wheel INFINITI QX56 2007 Factory Service Manual

IDENTIFICATION INFORMATION
GI-49
< SERVICE INFORMATION >
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PDrive Type Grade Road wheel Tire Spare tire size
All LE7-Spoke 18x8J Chromium Aluminum Al-
loyP265/70R18 P265/70R18

IDX-7
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IDX
ALPHABETICAL INDEX
Pressure switch 2 ............................................. AT-153
Pressure switch 3 ............................... AT-137, AT-157
Pressure switch 5 ............................... AT-145, AT-159
Pressure switch 6 ............................... AT-149, AT-161
Pressure test (A/T) ............................................. AT-52
Propeller shaft ........................................... PR-4, PR-8
Propeller shaft inspection .................................. MA-25
Propeller shaft on vehicle service ....................... PR-8
Propeller shaft vibration ............................ PR-4, PR-8
PS/SEN - Wiring diagram ................................ EC-471
R
R/VIEW - Wiring diagram .................................... DI-66
Radiator ............................................................. CO-14
Rear Audio Remote Control Unit ......................... AV-8
Rear axle ........................................................... RAX-5
Rear bumper ....................................................... EI-15
Rear case (Transfer) .......................... TF-148, TF-181
Rear combination lamp removal and installation ... LT-
101
Rear cover packing replacement diff. .............. RFD-28
Rear door ........................................... BL-117, GW-65
Rear seat belt ...................................................... SB-7
Rear suspension ............................................. RSU-23
Rear view monitor ............................................... DI-63
Rear washer .................................................... WW-29
Rear window defogger ..................................... GW-71
Rear wiper ....................................................... WW-29
Refrigerant connection precaution .................... ATC-6
Refrigerant discharging evacuating charging ATC-175
Refrigerant general precaution .......................... ATC-6
Refrigerant lines ........... ATC-175, ATC-183, ATC-184
Refrigerant pressure sensor ............ EC-692, ATC-184
Relay box .......................................................... PG-78
Remote keyless entry system ............................ BL-40
Removal and installation (A/T) ........... AT-238, AT-241
Removal and installation (Transfer) ................. TF-145
Ring gear diff. inspection ................................. RFD-18
Road wheel size ................................................. GI-51
Rocker cover ..................................................... EM-35
Room lamp ....................................................... LT-110
Room lamp - See Interior lamp ........................ LT-110
ROOM/L - Wiring diagram ................................ LT-116
RP/SEN - Wiring diagram ............................... EC-693
S
SAE J1979 - Service $01 - 09 ........................... EC-49
SEAT - Wiring diagram ..................................... SE-81
Seat belt inspection ............................... SB-12, MA-32
Seat belt pre-tensioner .................................... SRS-50
Seat belt, front ..................................................... SB-3
Seat belt, rear ...................................................... SB-7
Seat, front .......................................................... SE-89
Self-diagnosis (Transfer) .................................... TF-49
SEN/PW - Wiring diagram ............................... EC-483
SHIFT - Wiring diagram ................................... AT-217
Shift control (Transfer) ....................... TF-149, TF-176
Shift lock system .............................................. AT-216
Shock absorber (front) ..................................... FSU-11
Shock absorber (rear) ..................................... RSU-32
Side air bag (satellite) sensor .......................... SRS-49
Side curtain air bag .......................................... SRS-46
Side trim .............................................................. EI-35
SMJ (super multiple junction) ............................ PG-74
SONAR - Wiring diagram ................................... DI-53
Spare tire size ..................................................... GI-51
Spark plug ......................................................... EM-29
Specification value ........................................... EC-139
Speedometer ........................................................ DI-5
Spiral cable ...................................................... SRS-41
SROOF - Wiring diagram .................................. RF-13
SRS - See Supplemental Restraint System ...... SRS-5
SRS - Wiring diagram ...................................... SRS-13
SRS Trouble diagnoses ..................................... SRS-9
Stabilizer bar (front) ......................................... FSU-12
Stabilizer bar (rear) ......................................... RSU-39
Stall test (A/T) .................................................... AT-51
Standardized relay ............................................. PG-72
START - Wiring diagram ................................... SC-11
Starting system .................................................. SC-10
Steering gear, linkage and transfer gear inspection .....
