Murano Cross Cabriolet Z51 (2012 year). Manual - part 96

The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the “SRS AIR BAG” and “SEAT BELT” of this
Service Manual.

WARNING:

Always observe the following items for preventing accidental activation.
• To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in

the event of a collision that would result in air bag inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.

• Improper maintenance, including incorrect removal and installation of the SRS, can lead to personal

injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag
Module, see “SRS AIR BAG”.

• Never use electrical test equipment on any circuit related to the SRS unless instructed to in this Ser-

vice Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or harness
connectors.

PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS

WARNING:

Always observe the following items for preventing accidental activation.
• When working near the Air Bag Diagnosis Sensor Unit or other Air Bag System sensors with the

ignition ON or engine running, never use air or electric power tools or strike near the sensor(s) with
a hammer. Heavy vibration could activate the sensor(s) and deploy the air bag(s), possibly causing
serious injury.

• When using air or electric power tools or hammers, always switch the ignition OFF, disconnect the

battery, and wait at least 3 minutes before performing any service.

Precaution for Battery Service

INFOID:0000000007564939

Before disconnecting the battery, lower both the driver and passenger windows. This will prevent any interfer-
ence between the window edge and the vehicle when the door is opened/closed. During normal operation, the
window slightly raises and lowers automatically to prevent any window to vehicle interference. The automatic
window function will not work with the battery disconnected.

Service Notice or Precautions for Steering System

INFOID:0000000007564940

• In case of removing steering gear assembly, make the final tightening with grounded and unloaded vehicle

condition, and then check wheel alignment.

• Observe the following precautions when disassembling.
- Before disassembly, thoroughly clean the outside of the unit.
- Disassembly should be done in a clean work area. It is important to prevent the internal parts from becoming

contaminated by dirt or other foreign matter.

- For easier and proper assembly, place disassembled parts in order on a parts rack.
- Use nylon cloth or paper towels to clean the parts; common shop rags can leave lint that might interfere with

their operation.

- Never reuse non-reusable parts.
- Before assembling, apply the specified grease to the directed parts.

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2012 Murano CrossCabriolet

ST-4

< PREPARATION >

PREPARATION

PREPARATION

Special Service Tools

INFOID:0000000007564941

The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.

Tool number
(Kent-Moore No.)
Tool name

Description

ST27180001
(J-25726-A)
Steering wheel puller

Removing steering wheel

ST3127S000
(J-25765-A)
Preload gauge

• Measuring steering wheel turning torque
• Measuring steering column rotating torque
• Measuring ball joint rotating torque
• Measuring pinion rotating torque

KV48104400
(

—

)

Teflon ring correcting tool
a: 50 mm (1.97 in) dia.
b: 36 mm (1.42 in) dia.
c: 100 mm (3.94 in)

Installing rack Teflon ring

KV48103400
(

—

)

Preload adapter

Measuring rotating torque

ST35300000
(

—

)

Drift
a: 45.1 mm (1.776 in) dia.
b: 59.0 mm (2.323 in) dia.

Installing oil pump oil seal

ZZA0819D

ZZA0806D

S-NT550

ZZA0824D

ZZA0881D

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PREPARATION

ST-5

< PREPARATION >

Commercial Service Tools

INFOID:0000000007564942

KV48103500
(J-26357)
Oil pressure gauge

Measuring oil pump relief pressure

KV48102500
(J-33914)
Oil pressure gauge adapter

Measuring oil pump relief pressure

Tool number
(Kent-Moore No.)
Tool name

Description

S-NT547

S-NT542

Tool name

Description

Power tool

Loosening bolts and nuts

Ball joint remover

Removing steering outer socket

Open head

Tightening end cover assembly

PBIC0190E

S-NT146

ZZA0822D

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< PREPARATION >

PREPARATION

Drift
a: 15 mm (0.59 in) dia.
b: 10 mm (0.39 in) dia.

Installing rotor snap ring

Drift
a: 36 mm (1.42 in) dia.
b: 20 mm (0.79 in) dia.

