Nissan Murano Z50 (2004 year). Manual — part 126

GI-6

PRECAUTIONS

Revision: 2004 November

2004 Murano

Precautions for Multiport Fuel Injection System or Engine Control System

AAS000CM

●

Before connecting or disconnecting any harness connector for
the multiport fuel injection system or ECM:
Turn ignition switch to “OFF” position.
Disconnect negative battery terminal.
Otherwise, there may be damage to ECM.

●

Before disconnecting pressurized fuel line from fuel pump to
injectors, be sure to release fuel pressure.

●

Be careful not to jar components such as ECM and mass air
flow sensor.

Precautions for Hoses

AAS000CO

HOSE REMOVAL AND INSTALLATION

●

To prevent damage to rubber hose, do not pry off rubber hose
with tapered tool or screwdriver.

●

To reinstall the rubber hose securely, make sure that hose inser-
tion length and orientation is correct. (If tube is equipped with
hose stopper, insert rubber hose into tube until it butts up
against hose stopper.)

HOSE CLAMPING

●

If old rubber hose is re-used, install hose clamp in its original
position (at the indentation where the old clamp was). If there is
a trace of tube bulging left on the old rubber hose, align rubber
hose at that position.

●

Discard old clamps; replace with new ones.

SGI787

SMA019D

SMA020D

SMA021D

PRECAUTIONS

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After installing plate clamps, apply force to them in the direction
of the arrow, tightening rubber hose equally all around.

Precautions for Engine Oils

AAS000CP

Prolonged and repeated contact with used engine oil may cause skin cancer. Try to avoid direct skin contact
with used oil.
If skin contact is made, wash thoroughly with soap or hand cleaner as soon as possible.

HEALTH PROTECTION PRECAUTIONS

●

Avoid prolonged and repeated contact with oils, particularly used engine oils.

●

Wear protective clothing, including impervious gloves where practicable.

●

Do not put oily rags in pockets.

●

Avoid contaminating clothes, particularly underpants, with oil.

●

Heavily soiled clothing and oil-impregnated footwear should not be worn. Overalls must be cleaned regu-
larly.

●

First aid treatment should be obtained immediately for open cuts and wounds.

●

Use barrier creams, applying them before each work period, to help the removal of oil from the skin.

●

Wash with soap and water to ensure all oil is removed (skin cleansers and nail brushes will help). Prepa-
rations containing lanolin replace the natural skin oils which have been removed.

●

Do not use gasoline, kerosene, diesel fuel, gas oil, thinners or solvents for cleaning skin.

●

If skin disorders develop, obtain medical advice without delay.

●

Where practical, degrease components prior to handling.

●

Where there is a risk of eye contact, eye protection should be worn, for example, chemical goggles or face
shields; in addition an eye wash facility should be provided.

ENVIRONMENTAL PROTECTION PRECAUTIONS

Dispose of used oil and used oil filters through authorized waste disposal contractors to licensed waste dis-
posal sites, or to the waste oil reclamation trade. If in doubt, contact the local authority for advice on disposal
facilities.
It is illegal to pour used oil on to the ground, down sewers or drains, or into water sources.
The regulations concerning pollution vary between regions.

Precautions for Air Conditioning

AAS000CQ

Use an approved refrigerant recovery unit any time the air conditioning system must be discharged. Refer to
ATC/MTC section “HFC-134a (R-134a) Service Procedure”, “REFRIGERANT LINES” for specific instructions.

SMA022D

GI-8

HOW TO USE THIS MANUAL

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HOW TO USE THIS MANUAL

PFP:00008

Description

AAS000IN

This volume explains “Removal, Disassembly, Installation, Inspection and Adjustment” and “Trouble Diag-
noses”.

Terms

AAS000IO

●

The captions WARNING and CAUTION warn you of steps that must be followed to prevent personal
injury and/or damage to some part of the vehicle.
WARNING indicates the possibility of personal injury if instructions are not followed.
CAUTION indicates the possibility of component damage if instructions are not followed.
BOLD TYPED STATEMENTS except WARNING and CAUTION give you helpful information.
Standard value:Tolerance at inspection and adjustment.
Limit value:The maximum or minimum limit value that should not be exceeded at inspection and adjust-
ment.

Units

AAS000IP

●

The UNITS given in this manual are primarily expressed as the SI UNIT (International System of Unit),
and alternatively expressed in the metric system and in the yard/pound system.
Also with regard to tightening torque of bolts and nuts, there are descriptions both about range and about
the standard tightening torque.