MA-29
Steering linkage ................................................. PS-15
Steering wheel and column ................................. PS-7
Step lamp ......................................................... LT-111
Stop lamp ........................................................... LT-84
Stop lamp switch ................. EC-572, EC-584, EC-647
STOP/L - Wiring diagram ................................... LT-85
Strut (front) ...................................................... FSU-10
STSIG - Wiring diagram .................................... AT-97
Sub-oil pump (Transfer) ...................... TF-154, TF-167
Sun gear (Transfer) ............................ TF-149, TF-176
Sun roof, electric ................................................ RF-10
Sunload sensor .............................................. ATC-144
Sunroof .............................................................. RF-22
Supplemental Restraint System ........................ SRS-5
Supplemental restraint system - Wiring diagram . SRS-
13
Symbols and abbreviations ..................... GI-10, GI-23
Symptom matrix chart ........................................ EC-94
System readiness test (SRT) code .................... EC-55
T
Tachometer .......................................................... DI-5
Tail lamp ............................................................. LT-89
TAIL/L - Wiring diagram ...................................... LT-91
TCM circuit diagram .......................................... AT-50
TCS - Wiring diagram ..................................... BRC-16
TCS (traction control system) ........................... BRC-7
TCS component parts and connector location BRC-14
TCS wheel sensors ........................................ BRC-14
Telephone .......................................................... AV-62
Theft warning system - See Vehicle security (Theft warn-
ing) system ......................................................... BL-67
Thermometer ...................................................... DI-23

IDX-8
ALPHABETICAL INDEX
Three way catalyst ............................................ EM-21
Three way catalyst function (Bank 1) ............... EC-376
Three way catalyst function (Bank 2) ............... EC-376
Three way catalyst precautions ............................ GI-5
Throttle control motor ....................................... EC-601
Throttle control motor relay .............................. EC-589
Throttle position sensor (TPS) .. EC-224, EC-343, EC-
514, EC-516, EC-621
Throttle valve closed position learning ............... EC-80
Tie-rod ............................................................... PS-15
Timing chain ..................................................... EM-37
Tire rotation ....................................................... MA-28
Tire size .............................................................. GI-51
Torque converter installation AT-239, AT-240, AT-243,
AT-244
Torque convertor clutch solenoid valve ... AT-114, AT-
116
Tow truck towing ................................................. GI-44
Towing point ....................................................... GI-45
TPS1 - Wiring diagram .................................... EC-345
TPS2 - Wiring diagram .................................... EC-226
TPS3 - Wiring diagram .................................... EC-623
Traction control system - Wiring diagram ....... BRC-16
Transfer control device ............. TF-75, TF-79, TF-138
Transfer control unit inspection table ................. TF-35
Transfer dropping resistor .................................. TF-89
Transfer fluid temperature sensor TF-103, TF-154, TF-
167
Transfer motor .................................... TF-101, TF-142
Transfer motor relay ........................................ TF-101
Transfer oil replacement ................................... MA-24
Transfer serial number ........................................ GI-50
Transmission serial number ................................ GI-50
Tread-FR&RR (Dimensions) ............................... GI-51
Trim ..................................................................... EI-35
TRNSCV - Wiring diagram .................. BL-130, BL-146
Trouble diagnoses .............................................. GI-11
Turbine revolution sensor ................................ AT-105
TURN - Wiring diagram ...................................... LT-67
Turn signal lamp ................................................. LT-63
Two trip detection logic ...................................... EC-49
Two-pole lift ........................................................ GI-43
V
Vacuum hose (brake system) ............................ BR-20
Vacuum hose drawing (Engine control) ........... EC-106
Valve clearance ................................................ EM-55
Valve guide ....................................................... EM-69
Vanity mirror lamp ............................................. LT-110
VDC (vehicle dynamics control) ........................ BRC-7
VDC -Wiring diagram ...................................... BRC-16
Vehicle identification number .............................. GI-49
Vehicle recovery (freeing a stuck vehicle) .......... GI-45
Vehicle security (theft warning) system ............. BL-67
Vehicle speed sensor (VSS) ............................ EC-464
VEHSEC - Wiring diagram ................................. BL-71
VENT/V - Wiring diagram .................. EC-412, EC-419
