Murano Cross Cabriolet Z51 (2013 year). Manual

ST-54

< REMOVAL AND INSTALLATION >

HYDRAULIC LINE

• Never apply fluid to the hose (1) and tube (2).
• Insert hose securely until it contacts spool (A) of tube.
• Leave clearance (L) when installing clamp (3).

• Install eye bolt with eye joint (assembled to high pressure

hose) (B) protrusion (A) facing with pump side cutout, and
then tighten it to the specified torque after tightening by hand.
Refer to

ST-53, "Exploded View"

• Securely insert harness connector to pressure sensor.
• Apply power steering fluid to around copper washer, then

install eye bolt.

• Never reuse copper washer.

Standard

: 3 – 8 mm (0.12 – 0.31 in)

JSGIA0118ZZ

SGIA1379E

Revision: 2012 October

2013 Murano CrossCabriolet

HEATED STEERING WHEEL SWITCH

ST-55

< REMOVAL AND INSTALLATION >

HEATED STEERING WHEEL SWITCH

Removal and Installation

INFOID:0000000008461748

REMOVAL

Remove Instrument lower panel LH. Refer to

IP-13, "Removal and Installation"

Remove heated steering wheel switch.

INSTALLATION

Install in the reverse order of removal.

Revision: 2012 October

2013 Murano CrossCabriolet

ST-56

< SERVICE DATA AND SPECIFICATIONS (SDS)

SERVICE DATA AND SPECIFICATIONS (SDS)

SERVICE DATA AND SPECIFICATIONS (SDS)

General Specifications

INFOID:0000000008461749

Steering Wheel Axial End Play and Play

INFOID:0000000008461750

Unit: mm (in)

Steering Wheel Turning Force

INFOID:0000000008461751

Unit: N·m (kg-m, in-lb)

Steering Angle

INFOID:0000000008461752

Unit: Degree minute (Decimal degree)

Steering Column Length

INFOID:0000000008461753

Unit: mm (in)

Steering Column Mounting Dimensions

INFOID:0000000008461754

Unit: mm (in)

Steering Column Operating Range

INFOID:0000000008461755

Steering gear model

PR26AF

Fluid capacity (Approx.)

(US qt, lmp qt)

1.0 (1-1/8, 7/8)

Item

Standard

Steering wheel axial end play

0 (0)

Steering wheel play on the outer circumference

0 – 35 (0 – 1.38)

Item

Standard

Steering wheel turning force

7.45 (0.76, 66)

Item

Standard

Inner wheel

Minimum

′

(32.0

)

Nominal

′

(35.0

)

Maximum

′

(36.0

)

Outer wheel

Nominal

′

(30.5

)

Item

Standard

Steering column length

463 (18.23)

Item

Standard

Mounting dimension

30 (1.18) or less

Item

Standard

Tilt operating range

Telescopic operating range

40 mm (1.57 in)

Rotating torque

0.49 N·m (0.05 kg-m, 4 in-lb)

Revision: 2012 October

2013 Murano CrossCabriolet

SERVICE DATA AND SPECIFICATIONS (SDS)

ST-57

< SERVICE DATA AND SPECIFICATIONS (SDS)

Lower Shaft Length

INFOID:0000000008461756

Unit: mm (in)

Rack Sliding Force

INFOID:0000000008461757

Unit: N (kg, lb)

Rack Stroke

INFOID:0000000008461758

Unit: mm (in)

Socket Swing Force and Rotating Torque

INFOID:0000000008461759

SWING FORCE

Unit: N (kg, lb)

ROTATING TORQUE

Unit: N·m (kg-m, in-lb)

Socket Axial End Play

INFOID:0000000008461760

Unit: mm (in)

Inner Socket Length

INFOID:0000000008461761

Unit: mm (in)

Relief Oil Pressure

INFOID:0000000008461762

Unit: kPa (kg/cm

, psi)

Item

Standard

Lower shaft length

160 (6.3) or more

Item

Standard

Rack sliding force

227 – 305 (23.2 – 31.1, 51.1 – 68.5)

Item

Standard

Rack stroke neutral position

68.0 (2.677)

Item

Standard

Outer socket

4.81 – 45.7 (0.5 – 4.6, 1.1 – 10.2)

Inner socket

8.9 – 64 (0.91 – 6.5, 2.01 – 14.3)

Item

Standard

Outer socket

0.3 – 2.9 (0.03 – 0.29, 3 – 25)

Item

Standard

Outer socket

0.5 (0.02) or less

Inner socket

0.2 (0.008) or less

Item

Standard

Inner socket length

120.3 (4.74)

Item

Standard

Relief oil pressure

9,500 – 10,300 (96.9 – 105.1, 1,378 – 1,494)

Revision: 2012 October

2013 Murano CrossCabriolet

STC-2

< PRECAUTION >

PRECAUTIONS

PRECAUTION

PRECAUTIONS

Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"

INFOID:0000000008461618

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:0000000008461619

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 Procedure Precautions for Models with a Pop-up Roll Bar

INFOID:0000000008461620

WARNING:

Always observe the following items for preventing accidental activation.
• Risk of passenger injury or death may increase if the pop-up roll bar does not deploy during a roll

over collision. In order to reduce the chance of an incident where the pop-up roll bar is inoperative,
all maintenance must be performed by a NISSAN or INFINITI dealer.

