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Infiniti Q45 (FY33). Manual - part 521

SRA780A

Stabilizer Bar

REMOVAL

Remove connecting rod and clamp.

INSPECTION

Check stabilizer bar for deformation or cracks. Replace if nec-
essary.

Check rubber bushings for deterioration or cracks. Replace if
necessary.

SRA321A

INSTALLATION

When installing connecting rod, make sure direction is correct (as
shown at left).

IDX

REAR SUSPENSION

RA-25

General Specifications

Suspension type

Independent multi-link with coil

spring

Shock absorber type

Standard: Double-acting hydraulic

Optional: Adjusting hydraulic

(Active damper suspension)

Stabilizer

Standard equipment

Inspection and Adjustment

WHEEL ALIGNMENT (Unladen*)

Camber

Minimum

−0°15

′

(−0.25°)

Degree minute

(Decimal degree)

Nominal

−0°45

′

(−0.75°)

Maximum

−1°15

′

(−1.25°)

Total toe-in

Minimum

0 (0)

Distance (A − B)

mm (in)

Nominal

2.5 (0.098)

Maximum

5 (0.20)

Angle (left plus right)

Minimum

′

(0.00°)

Degree minute

(Decimal degree)

Nominal

′

(0.23°)

Maximum

′

(0.47°)

*: Fuel, radiator coolant and engine oil full. Spare tire, jack, hand tools

and mats in designated positions.

WHEEL BEARING

Wheel bearing axial end play

mm (in)

0.05 (0.0020) or less

Wheel bearing lock nut

Tightening torque

⋅

m (kg-m, ft-lb)

206 - 274 (21 - 28, 152 - 203)

WHEEL RUNOUT (Radial and lateral)

Wheel type

Radial runout

Lateral runout

Aluminum wheel

mm (in)

0.3 (0.012) or less

LOWER BALL JOINT

Swing force
(Measuring point: cotter pin hole of ball
stud)

N (kg, lb)

7.8 - 78.5

(0.8 - 8.0, 1.8 - 17.6)

Turning torque

⋅

m (kg-cm, in-lb) 0.5 - 4.9 (5 - 50, 4.3 - 43.4)

Vertical end play

mm (in)

0 (0)

DRIVE SHAFT

Joint type

SRA668A

Final drive side

DS90

Wheel side

ZF100

Grease

Nissan genuine grease

or equivalent

Specified amount of grease

g (oz)

Final drive side

165 - 175 (5.82 - 6.17)

Wheel side

113 - 123 (3.99 - 4.34)

Boot length

mm (in)

Final drive side (L

)

93 - 95 (3.66 - 3.74)

Wheel side (L

)

96 - 98 (3.78 - 3.86)

SERVICE DATA AND SPECIFICATIONS (SDS)

RA-26

RESTRAINT SYSTEM

SECTION

CONTENTS

PRECAUTION..................................................................2

Supplemental Restraint System (SRS)

SEAT BELT PRE-TENSIONER

″

...............2

SEAT BELTS ...................................................................3

Front Seat Belt.............................................................4
Rear Seat Belt .............................................................5
Seat Belt Inspection.....................................................7
Tether Anchor Plate ...................................................10

SUPPLEMENTAL RESTRAINT SYSTEM (SRS).......... 11

Service............................. 11

Removal - Front Passenger Air Bag Module ............19
Removal - Side Air Bag Module (Built-in type) .........20
Installation - Driver Air Bag Module and Spiral
Cable..........................................................................22
Installation - Front Passenger Air Bag Module .........23
Installation - Side Air Bag Module (Built-in type) ......23
Disposal of Air Bag Module and Seat Belt
Pre-tensioner .............................................................24

TROUBLE DIAGNOSES - Supplemental
Restraint System (SRS) ...............................................30

Trouble Diagnoses Introduction.................................30
How to Perform Trouble Diagnoses for Quick
and Accurate Repair ..................................................32
Schematic ..................................................................34
Wiring Diagram - SRS -.............................................35
Self-diagnosis ............................................................38
Trouble Diagnoses for Air Bag Warning Lamp..........56
Trouble Diagnosis for Seat Belt Pre-tensioner
Warning Lamp ...........................................................58

COLLISION DIAGNOSIS...............................................60

IDX

Supplemental Restraint System (SRS) “AIR
BAG” and “SEAT BELT PRE-TENSIONER”

The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER” used along with
a seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain types of
collision. The SRS composition which is available to INFINITI Q45 is as follows:

For a frontal collision
The Supplemental Restraint System consists of driver air bag module (located in the center of the steer-
ing wheel), front passenger air bag module (located on the instrument panel on passenger side), seat belt
pre-tensioners, a diagnosis sensor unit, warning lamp, wiring harness and spiral cable.

For a side collision
The Supplemental Restraint System consists of front side air bag module (located in the outer side of front
seat), satellite sensor, diagnosis sensor unit (one of components of air bags for a frontal collision), wiring
harness, warning lamp (one of components of air bags for a frontal collision).

WARNING:

To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death
in the event of a collision which would result in air bag inflation, all maintenance should be per-
formed by an authorized INFINITI dealer.

Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system.

Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. Spiral cable and wiring harnesses (except satellite sensor and side air bag mod-
ule) covered with yellow insulation tape either just before the harness connectors or for the com-
plete harness are related to the SRS.

PRECAUTION

RS-2

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