VIN registration .................................................. EC-79
Viscosity number (SAE) .................................... MA-12
VSS A/T - Wiring diagram .................. AT-107, AT-109
W
W/ANT - Wiring diagram .................................... AV-59
Wait detection switch ......................................... TF-68
WARN - Wiring diagram ...................................... DI-29
Warning chime .................................................... DI-38
Warning lamps .................................................... DI-28
Washer, front ..................................................... WW-4
Washer, rear .................................................... WW-29
Water pump ...................................................... CO-19
Water temperature gauge ..................................... DI-5
Wheel alignment (front) ..................................... FSU-6
Wheel alignment (rear) ................................... RSU-25
Wheel bearing (front) ........................................ FAX-5
Wheel bearing (rear) ......................................... RAX-5
Wheel hub (rear) ............................................... RAX-5
Wheel size .......................................................... GI-51
Wheelbase (Dimensions) .................................... GI-51
Width (Dimensions) ............................................. GI-51
WINDOW - Wiring diagram .............................. GW-22
Window, door ...................................... GW-62, GW-65
Windshield ....................................................... GW-11
WIP/R - Wiring diagram ................................... WW-33
WIPER - Wiring diagram .................................... WW-8
Wiper, front ........................................................ WW-4
Wiper, rear ....................................................... WW-29
Wiring Diagram (Cell code) list ......................... PG-62
Wiring diagrams .................................................. GI-15
WT-T/WARN - Wiring diagram .......................... WT-11

ILLUMINATION
LT-121
< SERVICE INFORMATION >
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• to BCM terminal 38, and
• through 10A fuse [No. 14, located in the fuse block (J/B)]
• to combination meter terminal 24.
Ground is supplied
• to BCM terminal 67
• to combination meter terminal 17
• through grounds M57, M61 and M79, and
• to IPDM E/R terminals 38 and 59
• through grounds E9, E15 and E24.
ILLUMINATION OPERATION BY LIGHTING SWITCH
With the lighting switch in the 1ST or 2ND position (or if the auto light system is activated), the BCM receives
input signal requesting the illumination lamps to illuminate. This input signal is communicated to the IPDM E/R
across the CAN communication lines. The CPU of the IPDM E/R controls the tail lamp relay coil, which, when
energized, directs power
• through 10A fuse (No. 36, located in the IPDM E/R)
• through IPDM E/R terminal 49
• to illumination control switch terminal 1
• to power liftgate switch terminal 3
• to front room/map lamp assembly (console box illumination) terminal 7
• to hazard switch terminal 3
• to rear sonar system OFF switch terminal 3
• to glove box lamp terminal 1
• to door mirror remote control switch terminal 16
• to display control unit terminal 14
• to power window and door lock/unlock switch RH terminal 5 (early production)
• to main power window and door lock/unlock switch LH terminal 16 (early production)
• to 4WD shift switch terminal 7 (with 4-wheel drive)
• to front air control terminal 23
• to rear power vent window switch terminal 5
• to DVD player terminal 12 (with DVD entertainment system)
• to NAVI control unit terminal 61
• to pedal adjusting switch terminal 5
• to electric brake (pre-wiring) terminal 4 (with trailer tow)
• to front and rear heated seat switch LH and RH terminal 5
• to A/T device terminal 11
• to VDC OFF switch terminal 3
• to tow mode switch terminal 3
• to headlamp aiming switch terminal 3
• to clock terminal 3, and
• through 10A fuse (No. 37, located in the IPDM E/R)
• through IPDM E/R terminal 57
• to AV switch terminal 3
• to audio unit terminal 8
• to rear air control terminal 1 and
• to rear audio remote control unit terminal 6.
The illumination control switch controls illumination intensity by varying the ground to the following
• through illumination control switch terminal 2
• to power liftgate switch terminal 4
• to front room/map lamp assembly (console box illumination) terminal 8
• to AV switch terminal 4
• to hazard switch terminal 4
• to audio unit terminal 7
• to rear sonar system OFF switch terminal 4
• to power window and door lock/unlock switch RH terminal 1 (early production)
• to main power window and door lock/unlock switch LH terminal 12 (early production)
• to 4WD switch terminal 8 (with 4-wheel drive)
• to front air control terminal 24
• to rear power vent window switch terminal 6
• to DVD player terminal 10 (with DVD entertainment system)
• to pedal adjusting switch terminal 6
• to A/T device terminal 12

MA-1
MAINTENANCE
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SECTION MA
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CONTENTS
MAINTENANCE
SERVICE INFORMATION ............................2
PRECAUTIONS ...................................................2
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ...................................................................