• Before removing and installing the pop-up roll bar component parts and harness, always turn the

ignition switch OFF, disconnect the battery negative terminal, and wait for 3 minutes or more. (The
purpose of this operation is to discharge electricity that is accumulated in the auxiliary power supply
circuit in the air bag diagnosis sensor unit.)

• When repairing, removing, and installing a pop-up roll bar, always refer to SRS AIR BAG and SRS

AIR BAG CONTROL warnings in the Service Manual.

Revision: 2012 October

2013 Murano CrossCabriolet

COMPONENT PARTS

STC-3

< SYSTEM DESCRIPTION >

STC

SYSTEM DESCRIPTION

COMPONENT PARTS

Component Parts Location

INFOID:0000000008461621

Component Description

INFOID:0000000008461622

Power Steering Control Unit

INFOID:0000000008461623

• Signals from various sensors control the driving voltage to power steering solenoid valve.
• Power steering control unit controls the driving voltage to power steering solenoid valve for maintaining the

power steering assist force when the fail-safe function is activated. (The engine speed signals control EPS
system if any vehicle speed signal error is detected.)

Power Steering Solenoid Valve

INFOID:0000000008461624

Power steering solenoid valve controls the power steering oil pressure in the gear housing assembly.

Power steering solenoid valve

Power steering control unit

Steering gear assembly

Glove box assembly removed

: Vehicle front

JSGIA0301ZZ

Component parts

Reference/Function

Power steering control unit

STC-3, "Power Steering Control Unit"

Combination meter

STC-16, "Description"

ECM

STC-14, "Description"

Power steering solenoid valve

STC-3, "Power Steering Solenoid Valve"

Revision: 2012 October

2013 Murano CrossCabriolet

STC-4

< SYSTEM DESCRIPTION >

SYSTEM

SYSTEM

EPS SYSTEM

EPS SYSTEM : System Diagram

INFOID:0000000008461625

CONTROL DIAGRAM

CROSS-SECTIONAL VIEW

EPS SYSTEM : System Description

INFOID:0000000008461626

• The EPS system controls the power steering solenoid valve through the power steering control unit.

JSGIA0119GB

Combination meter

Power steering control unit

Power steering solenoid valve

Steering gear assembly

Gear housing assembly

Gear sub-assembly

Pinion

Power steering oil pump

Reservoir tank

JSGIA0376ZZ

Revision: 2012 October

2013 Murano CrossCabriolet

SYSTEM

STC-5

< SYSTEM DESCRIPTION >

STC

• The valve driving voltage to control the power steering solenoid

valve varies according to the vehicle speed.

OPERATION PRINCIPLE

During Parking (When Turning The Steering Wheel To The Right.)

Power steering solenoid valve is closed while a vehicle is stopped.

Pinion “1R”, “2R” and “3R” are closed depending on steering torque of steering wheel.

Oil pressure “P” in the gear housing assembly is the sum of oil pressures occurred in “2R” and “3R”. This
results in a light steering force because of high pressure.

During High-speed Operation

Power steering solenoid valve is opened during high-speed operation.

Pinion “1R”, “2R” and “3R” are closed depending on steering torque of steering wheel.

Oil pressure “2R” does not occur because the power steering solenoid valve is on full throttle.

Oil pressure “P” in the gear housing assembly includes only oil pressure occurred in “3R” and results in a
heavy steering force.

EPS SYSTEM : Fail-Safe

INFOID:0000000008461627

EPS system

JSGIA0374GB

JSGIA0020GB

JSGIA0021GB

Revision: 2012 October

2013 Murano CrossCabriolet

STC-6

< SYSTEM DESCRIPTION >

SYSTEM

• EPS system enters the fail-safe mode (that allows the steering

force to be controlled without impairing the drivability) if any of the
input/output values to/from EPS system (power steering control
unit) deviate from the standard range.
NOTE:
The system enters the fail-safe mode if the engine speed remains
at 1,500 rpm or more for over 10 seconds while the vehicle is
stopped. This is normal.