Installing oil pump oil seal

Tool name

Description

S-NT474

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COMPONENT PARTS

ST-7

< SYSTEM DESCRIPTION >

SYSTEM DESCRIPTION

COMPONENT PARTS

Component Parts Location (Heated Steering Wheel)

INFOID:0000000007564943

Component Description (Heated Steering Wheel)

INFOID:0000000007564944

Heated Steering Wheel

INFOID:0000000007564945

The heated steering wheel is activated by the power supply from the heated steering wheel relay.
Furthermore, the heated steering wheel incorporates a heating element and a thermostat to control heated
steering wheel temperatures.
• Heating element: Heat is generated by the passage of an electric current.
• Thermostat: ON/OFF operation of power supply at a certain temperature.

Heated Steering Wheel Switch

INFOID:0000000007564946

• Controls the heated steering wheel relay and operates the heated steering wheel system.

The heated steering wheel switch incorporates a timer and turns OFF the heated steering wheel relay when
operating time reaches a certain time.

- Timer: ON/OFF operation of the heated steering wheel relay at a certain time.
• Turns the indicator lamp ON when the system is activated.

Heated Steering Wheel Relay

INFOID:0000000007564947

Operates the heated steering system with the control signal from the heated steering wheel switch.

Heated steering wheel relay
Refer to

PG-41, "Main Harness"

Heated steering wheel switch

Heated steering wheel

JPGIA0195ZZ

Part name

Reference/Function

Heated steering wheel

Heating element

Refer to

ST-7, "Heated Steering Wheel"

Thermostat

Heated steering wheel relay

Refer to

ST-7, "Heated Steering Wheel Relay"

Heated steering wheel switch

Timer

Refer to

ST-7, "Heated Steering Wheel Switch"

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< SYSTEM DESCRIPTION >

SYSTEM

SYSTEM

System Description (Heated Steering Wheel)

INFOID:0000000007564948

The heated steering wheel switch controls the heated steering wheel relay. When the heated steering wheel
switch is turned on, the heated steering wheel relay is energized and the heated steering wheel system will
operate. The heated steering wheel system will turn off when the heated steering wheel temperature reaches
approximately 30

C (86

F). Heated steering wheel system operation can also be canceled by pressing the

heated steering wheel switch again. In addition, the heated steering wheel switch incorporates a timer and
turns OFF the heated steering wheel relay to exit the heated steering wheel system when the operating time
reaches a certain time.
NOTE:
If the surface temperature of the steering wheel is below 20

C (68

F), the system will heat the steering wheel

and cycle off and on to maintain a temperature above 20

C (68

F). The indicator lamp will remain on as long

as the system is on. Push the switch again to turn the heated steering wheel system off manually. The indica-
tor lamp will go off.

SYSTEM DIAGRAM

JSGIA0826GB

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2012 Murano CrossCabriolet

HEATED STEERING WHEEL

ST-9

< WIRING DIAGRAM >

WIRING DIAGRAM

HEATED STEERING WHEEL

Wiring Diagram

INFOID:0000000007564949

For connector terminal arrangements, harness layouts, and alphabets in a

(option abbreviation; if not

described in wiring diagram), refer to

GI-12, "Connector Information"

JCGWA0348GB

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< BASIC INSPECTION >

DIAGNOSIS AND REPAIR WORK FLOW

BASIC INSPECTION

DIAGNOSIS AND REPAIR WORK FLOW

WorkFlow (Heated Steering Wheel)

INFOID:0000000007564950

DETAILED FLOW

OBTAIN INFORMATION ABOUT SYMPTOM

Interview the customer to obtain the malfunction information (conditions and environment when the malfunc-
tion occurred) as much as possible when the customer brings the vehicle in.

>> GO TO 2.

REPRODUCE THE MALFUNCTION INFORMATION

Check the malfunction on the vehicle that the customer describes.
Inspect the relation of the symptoms and the condition when the symptoms occur.

>> GO TO 3.