2
PREPARATION ...................................................3
Special Service Tool .................................................3
Commercial Service Tool ..........................................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
Schedule 2 ................................................................8
RECOMMENDED FLUIDS AND LUBRI-
CANTS ................................................................
10
Fluids and Lubricants ..............................................10
SAE Viscosity Number ............................................10
ENGINE MAINTENANCE ...................................12
Checking Drive Belts ...............................................12
Changing Engine Coolant .......................................12
Checking Fuel Line .................................................15
Changing Fuel Filter ................................................15
Changing Engine Air Cleaner Filter .........................15
Changing Engine Oil ................................................16
Changing Oil Filter ...................................................16
Changing Spark Plugs .............................................18
Checking EVAP Vapor Line .....................................19
CHASSIS AND BODY MAINTENANCE ...........20
Changing In-cabin Microfilter ...................................20
Checking Exhaust System .......................................21
Checking Automatic Transmission Fluid (ATF) .......21
Changing Automatic Transmission Fluid (ATF) .......23
Changing Transfer Fluid ..........................................23
Checking Transfer Fluid ..........................................24
Checking Propeller Shaft .........................................24
Checking Final Drive Oil ..........................................24
Changing Final Drive Oil ..........................................25
Balancing Wheels ....................................................25
Tire Rotation ............................................................27
Checking Brake Fluid Level and Leaks ...................27
CheckingBrake Line and Cables .............................27
Checking Disc Brake ...............................................27
Checking Steering Gear and Linkage ......................28
Checking Power Steering Fluid and Line ................28
Checking Axle and Suspension Parts .....................29
Lubricating Locks, Hinges and Hood Latches .........30
Checking Seat Belts, Buckles, Retractors, An-
chors and Adjusters .................................................
30

MA-4
< SERVICE INFORMATION >
GENERAL MAINTENANCE
GENERAL MAINTENANCE
General MaintenanceINFOID:0000000003533859
General maintenance includes those items which should be checked during the normal day-to-day operation
of the vehicle. They are essential if the vehicle is to continue operating properly. The owner can perform these
checks and inspections or have their INFINITI dealers perform them.
OUTSIDE THE VEHICLE
The maintenance items listed here should be performed from time to time, unless otherwise specified.
INSIDE THE VEHICLE
The maintenance items listed here should be checked on a regular basis, such as when performing periodic maintenance, cleaning the vehicle,
etc.
ItemReference page
TiresCheck the pressure with a gauge at least once a month and always prior to a
long distance trip. Adjust to the specified pressure if necessary. Check carefully
for damage, cuts or excessive wear.—
Wheel lug nutsWhen checking the tires, make sure no nuts are missing, and check for any loose
nuts. Tighten if necessary.WT-7, "
Rotation"
WindshieldClean the windshield on a regular basis. Check the windshield at least every six
months for cracks or other damage. Repair as necessary.—
Tire rotationTires should be rotated every 12,000 km (7,500 miles).WT-7, "
Rotation"
Wheel alignment and
balanceIf the vehicle pulls to either side while driving on a straight and level road, or if
you detect uneven or abnormal tire wear, there may be a need for wheel align-
ment. If the steering wheel or seat vibrates at normal highway speeds, wheel bal-
ancing may be needed.WT-6, "Balancing
Wheels", FSU-6, "Front
Wheel Alignment"
Windshield wiper
bladesCheck for cracks or wear if they do not wipe properly.
—
Doors and engine
hoodCheck that all doors and the engine hood operate smoothly as well as the back
hatch. Also make sure that all latches lock securely. Lubricate if necessary. Make
sure that the secondary latch keeps the hood from opening when the primary
latch is released.
