1998 NISSAN PATROL diagram

GENERAL INFORMATION
SECTION
GI
CONTENTS
PRECAUTIONS...............................................................1
Precaution for Supplemental Restraint System
(SRS) ``AIR BAG'' and ``SEAT BELT
PRE-TENSIONER'' ......................................................1
General Precautions ....................................................2
Precautions for Multiport Fuel Injection System
or ECCS Engine ..........................................................3
Precautions for Three Way Catalyst
(If so equipped)............................................................4
Precautions for Engine Oils .........................................4
Precautions for Fuel ....................................................5
Precautions for Air Conditioning ..................................5
HOW TO USE THIS MANUAL........................................6
HOW TO READ WIRING DIAGRAMS............................8
Sample/Wiring Diagram Ð EXAMPL Ð......................8
Description .................................................................10
HOW TO CHECK TERMINAL.......................................17
How to Probe Connectors .........................................17
How to Check Enlarged Contact Spring of
Terminal .....................................................................18
Waterproof Connector Inspection ..............................19
Terminal Lock Inspection ...........................................19
HOW TO PERFORM EFFICIENT DIAGNOSIS FOR
AN ELECTRICAL INCIDENT........................................20Work Flow ..................................................................20
Incident Simulation Tests ...........................................21
Circuit Inspection .......................................................24
HOW TO FOLLOW FLOW CHART IN TROUBLE
DIAGNOSES..................................................................30
How to Follow This Flow Chart .................................31
CONSULT CHECKING SYSTEM..................................33
Function and System Application ..............................33
Lithium Battery Replacement ....................................33
Checking Equipment..................................................33
Loading Procedure ....................................................34
CONSULT Data Link Connector (DLC) Circuit..........34
IDENTIFICATION INFORMATION.................................35
Model Variation ..........................................................35
Identi®cation Number .................................................36
Dimensions ................................................................38
Wheels & Tires ..........................................................38
LIFTING POINTS AND TOW TRUCK TOWING...........39
Screw Jack ................................................................39
Garage Jack and Safety Stand .................................39
2-pole Lift ...................................................................40
Tow Truck Towing ......................................................41
SAE J1930 TERMINOLOGY LIST................................43
SAE J1930 Terminology List .....................................43
GI

Sample/Wiring Diagram Ð EXAMPL Ð
+For Description, refer to GI-10.
YGI001
HOW TO READ WIRING DIAGRAMS
GI-8

OPTIONAL SPLICE
SGI942
HOW TO READ WIRING DIAGRAMS
Sample/Wiring Diagram Ð EXAMPL Ð (Cont'd)
GI-9

Description
Number Item Description
V1Power condition+This shows the condition when the system receives battery positive voltage (can
be operated).
V2Fusible link+The double line shows that this is a fusible link.
+The open circle shows current ¯ow in, and the shaded circle shows current ¯ow
out.
V3Fusible link/fuse location+This shows the location of the fusible link or fuse in the fusible link or fuse box.
For arrangement, refer to EL section (``POWER SUPPLY ROUTING'').
V4Fuse+The single line shows that this is a fuse.
+The open circle shows current ¯ow in, and the shaded circle shows current ¯ow
out.
V5Current rating+This shows the current rating of the fusible link or fuse.
V6Connectors+This shows that connector
E3is female and connectorM1is 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 connector. Refer to GI-16.
V7Optional splice+The open circle shows that the splice is optional depending on vehicle application.
V8Splice+The shaded circle shows that the splice is always on the vehicle.
V9Page 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.
V10Common connector+The dotted lines between terminals show that these terminals are part of the same
connector.
V11Option abbreviation+This shows that the circuit is optional depending on vehicle application.
V12Relay+This shows an internal representation of the relay. For details, refer to EL section
(``STANDARDIZED RELAY'').
V13Connectors+This shows that the connector is connected to the body or a terminal with bolt or
nut.
V14Wire color+This shows a code for the color of the wire.
B = Black BR = Brown
W = White OR = Orange
R = Red P = Pink
G = Green PU = Purple
L = Blue GY = Gray
Y = Yellow SB = Sky Blue
LG = Light Green CH = Dark Brown
DG = Dark Green
When the wire color is striped, the base color is given ®rst, followed by the stripe
color as shown below:
Example: L/W = Blue with White Stripe
V15Option description+This shows a description of the option abbreviation used on the page.
V16Switch+This shows that continuity exists between terminals 1 and 2 when the switch is in
the A position. Continuity exists between terminals 1 and 3 when the switch is in
the B position.
V17Assembly parts+Connector terminal in component shows that it is a harness incorporated assem-
bly.
V18Cell code+This identi®es each page of the wiring diagram by section, system and wiring dia-
gram page number.
HOW TO READ WIRING DIAGRAMS
GI-10

Number Item Description
V19Current ¯ow arrow+Arrow indicates electric current ¯ow, especially where the direction of standard
¯ow (vertically downward or horizontally from left to right) is difficult to follow.
+A double arrow ``bÐ
c'' shows that current can ¯ow in either direction depending
on circuit operation.
V20System branch+This shows that the system branches to another system identi®ed by cell code
(section and system).
V21Page crossing+This arrow shows that the circuit continues to another page identi®ed by cell code.
+The C will match with the C on another page within the system other than the
next or preceding pages.
V22Shielded line+The line enclosed by broken line circle shows shield wire.
V23Component 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.
V24Component name+This shows the name of a component.
V25Connector 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 EL sec-
tion (``Main Harness'', ``HARNESS LAYOUT''). A coordinate grid is included for
complex harnesses to aid in locating connectors.
V26Ground (GND)+The line spliced and grounded under wire color shows that ground line is spliced
at the grounded connector.
V27Ground (GND)+This shows the ground connection.
V28Connector views+This area shows the connector faces of the components in the wiring diagram on
the page.
V29Common component+Connectors enclosed in broken line show that these connectors belong to the
same component.
V30Connector color+This shows a code for the color of the connector. For code meaning, refer to wire
color codes, NumberV14of this chart.
V31Fusible link and fuse box+This shows the arrangement of fusible link(s) and fuse(s), used for connector
views of ``POWER SUPPLY ROUTING'' in EL section.
The open square shows current ¯ow in, and the shaded square shows current
¯ow out.
V32Reference area+This shows that more information on the Super Multiple Junction (SMJ) and Joint
Connectors (J/C) exists on the foldout page. Refer to GI-16 for details.
HOW TO READ WIRING DIAGRAMS
Description (Cont'd)
GI-11

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
.
+Male and female terminals
Connector guides for male terminals are shown in black and
female terminals in white in wiring diagrams.
SGI364
SGI363
HOW TO READ WIRING DIAGRAMS
Description (Cont'd)
GI-12

Harness indication
+Letter designations next to test meter probe indicate harness
(connector) wire color.
+Connector numbers in a single circle
M33indicate harness con-
nectors.
Component indication
+Connector numbers in a double circle indicate component con-
nectors.
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 READ WIRING DIAGRAMS
Description (Cont'd)
GI-13

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 (Engine Control Module) 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-A
HOW TO READ WIRING DIAGRAMS
Description (Cont'd)
GI-14