“Example”
Range

Standard

Contents

AAS000IQ

●

ALPHABETICAL INDEX is provided at the end of this manual so that you can rapidly find the item and
page you are searching for.

●

A QUICK REFERENCE INDEX, a black tab (e.g.

) is provided on the first page. You can quickly find

the first page of each section by matching it to the section's black tab.

●

THE CONTENTS are listed on the first page of each section.

●

THE TITLE is indicated on the upper portion of each page and shows the part or system.

●

THE PAGE NUMBER of each section consists of two or three letters which designate the particular sec-
tion and a number (e.g. “BR-5”).

●

THE SMALL ILLUSTRATIONS show the important steps such as inspection, use of special tools, knacks
of work and hidden or tricky steps which are not shown in the previous large illustrations.
Assembly, inspection and adjustment procedures for the complicated units such as the automatic tran-
saxle or transmission, etc. are presented in a step-by-step format where necessary.

Outer Socket Lock Nut

: 59 - 78 N·m (6.0 - 8.0 kg-m, 43 - 58 ft-lb)

Drive Shaft Installation Bolt

: 44.3 N·m (4.5 kg-m, 33 ft-lb)

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Components

AAS000KT

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THE LARGE ILLUSTRATIONS are exploded views (See the following) and contain tightening torques,
lubrication points, section number of the PARTS CATALOG (e.g. SEC. 440) and other information neces-
sary to perform repairs.
The illustrations should be used in reference to service matters only. When ordering parts, refer to the
appropriate PARTS CATALOG .
Components shown in an illustration may be identified by a circled number. When this style of illustration
is used, the text description of the components will follow the illustration.

SYMBOLS

SAIA0399E

SYMBOL

DESCRIPTION

Tightening torque
The tightening torque specifications of bolts and nuts may be presented as either a range or a standard tightening
torque.

Should be lubricated with grease. Unless otherwise indicated, use recommended multi-purpose grease.

Should be lubricated with oil.

Sealing point

Checking point

Always replace after every disassembly.

P

Apply petroleum jelly.

Apply ATF.

Select with proper thickness.

Adjustment is required.

GI-10

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How to Follow Trouble Diagnoses

AAS000CW

DESCRIPTION

NOTICE:
Trouble diagnoses indicate work procedures required to diagnose problems effectively. Observe the following
instructions before diagnosing.

1.

Before performing trouble diagnoses, read the “Preliminary Check”, the “Symptom Chart” or the
“Work Flow”.

2.

After repairs, re-check that the problem has been completely eliminated.

3.

Refer to Component Parts and Harness Connector Location for the Systems described in each
section for identification/location of components and harness connectors.

4.

Refer to the Circuit Diagram for quick pinpoint check.
If you need to check circuit continuity between harness connectors in more detail, such as when a
sub-harness is used, refer to Wiring Diagram in each individual section and Harness Layout in PG
section for identification of harness connectors.

5.

When checking circuit continuity, ignition switch should be OFF.

6.

Before checking voltage at connectors, check battery voltage.

7.

After accomplishing the Diagnostic Procedures and Electrical Components Inspection, make sure
that all harness connectors are reconnected as they were.

HOW TO FOLLOW TEST GROUPS IN TROUBLE DIAGNOSES

1.

Work and diagnostic procedure
Start to diagnose a problem using procedures indicated in enclosed test groups.

2.

Questions and required results
Questions and required results are indicated in bold type in test group.
The meaning of are as follows:

SAIA0256E

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3.

Symbol used in illustration
Symbols included in illustrations refer to measurements or procedures. Before diagnosing a problem,
familiarize yourself with each symbol. Refer to "Connector Symbols" in GI Section and "KEY TO SYM-
BOLS SIGNIFYING MEASUREMENTS OR PROCEDURES" below.

4.

Action items
Next action for each test group is indicated based on result of each question. Test group number is shown
in the left upper portion of each test group.

HARNESS WIRE COLOR AND CONNECTOR NUMBER INDICATION

There are two types of harness wire color and connector number indication.

TYPE 1: Harness Wire Color and Connector Number are Shown in Illustration

●

Letter designations next to test meter probe indicate harness
wire color.

●

Connector numbers in a single circle (e.g. M33) indicate har-
ness connectors.

●

Connector numbers in a double circle (e.g. F211) indicate com-
ponent connectors.

a. Battery voltage

→

11 - 14V or approximately 12V

b. Voltage

: Approximately 0V

→

Less than 1V

AGI070

GI-12

HOW TO USE THIS MANUAL

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TYPE 2: Harness Wire Color and Connector Number are Shown in Text

KEY TO SYMBOLS SIGNIFYING MEASUREMENTS OR PROCEDURES

SGI144A

Symbol

Symbol explanation

Symbol

Symbol explanation

Check after disconnecting the connec-
tor to be measured.