When driving in areas using road salt or other corrosive materials, check lubri-
cation frequently.MA-30, "
Lubricating
Locks, Hinges and Hood
Latches"
Lamps
Make sure that the head lamps, stop lamps, tail lamps, turn signal lamps, and
other lamps are all operating properly and installed securely. Also check head
lamp aim. Clean the head lamps on a regular basis.LT- 2 0 , "Aiming Adjust-
ment" for US, LT- 3 3 ,
"Aiming Adjustment" for
Canada
ItemReference page
Warning lamps and
buzzers/chimesMake sure that all warning lamps and buzzers/chimes are operating properly.DI-21, "
Electrical Com-
ponent Inspection"
Windshield wiper and
washerCheck that the wipers and washer operate properly and that the wipers do not
streak.—
Windshield defrosterCheck that the air comes out of the defroster outlets properly and in sufficient
quantity when operating the heater or air conditioner.—
Steering wheelCheck that it has the specified play. Be sure to check for changes in the steering
condition, such as excessive play, hard steering or strange noises.PS-7, "
On-Vehicle In-
spection and Service"
SeatsCheck seat position controls such as seat adjusters, seat back recliner, etc. to
make sure they operate smoothly and that all latches lock securely in every po-
sition. Check that the head restraints move up and down smoothly and that the
locks (if equipped) hold securely in all latched positions. Check that the latches
lock securely for folding-down rear seat backs.—
Seat beltsCheck that all parts of the seat belt system (e.g. buckles, anchors, adjusters and
retractors) operate properly and smoothly and are installed securely. Check the
belt webbing for cuts, fraying, wear or damage.SB-10, "
Seat Belt Inspec-
tion", MA-30, "Checking
Seat Belts, Buckles, Re-
tractors, Anchors and
Adjusters"
Accelerator pedalCheck the pedal for smooth operation. Keep the floor mats away from the pedal. —

CHASSIS AND BODY MAINTENANCE
MA-25
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2. Check the oil level as shown. Add the specified oil as necessary.
NOTE:
Rear final drive shown, front final drive similar
3. Install the filler plug and tighten to specification.
Changing Final Drive OilINFOID:0000000003533883
1. Remove the filler plug.
2. Remove the drain plug and drain the final drive oil.
3. Apply sealant to the drain plug threads.
• Use High Performance Thread Sealant or equivalent. Refer to GI-45
.
4. Install the drain plug and tighten to specification.
5. Refill the rear final drive with new specified oil.
6. Check the oil level.
NOTE:
Rear final drive shown, front final drive similar
7. Install the filler plug and tighten to specification.
Balancing WheelsINFOID:0000000003533884
Removal
1. Using releasing agent, remove double-faced adhesive tape from the wheel.
CAUTION:
• Be careful not to scratch the wheel during removal.
• After removing double-faced adhesive tape, wipe clean traces of releasing agent from the wheel.
Wheel Balance Adjustment
Oil grade and viscosity : Refer to MA-10, "Fluids and
Lubricants" .
LLIA0068E
Filler plug : Refer to FFD-13, "Disassembly and Assembly" (FFD), RFD-15, "Disassembly
and Assembly" (RFD).
Drain plug : Refer to FFD-13, "
Disassembly and Assembly" ( F F D ) , RFD-15, "Disas-
sembly and Assembly" (RFD).
Oil grade and capacity : Refer to MA-10, "
Fluids and Lubricants" .
LLIA0068E
Filler plug : Refer to FFD-13, "Disassembly and Assembly" ( F F D ) , RFD-15, "Disassembly
and Assembly" (RFD).

MA-26
< SERVICE INFORMATION >
CHASSIS AND BODY MAINTENANCE
• If a tire balance machine has adhesion balance weight mode settings and drive-in weight mode setting,
select and adjust a drive-in weight mode suitable for wheels.
1. Set wheel on wheel balancer using the center hole as a guide. Start the tire balance machine.
2. When inner and outer imbalance values are shown on the wheel balancer indicator, multiply outer imbal-
ance value by 1.6 to determine balance weight that should be used. Select the outer balance weight with
a value closest to the calculated value and install it to the designated outer position of, or at the desig-
nated angle in relation to the road wheel.
CAUTION:
• Do not install the inner balance weight before installing the outer balance weight.
• Before installing the balance weight, be sure to clean the mating surface of the wheel.