• The fail-safe function is canceled when a vehicle speed signal of 2

km/h (1.2 MPH) or more is inputted or the ignition switch is turned
OFF

→

ON. EPS system restores the normal operation at that time.

JSGIA0368GB

Mode

Warn-

ing lamp

DTC

Detection point (malfunction part)

Error area and root cause

Fail-safe

function

—

Vehicle speed signal input

• Engine speed is 1,500 rpm or more and there is no vehicle

speed signal input for over 10 seconds during vehicle travel.

• Vehicle speed signal has abruptly dropped from 30 km/h (19

MPH) or more to 2 km/h (1.2 MPH) or less within 1.4 sec-
onds.

Revision: 2012 October

2013 Murano CrossCabriolet

POWER STEERING CONTROL UNIT

STC-7

< ECU DIAGNOSIS INFORMATION >

STC

ECU DIAGNOSIS INFORMATION

POWER STEERING CONTROL UNIT

Reference Value

INFOID:0000000008461628

TERMINAL LAYOUT

PHYSICAL VALUES

JSGIA0023ZZ

Terminal No.

(Wire color)

Description

Condition

Value (Approx.)

Signal name

Input/

Output

(Y)

Ground

Power steering solenoid
valve voltage

Output

Vehicle speed: 0 km/h (0 MPH)
(Engine is running)

4.4 – 6.6 V

Vehicle speed: 100 km/h (62 MPH)

2.4 – 3.6 V

(G)

Ground

Ignition switch power
supply

Input

Ignition switch: ON

Battery voltage

Ignition switch: OFF

0 V

(LG)

Ground

Power steering solenoid
valve ground

—

Always

0 V

(B)

Ground

—

Always

0 V

(P)

Ground

Vehicle speed signal

Input

Vehicle speed: 40 km/h (25 MPH)

CAUTION:

Check air pressure of tire under
standard condition.

NOTE:
The maximum voltage varies de-
pending on the specification
(destination unit).

JSNIA0015GB

Revision: 2012 October

2013 Murano CrossCabriolet

STC-8

< ECU DIAGNOSIS INFORMATION >

POWER STEERING CONTROL UNIT

CAUTION:

When using circuit tester or oscilloscope to measure voltage for inspection, be sure not to forcibly extend any connector ter-
minals.

Fail-Safe

INFOID:0000000008461629

EPS system

• EPS system enters the fail-safe mode (that allows the steering

• The fail-safe function is canceled when a vehicle speed signal of 2

km/h (1.2 MPH) or more is inputted or the ignition switch is turned
OFF

→

ON. EPS system restores the normal operation at that time.

(V)

Ground

Engine speed signal

Input

Engine is running
• Warm-up condition
• Idle speed

Engine is running
• Warm-up condition
• Engine speed: Approx. 2,000 rpm

Terminal No.

(Wire color)

Description

Condition

Value (Approx.)

Signal name

Input/

Output

JMBIA0076GB

JMBIA0077GB

JSGIA0368GB

Mode

Warn-

ing lamp

DTC

Detection point (malfunction part)

Error area and root cause

Fail-safe

function

—

Vehicle speed signal input

• Engine speed is 1,500 rpm or more and there is no vehicle

speed signal input for over 10 seconds during vehicle travel.

• Vehicle speed signal has abruptly dropped from 30 km/h (19

MPH) or more to 2 km/h (1.2 MPH) or less within 1.4 sec-
onds.

Revision: 2012 October

2013 Murano CrossCabriolet

POWER STEERING CONTROL SYSTEM

STC-9

< WIRING DIAGRAM >

STC

WIRING DIAGRAM

POWER STEERING CONTROL SYSTEM

Wiring Diagram - ELECTRONICALLY CONTROLLED POWER STEERING SYSTEM -

INFOID:0000000008461630

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

(option abbreviation; if not

described in wiring diagram), refer to

GI-12, "Connector Information"

JCGWA0351GB

Revision: 2012 October

2013 Murano CrossCabriolet

STC-10

< BASIC INSPECTION >

DIAGNOSIS AND REPAIR WORK FLOW

BASIC INSPECTION

DIAGNOSIS AND REPAIR WORK FLOW

Work Flow

INFOID:0000000008461631

DETAILED FLOW

COLLECT THE INFORMATION FROM THE CUSTOMER

It is also important to clarify customer complaints before inspection. First of all, reproduce symptoms and
understand them fully. Ask customer about his/her complaints carefully. In some cases, it is necessary to
check symptoms by driving vehicle with customer.

CAUTION:

Customers are not professional. It is dangerous to make an easy guess like “maybe the customer
means that...,” or “maybe the customer mentions this symptom”.