Procedure with Generic Scan Tool
(GST, OBD-II scan tool)

Check after connecting the connector
to be measured.

Procedure without CONSULT, CON-
SULT-II or GST

Insert key into ignition switch.

A/C switch is “OFF”.

Remove key from ignition switch.

A/C switch is “ON”.

Turn ignition switch to “OFF” position.

REC switch is “ON”.

Turn ignition switch to “ON” position.

REC switch is “OFF”.

Turn ignition switch to “START” posi-
tion.

Fan switch is “ON”. (At any position
except for “OFF” position)

Turn ignition switch from “OFF” to
“ACC” position.

Fan switch is “OFF”.

Turn ignition switch from “ACC” to
“OFF” position.

Apply positive voltage from battery
with fuse directly to components.

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Turn ignition switch from “OFF” to
“ON” position.

Drive vehicle.

Turn ignition switch from “ON” to
“OFF” position.

Disconnect battery negative cable.

Do not start engine, or check with
engine stopped.

Depress brake pedal.

Start engine, or check with engine run-
ning.

Release brake pedal.

Apply parking brake.

Depress accelerator pedal.

Release parking brake.

Release accelerator pedal.

Check after engine is warmed up suffi-
ciently.

Pin terminal check for SMJ type ECM
and TCM connectors.
For details regarding the terminal
arrangement, refer to the “ELEC-
TRICAL UNITS” electrical reference
page at the end of the manual.

Voltage should be measured with a
voltmeter.

Circuit resistance should be measured
with an ohmmeter.

Current should be measured with an
ammeter.

Pulse signal should be checked with
an oscilloscope.

Procedure with CONSULT-II

Procedure without CONSULT-II

Symbol

Symbol explanation

Symbol

Symbol explanation

GI-14

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How to Read Wiring Diagrams

AAS000CX

CONNECTOR SYMBOLS

Most of connector symbols in wiring diagrams are shown from the terminal side.

●

Connector symbols shown from the terminal side are enclosed
by a single line and followed by the direction mark.

●

Connector symbols shown from the harness side are enclosed
by a double line and followed by the direction mark.

●

Certain systems and components, especially those related to
OBD, may use a new style slide-locking type harness connector.
For description and how to disconnect, refer to PG section,
“Description”, “HARNESS CONNECTOR”.

●

Male and female terminals
Connector guides for male terminals are shown in black and
female terminals in white in wiring diagrams.

SAIA0257E

SGI363

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SAMPLE/WIRING DIAGRAM - EXAMPL -

●

For detail, refer to following “DESCRIPTION”.

SGI091A

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Optional Splice

DESCRIPTION

SGI942

Num-

ber

Item

Description

1

Power condition

●

This shows the condition when the system receives battery positive voltage (can be oper-
ated).

2

Fusible link

●

The double line shows that this is a fusible link.

●

The open circle shows current flow in, and the shaded circle shows current flow out.

3

Fusible link/fuse loca-
tion

●

This shows the location of the fusible link or fuse in the fusible link or fuse box. For arrange-
ment, refer to PG section, POWER SUPPLY ROUTING.

4

Fuse

●

The single line shows that this is a fuse.

●

The open circle shows current flow in, and the shaded circle shows current flow out.

5

Current rating

●

This shows the current rating of the fusible link or fuse.

6

Connectors

●

This shows that connector E3 is female and connector M1 is male.

●

The G/R wire is located in the 1A terminal of both connectors.

●

Terminal number with an alphabet (1A, 5B, etc.) indicates that the connector is SMJ connec-
tor. Refer to PG section, SMJ (SUPER MULTIPLE JUNCTION).

7

Optional splice

●

The open circle shows that the splice is optional depending on vehicle application.

8

Splice

●

The shaded circle shows that the splice is always on the vehicle.

9

Page crossing

●

This arrow shows that the circuit continues to an adjacent page.

●

The A will match with the A on the preceding or next page.

10

Common connector

●

The dotted lines between terminals show that these terminals are part of the same connector.

11

Option abbreviation

●

This shows that the circuit is optional depending on vehicle application.

12

Relay

●

This shows an internal representation of the relay. For details, refer to PG section, STAN-
DARDIZED RELAY.

13

Connectors

●

This shows that the connector is connected to the body or a terminal with bolt or nut.