Indicated imbalance value × 5/3 = balance weight to be installed
Calculation example:
23 g (0.81 oz) × 5/3 = 38.33 g (1.35 oz) = 40 g (1.41 oz) balance
weight (closer to calculated balance weight value)
Note that balance weight value must be closer to the calculated
balance weight value.
Example:
37.4 g = 35 g (1.23 oz)
37.5 g = 40 g (1.41 oz)
a. Install balance weight in the position shown.
b. When installing balance weight to wheels, set it into the grooved
area on the inner wall of the wheel as shown so that the balance
weight center is aligned with the wheel balancer indication posi-
tion (angle).
CAUTION:
• Always use Genuine NISSAN adhesion balance weights.
• Balance weights are not reusable; always replace with
new ones.
• Do not install more than three sheets of balance weights.
c. If calculated balance weight value exceeds 50 g (1.76 oz), install
two balance weight sheets in line with each other as shown.
CAUTION:
Do not install one balance weight sheet on top of another.
3. Start wheel balancer again.
4. Install drive-in balance weight on inner side of road wheel in the
wheel balancer indication position (angle).
CAUTION:
Do not install more than two balance weights.
SMA054D
WDIA0060E
SMA056D

CHASSIS AND BODY MAINTENANCE
MA-27
< SERVICE INFORMATION >
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5. Start wheel balancer. Make sure that inner and outer residual imbalance values are 5 g (0.18 oz) each or
below.
Wheel Balance (Maximum Allowable Imbalance)
• If either residual imbalance value exceeds 5 g (0.18 oz), repeat installation procedures.
Tire RotationINFOID:0000000003533885
1. Rotate the tires on each side from front to back as shown.
2. Adjust the tire pressure to specification. Refer to WT-28, "
Tire" .
3. After the tire rotation, retighten the wheel nuts after the vehicle
has been driven for 1,000 km (600 miles), and also after a wheel
and tire have been installed such as after repairing a flat tire.
Checking Brake Fluid Level and LeaksINFOID:0000000003533886
• Check the brake fluid level in the reservoir tank. It should be
between the “MAX” and “MIN” lines on the reservoir tank.
• If the fluid level is extremely low, check the brake system.
• If the brake warning lamp comes on when the fluid is at the correct
level, check the brake fluid level switch and the parking brake
switch.
CheckingBrake Line and CablesINFOID:0000000003533887
1. Check the brake lines and hoses for cracks, deterioration, and
other damage. Replace any damaged parts.
CAUTION:
If brake fluid leaks are visible around the brake line joints,
retighten the joint, or replace damaged parts as necessary.
2. Check for brake fluid leaks by fully depressing brake pedal while
engine is running.
Checking Disc BrakeINFOID:0000000003533888
ROTOR
Maximum allowable imbalanceDynamic (At rim flange) 5 g (0.18 oz) (one side)
Static 10 g (0.35 oz)
Wheel nuts : Refer to WT-6 .
AMA159
WFIA0173E
SBR389C

CHASSIS AND BODY MAINTENANCE
MA-29
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• Check the power steering fluid level with the engine off.
• Check fluid level on reservoir. Use “HOT” range at fluid tempera-
tures of 50° to 80°C (122° to 176°F). Use “COLD” range at fluid
temperatures of 0° to 30°C (32° to 86°F).
CAUTION:
• Do not overfill.
• Refer to MA-10, "
Fluids and Lubricants" .
CHECKING LINES
• Check lines for improper attachment, leaks, cracks, damage, loose
connections, chafing, and deterioration.
Checking Axle and Suspension PartsINFOID:0000000003533891
FRONT AND REAR AXLE AND SUSPENSION PARTS
Check front and rear axle and suspension parts for excessive play, cracks, wear or other damage.
• Shake each wheel to check for excessive play.
• Rotate each wheel to check for abnormal noise.
• Check the axle and suspension nuts and bolts for looseness.
• Check the strut and shock absorber for oil leakage or other damage.
• Check the suspension ball joints for grease leakage and ball joint dust cover for cracks or other damage.
DRIVE SHAFT
Check the boots and drive shaft for cracks, wear, damage, and
grease leakage.
LGIA0021E
SGIA0506E
SMA525A
SFA901