys-
tem MaintenanceMA-8Chassis and Body
MaintenanceMA-8
MAINTENANCE OPERATIONMAINTENANCE INTERVAL
Reference
Section -
Page or -
Content Title Perform at number of miles,
kilometers or months, which-
ever comes first.Miles x 1,000
(km x 1,000)
Months3.75
(6)
37.50
(12)
611 . 2 5
(18)
915
(24)
1218.75
(30)
1522.5
(36)
1826.25
(42)
2130
(48)
24
Drive belts NOTE (1)MA-12
Air cleaner filter NOTE (2) [R]MA-15
EVAP vapor linesI*MA-19
Fuel linesI*MA-15
Fuel filter NOTE (3)—
Engine coolant NOTE (4)MA-12
Engine oil R R RRRRRRMA-16
Engine oil filter R R RRRRRRMA-16
Spark plugs (double PLATI-
NUM-TIPPED type)Replace every 105,000 miles (169,000 km).MA-17
Intake and exhaust valve
clearance*NOTE (5)EM-52