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14

Wire color

●

This shows a code for the color of the wire.

B = Black
W = White
R = Red
G = Green
L = Blue
Y = Yellow
LG = Light Green

BR = Brown
OR or O = Orange
P = Pink
PU or V (Violet) = Purple
GY or GR = Gray
SB = Sky Blue
CH = Dark Brown
DG = Dark Green

When the wire color is striped, the base color is given first, followed by the stripe color as shown
below:
Example: L/W = Blue with White Stripe

15

Option description

●

This shows a description of the option abbreviation used on the page.

16

Switch

●

This shows that continuity exists between terminals 1 and 2 when the switch is in the A posi-
tion. Continuity exists between terminals 1 and 3 when the switch is in the B position.

17

Assembly parts

●

Connector terminal in component shows that it is a harness incorporated assembly.

18

Cell code

●

This identifies each page of the wiring diagram by section, system and wiring diagram page
number.

19

Current flow arrow

●

Arrow indicates electric current flow, especially where the direction of standard flow (vertically
downward or horizontally from left to right) is difficult to follow.

●

A double arrow “

” shows that current can flow in either direction depending on cir-

cuit operation.

20

System branch

●

This shows that the system branches to another system identified by cell code (section and
system).

21

Page crossing

●

This arrow shows that the circuit continues to another page identified by cell code.

●

The C will match with the C on another page within the system other than the next or preced-
ing pages.

22

Shielded line

●

The line enclosed by broken line circle shows shield wire.

23

Component box in
wave line

●

This shows that another part of the component is also shown on another page (indicated by
wave line) within the system.

24

Component name

●

This shows the name of a component.

25

Connector number

●

This shows the connector number.

●

The letter shows which harness the connector is located in.

●

Example: M : main harness. For detail and to locate the connector, refer to PG section "Main
Harness", “Harness Layout”. A coordinate grid is included for complex harnesses to aid in
locating connectors.

26

Ground (GND)

●

The line spliced and grounded under wire color shows that ground line is spliced at the
grounded connector.

27

Ground (GND)

●

This shows the ground connection. For detailed ground distribution information, refer to
"Ground Distribution" in PG section.

28

Connector views

●

This area shows the connector faces of the components in the wiring diagram on the page.

29

Common component

●

Connectors enclosed in broken line show that these connectors belong to the same compo-
nent.

30

Connector color

●

This shows a code for the color of the connector. For code meaning, refer to wire color codes,
Number 14 of this chart.

31

Fusible link and fuse
box

●

This shows the arrangement of fusible link(s) and fuse(s), used for connector views of
"POWER SUPPLY ROUTING" in PG section.
The open square shows current flow in, and the shaded square shows current flow out.

32

Reference area

●

This shows that more information on the Super Multiple Junction (SMJ) and Joint Connectors
(J/C) exists on the PG section. Refer to "Reference Area" for details.

Num-

ber

Item

Description

GI-18

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Harness Indication

●

Letter designations next to test meter probe indicate harness
(connector) wire color.

●

Connector numbers in a single circle M33 indicate harness con-
nectors.

Component Indication

Connector numbers in a double circle F211 indicate component connectors.

Switch Positions

Switches are shown in wiring diagrams as if the vehicle is in the “normal” condition.
A vehicle is in the “normal” condition when:

●

ignition switch is “OFF”,

●

doors, hood and trunk lid/back door are closed,

●

pedals are not depressed, and

●

parking brake is released.

AGI070

SGI860

HOW TO USE THIS MANUAL

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Detectable Lines and Non-Detectable Lines

In some wiring diagrams, two kinds of lines, representing wires, with different weight are used.

●

A line with regular weight (wider line) represents a “detectable
line for DTC (Diagnostic Trouble Code)”. A “detectable line for
DTC” is a circuit in which ECM can detect its malfunctions with
the on board diagnostic system.

●

A line with less weight (thinner line) represents a “non-detect-
able line for DTC”. A “non-detectable line for DTC” is a circuit in
which ECM cannot detect its malfunctions with the on board
diagnostic system.

SGI862-B

GI-20

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Multiple Switch

The continuity of multiple switch is described in two ways as shown below.

●

The switch chart is used in schematic diagrams.

●

The switch diagram is used in wiring diagrams.

SGI875

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Reference Area

The Reference Area of the wiring diagram contains references to additional electrical reference pages at the
end of the manual. If connector numbers and titles are shown in the Reference Area of the wiring diagram,
these connector symbols are not shown in the Connector Area.

SGI092A