>> GO TO 2.

CHECK THE STATUS

Power steering fluid leakage and check the power steering fluid level. Refer to

ST-27, "Inspection"

Check the drive belt tension. Refer to

EM-14, "Checking"

Check the power steering gear for damages, cracks and fluid leakage. Refer to

ST-45, "Inspection"

Check the relief oil pressure. Refer to

ST-51, "Inspection"

>> GO TO 3.

DIAGNOSIS CHART BY SYMPTOM

Perform the diagnosis by symptom. Refer to

STC-18, "Diagnosis Procedure"

>> GO TO 4.

FINAL CHECK

Check the input/output standard values for the power steering control unit.
Are the power steering control unit input/output values within standard ranges respectively?

YES

>> INSPECTION END

>> GO TO 2.

Revision: 2012 October

2013 Murano CrossCabriolet

POWER SUPPLY AND GROUND CIRCUIT

STC-11

< DTC/CIRCUIT DIAGNOSIS >

STC

DTC/CIRCUIT DIAGNOSIS

POWER SUPPLY AND GROUND CIRCUIT

Description

INFOID:0000000008461632

Power supply to EPS system

Diagnosis Procedure

INFOID:0000000008461633

CHECK POWER SUPPLY

Turn the ignition switch OFF.

Disconnect power steering control unit harness connector.

Check voltage between power steering control unit harness connector and ground.

Turn the ignition switch ON.

CAUTION:

Never start the engine.

Check voltage between power steering control unit harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 2.

Check the following. If any items are damaged, repair or replace damaged parts.

• 10A fuses (#3) open
- Harness for short or open between ignition switch and power steering control unit harness con-

nector No. 3 terminal.

- Ignition switch. Refer to

PCS-66, "Component Inspection"

CHECK GROUND CIRCUIT

Turn the ignition switch OFF.

Check continuity between power steering control unit harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 3.

>> Repair open circuit or short to power in harness or connectors.

CHECK TERMINALS AND HARNESS CONNECTORS

Check power steering control unit pin terminals for damage or loose connection with harness connector.

Is the inspection result normal?

YES

>> INSPECTION END

>> Repair or replace damaged parts.

Power steering control unit

—

Voltage

(Approx.)

Connector

Terminal

M61

3 Ground

Power steering control unit

—

Voltage

(Approx.)

Connector

Terminal

M61

3 Ground

Battery

voltage

Power steering control unit

—

Continuity

Connector

Terminal

M61

6 Ground

Existed

Revision: 2012 October

2013 Murano CrossCabriolet

STC-12

< DTC/CIRCUIT DIAGNOSIS >

POWER STEERING SOLENOID VALVE

POWER STEERING SOLENOID VALVE

Diagnosis Procedure

INFOID:0000000008461634

CHECK POWER STEERING SOLENOID VALVE SIGNAL

Check voltage between power steering control unit harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 4.

>> GO TO 2.

CHECK HARNESS BETWEEN POWER STEERING SOLENOID VALVE AND POWER STEERING CON-

TROL UNIT

Turn the ignition switch OFF.

Disconnect power steering solenoid valve harness connector.

Disconnect power steering control unit harness connector.

Check the continuity between power steering solenoid valve harness connector and the power steering
control unit harness connector.

Check continuity between power steering control unit harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 3.

>> Repair or replace damaged parts.

CHECK POWER STEERING SOLENOID VALVE

Check power steering solenoid valve. Refer to

STC-13, "Component Inspection"

Is the inspection result normal?

YES

>> GO TO 4.

>> Replace gear-sub assembly. Refer to

ST-37, "Exploded View"

CHECK TERMINALS AND HARNESS CONNECTORS

• Check power steering control unit pin terminals for damage or loose connection with harness connector.
• Check power steering solenoid valve pin terminals for damage or loose connection with harness connector.

Is the inspection result normal?

YES

>> INSPECTION END

>> Repair or replace damaged parts.

Power steering control unit

—

Condition

Voltage

(Approx.)

Connector

Terminal

M61

Ground

Vehicle speed: 0 km/h (0 MPH)
(Engine is running)

4.4 – 6.6 V

Vehicle speed: 100 km/h (62 MPH)

2.4 – 3.6 V

Power steering solenoid valve

Power steering control unit

Continuity

Connector

Terminal

Connector

Terminal

E52

M61

Existed

E52

M61

Existed

Power steering control unit

—

Continuity

Connector

Terminal

M61

Ground

Not existed

M61

Revision: 2012 October

2013 Murano CrossCabriolet

Murano Cross Cabriolet Z51 (2013 year). Manual - part 98