IDENTIFY THE MALFUNCTIONING SYSTEM WITH “SYMPTOM DIAGNOSIS”

Use “Symptom diagnosis” from the symptom inspection result in step 2 and then identify where to start per-
forming the diagnosis based on possible causes and symptoms.

>> GO TO 4.

IDENTIFY THE MALFUNCTIONING PARTS WITH “COMPONENT DIAGNOSIS”

Perform the diagnosis with “Component diagnosis” of the applicable system.

>> GO TO 5.

REPAIR OR REPLACE THE MALFUNCTIONING PARTS

Repair or replace the specified malfunctioning parts.

>> GO TO 6.

FINAL CHECK

Check that malfunctions are not reproduced when obtaining the malfunction information from the customer,
referring to the symptom inspection result in step 2.

Are the malfunctions corrected?

YES

>> INSPECTION END

>> GO TO 2.

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2012 Murano CrossCabriolet

STEERING WHEEL

ST-11

< BASIC INSPECTION >

STEERING WHEEL

Inspection

INFOID:0000000007564951

NEUTRAL POSITION STEERING WHEEL

Check that steering gear assembly, steering column assembly and steering wheel are installed in the cor-
rect position.

Check wheel alignment within specification. Refer to

FSU-7, "Inspection"

Set the vehicle to the straight-ahead position and confirm steering wheel is in the neutral position.
• Loosen outer socket lock nut and turn inner socket to left and right equally to make fine adjustments if

steering wheel is not in the neutral position.

CAUTION:

If the adjustment is performed by using the inner socket, check wheel alignment after the adjust-
ment. Refer to

FSU-7, "Inspection"

STEERING WHEEL TURNING FORCE

Park the vehicle on a level and dry surface, set parking brake.

Tires need to be inflated normal pressure. Refer to

WT-49, "Tire Air Pressure"

Start the engine.

Bring power steering fluid up to adequate operating temperature.

Check steering wheel turning force when steering wheel has
been turned 540

from neutral position.

If steering wheel turning force is out of the specification, check
rack sliding force and relief hydraulic pressure of oil pump.
Regarding relief hydraulic pressure of oil pump, refer to

ST-51,

"Inspection"

RACK SLIDING FORCE

Disconnect lower joint and steering knuckle from steering gear assembly. Refer to

ST-34, "Exploded

View"

Start and run the engine at idle to make sure steering fluid has reached normal operating temperature.

While pulling outer socket slowly in

11.5 mm (

0.453 in) range

from neutral position, make sure rack sliding force is within
specification.

If rack sliding force is not within specification, overhaul steering
gear assembly.

FRONT WHEEL TURNING ANGLE

Perform toe-in inspection. Refer to

FSU-7, "Inspection"

CAUTION:

Perform front wheel turning angle inspection, after toe-in inspection.

Fluid temperature

: 50 – 80

C (122 – 176

Standard

Steering wheel turning
force

: Refer to

ST-56, "Steering

Wheel Turning Force"

JSGIA0027ZZ

Fluid temperature

: 50 – 80

C (122 – 176

Standard

Rack sliding force

: Refer to

ST-57, "Rack

Sliding Force"

SST090B

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ST-12

< BASIC INSPECTION >

STEERING WHEEL

Place front wheels on turning radius gauges and rear wheels on
stands, so that vehicle can be level.

Check the maximum inner and outer wheel turning angles for LH
and RH road wheels.

• With the engine at idle, turn steering wheel from full left stop to

full right stop and measure the turning angles.

• Check the following items when turning angle is out of the

standard.

- Check the neutral position of the rack stroke (L).

- Disassemble steering gear assembly to check the cause that

rack stroke is outside of the standard.

• Steering angles are not adjustable. Check steering gear

assembly, steering column assembly and front suspension
components for wear or damage if any of the turning angles are different from the specified value.
Replace any of them, if any non-standard condition exists.

FAA0016D

Standard

Inner wheel (Angle: A)

: Refer to

ST-56, "Steering

Angle"

Outer wheel (Angle: B)

: Refer to

ST-56, "Steering

Angle"

SGIA0055E

Standard